1975 lines
72 KiB
Plaintext
1975 lines
72 KiB
Plaintext
--
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-- CREATE_VIEW
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-- Virtual class definitions
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-- (this also tests the query rewrite system)
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--
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CREATE VIEW street AS
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SELECT r.name, r.thepath, c.cname AS cname
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FROM ONLY road r, real_city c
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WHERE c.outline ## r.thepath;
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CREATE VIEW iexit AS
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SELECT ih.name, ih.thepath,
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interpt_pp(ih.thepath, r.thepath) AS exit
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FROM ihighway ih, ramp r
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WHERE ih.thepath ## r.thepath;
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CREATE VIEW toyemp AS
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SELECT name, age, location, 12*salary AS annualsal
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FROM emp;
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-- Test comments
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COMMENT ON VIEW noview IS 'no view';
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ERROR: relation "noview" does not exist
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COMMENT ON VIEW toyemp IS 'is a view';
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COMMENT ON VIEW toyemp IS NULL;
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-- These views are left around mainly to exercise special cases in pg_dump.
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CREATE TABLE view_base_table (key int PRIMARY KEY, data varchar(20));
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CREATE VIEW key_dependent_view AS
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SELECT * FROM view_base_table GROUP BY key;
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ALTER TABLE view_base_table DROP CONSTRAINT view_base_table_pkey; -- fails
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ERROR: cannot drop constraint view_base_table_pkey on table view_base_table because other objects depend on it
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DETAIL: view key_dependent_view depends on constraint view_base_table_pkey on table view_base_table
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HINT: Use DROP ... CASCADE to drop the dependent objects too.
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CREATE VIEW key_dependent_view_no_cols AS
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SELECT FROM view_base_table GROUP BY key HAVING length(data) > 0;
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--
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-- CREATE OR REPLACE VIEW
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--
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CREATE TABLE viewtest_tbl (a int, b int);
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COPY viewtest_tbl FROM stdin;
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CREATE OR REPLACE VIEW viewtest AS
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SELECT * FROM viewtest_tbl;
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CREATE OR REPLACE VIEW viewtest AS
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SELECT * FROM viewtest_tbl WHERE a > 10;
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SELECT * FROM viewtest;
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a | b
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----+----
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15 | 20
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20 | 25
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(2 rows)
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a, b FROM viewtest_tbl WHERE a > 5 ORDER BY b DESC;
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SELECT * FROM viewtest;
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a | b
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----+----
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20 | 25
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15 | 20
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10 | 15
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(3 rows)
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-- should fail
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a FROM viewtest_tbl WHERE a <> 20;
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ERROR: cannot drop columns from view
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-- should fail
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CREATE OR REPLACE VIEW viewtest AS
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SELECT 1, * FROM viewtest_tbl;
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ERROR: cannot change name of view column "a" to "?column?"
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HINT: Use ALTER VIEW ... RENAME COLUMN ... to change name of view column instead.
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-- should fail
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a, b::numeric FROM viewtest_tbl;
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ERROR: cannot change data type of view column "b" from integer to numeric
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-- should work
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a, b, 0 AS c FROM viewtest_tbl;
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DROP VIEW viewtest;
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DROP TABLE viewtest_tbl;
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-- tests for temporary views
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CREATE SCHEMA temp_view_test
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CREATE TABLE base_table (a int, id int)
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CREATE TABLE base_table2 (a int, id int);
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SET search_path TO temp_view_test, public;
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CREATE TEMPORARY TABLE temp_table (a int, id int);
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-- should be created in temp_view_test schema
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CREATE VIEW v1 AS SELECT * FROM base_table;
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-- should be created in temp object schema
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CREATE VIEW v1_temp AS SELECT * FROM temp_table;
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NOTICE: view "v1_temp" will be a temporary view
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-- should be created in temp object schema
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CREATE TEMP VIEW v2_temp AS SELECT * FROM base_table;
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-- should be created in temp_views schema
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CREATE VIEW temp_view_test.v2 AS SELECT * FROM base_table;
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-- should fail
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CREATE VIEW temp_view_test.v3_temp AS SELECT * FROM temp_table;
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NOTICE: view "v3_temp" will be a temporary view
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ERROR: cannot create temporary relation in non-temporary schema
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-- should fail
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CREATE SCHEMA test_view_schema
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CREATE TEMP VIEW testview AS SELECT 1;
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ERROR: cannot create temporary relation in non-temporary schema
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-- joins: if any of the join relations are temporary, the view
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-- should also be temporary
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-- should be non-temp
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CREATE VIEW v3 AS
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SELECT t1.a AS t1_a, t2.a AS t2_a
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FROM base_table t1, base_table2 t2
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WHERE t1.id = t2.id;
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-- should be temp (one join rel is temp)
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CREATE VIEW v4_temp AS
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SELECT t1.a AS t1_a, t2.a AS t2_a
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FROM base_table t1, temp_table t2
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WHERE t1.id = t2.id;
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NOTICE: view "v4_temp" will be a temporary view
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-- should be temp
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CREATE VIEW v5_temp AS
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SELECT t1.a AS t1_a, t2.a AS t2_a, t3.a AS t3_a
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FROM base_table t1, base_table2 t2, temp_table t3
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WHERE t1.id = t2.id and t2.id = t3.id;
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NOTICE: view "v5_temp" will be a temporary view
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-- subqueries
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CREATE VIEW v4 AS SELECT * FROM base_table WHERE id IN (SELECT id FROM base_table2);
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CREATE VIEW v5 AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM base_table2) t2;
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CREATE VIEW v6 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM base_table2);
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CREATE VIEW v7 AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM base_table2);
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CREATE VIEW v8 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1);
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CREATE VIEW v6_temp AS SELECT * FROM base_table WHERE id IN (SELECT id FROM temp_table);
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NOTICE: view "v6_temp" will be a temporary view
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CREATE VIEW v7_temp AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM temp_table) t2;
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NOTICE: view "v7_temp" will be a temporary view
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CREATE VIEW v8_temp AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM temp_table);
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NOTICE: view "v8_temp" will be a temporary view
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CREATE VIEW v9_temp AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM temp_table);
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NOTICE: view "v9_temp" will be a temporary view
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-- a view should also be temporary if it references a temporary view
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CREATE VIEW v10_temp AS SELECT * FROM v7_temp;
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NOTICE: view "v10_temp" will be a temporary view
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CREATE VIEW v11_temp AS SELECT t1.id, t2.a FROM base_table t1, v10_temp t2;
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NOTICE: view "v11_temp" will be a temporary view
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CREATE VIEW v12_temp AS SELECT true FROM v11_temp;
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NOTICE: view "v12_temp" will be a temporary view
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-- a view should also be temporary if it references a temporary sequence
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CREATE SEQUENCE seq1;
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CREATE TEMPORARY SEQUENCE seq1_temp;
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CREATE VIEW v9 AS SELECT seq1.is_called FROM seq1;
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CREATE VIEW v13_temp AS SELECT seq1_temp.is_called FROM seq1_temp;
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NOTICE: view "v13_temp" will be a temporary view
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SELECT relname FROM pg_class
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WHERE relname LIKE 'v_'
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AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'temp_view_test')
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ORDER BY relname;
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relname
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---------
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v1
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v2
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v3
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v4
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v5
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v6
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v7
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v8
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v9
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(9 rows)
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SELECT relname FROM pg_class
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WHERE relname LIKE 'v%'
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AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
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ORDER BY relname;
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relname
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----------
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v10_temp
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v11_temp
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v12_temp
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v13_temp
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v1_temp
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v2_temp
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v4_temp
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v5_temp
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v6_temp
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v7_temp
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v8_temp
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v9_temp
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(12 rows)
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CREATE SCHEMA testviewschm2;
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SET search_path TO testviewschm2, public;
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CREATE TABLE t1 (num int, name text);
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CREATE TABLE t2 (num2 int, value text);
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CREATE TEMP TABLE tt (num2 int, value text);
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CREATE VIEW nontemp1 AS SELECT * FROM t1 CROSS JOIN t2;
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CREATE VIEW temporal1 AS SELECT * FROM t1 CROSS JOIN tt;
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NOTICE: view "temporal1" will be a temporary view
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CREATE VIEW nontemp2 AS SELECT * FROM t1 INNER JOIN t2 ON t1.num = t2.num2;
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CREATE VIEW temporal2 AS SELECT * FROM t1 INNER JOIN tt ON t1.num = tt.num2;
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NOTICE: view "temporal2" will be a temporary view
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CREATE VIEW nontemp3 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2;
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CREATE VIEW temporal3 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2;
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NOTICE: view "temporal3" will be a temporary view
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CREATE VIEW nontemp4 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2 AND t2.value = 'xxx';
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CREATE VIEW temporal4 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2 AND tt.value = 'xxx';
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NOTICE: view "temporal4" will be a temporary view
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SELECT relname FROM pg_class
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WHERE relname LIKE 'nontemp%'
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AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'testviewschm2')
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ORDER BY relname;
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relname
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----------
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nontemp1
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nontemp2
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nontemp3
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nontemp4
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(4 rows)
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SELECT relname FROM pg_class
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WHERE relname LIKE 'temporal%'
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AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
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ORDER BY relname;
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relname
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-----------
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temporal1
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temporal2
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temporal3
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temporal4
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(4 rows)
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CREATE TABLE tbl1 ( a int, b int);
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CREATE TABLE tbl2 (c int, d int);
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CREATE TABLE tbl3 (e int, f int);
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CREATE TABLE tbl4 (g int, h int);
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CREATE TEMP TABLE tmptbl (i int, j int);
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--Should be in testviewschm2
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CREATE VIEW pubview AS SELECT * FROM tbl1 WHERE tbl1.a
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BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
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AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f);
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SELECT count(*) FROM pg_class where relname = 'pubview'
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AND relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname = 'testviewschm2');
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count
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-------
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1
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(1 row)
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--Should be in temp object schema
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CREATE VIEW mytempview AS SELECT * FROM tbl1 WHERE tbl1.a
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BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
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AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f)
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AND NOT EXISTS (SELECT g FROM tbl4 LEFT JOIN tmptbl ON tbl4.h = tmptbl.j);
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NOTICE: view "mytempview" will be a temporary view
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SELECT count(*) FROM pg_class where relname LIKE 'mytempview'
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And relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname LIKE 'pg_temp%');
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count
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-------
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1
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(1 row)
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--
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-- CREATE VIEW and WITH(...) clause
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--
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CREATE VIEW mysecview1
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AS SELECT * FROM tbl1 WHERE a = 0;
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CREATE VIEW mysecview2 WITH (security_barrier=true)
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AS SELECT * FROM tbl1 WHERE a > 0;
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CREATE VIEW mysecview3 WITH (security_barrier=false)
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AS SELECT * FROM tbl1 WHERE a < 0;
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CREATE VIEW mysecview4 WITH (security_barrier)
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AS SELECT * FROM tbl1 WHERE a <> 0;
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CREATE VIEW mysecview5 WITH (security_barrier=100) -- Error
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AS SELECT * FROM tbl1 WHERE a > 100;
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ERROR: invalid value for boolean option "security_barrier": 100
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CREATE VIEW mysecview6 WITH (invalid_option) -- Error
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AS SELECT * FROM tbl1 WHERE a < 100;
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ERROR: unrecognized parameter "invalid_option"
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SELECT relname, relkind, reloptions FROM pg_class
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WHERE oid in ('mysecview1'::regclass, 'mysecview2'::regclass,
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'mysecview3'::regclass, 'mysecview4'::regclass)
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ORDER BY relname;
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relname | relkind | reloptions
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------------+---------+--------------------------
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mysecview1 | v |
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mysecview2 | v | {security_barrier=true}
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mysecview3 | v | {security_barrier=false}
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mysecview4 | v | {security_barrier=true}
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(4 rows)
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CREATE OR REPLACE VIEW mysecview1
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AS SELECT * FROM tbl1 WHERE a = 256;
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CREATE OR REPLACE VIEW mysecview2
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AS SELECT * FROM tbl1 WHERE a > 256;
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CREATE OR REPLACE VIEW mysecview3 WITH (security_barrier=true)
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AS SELECT * FROM tbl1 WHERE a < 256;
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CREATE OR REPLACE VIEW mysecview4 WITH (security_barrier=false)
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AS SELECT * FROM tbl1 WHERE a <> 256;
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SELECT relname, relkind, reloptions FROM pg_class
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WHERE oid in ('mysecview1'::regclass, 'mysecview2'::regclass,
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'mysecview3'::regclass, 'mysecview4'::regclass)
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ORDER BY relname;
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relname | relkind | reloptions
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------------+---------+--------------------------
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mysecview1 | v |
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mysecview2 | v |
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mysecview3 | v | {security_barrier=true}
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mysecview4 | v | {security_barrier=false}
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(4 rows)
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-- Check that unknown literals are converted to "text" in CREATE VIEW,
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-- so that we don't end up with unknown-type columns.
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CREATE VIEW unspecified_types AS
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SELECT 42 as i, 42.5 as num, 'foo' as u, 'foo'::unknown as u2, null as n;
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\d+ unspecified_types
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View "testviewschm2.unspecified_types"
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Column | Type | Collation | Nullable | Default | Storage | Description
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--------+---------+-----------+----------+---------+----------+-------------
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i | integer | | | | plain |
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num | numeric | | | | main |
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u | text | | | | extended |
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u2 | text | | | | extended |
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n | text | | | | extended |
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View definition:
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SELECT 42 AS i,
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42.5 AS num,
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'foo'::text AS u,
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'foo'::text AS u2,
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NULL::text AS n;
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SELECT * FROM unspecified_types;
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i | num | u | u2 | n
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----+------+-----+-----+---
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42 | 42.5 | foo | foo |
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(1 row)
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-- This test checks that proper typmods are assigned in a multi-row VALUES
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CREATE VIEW tt1 AS
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SELECT * FROM (
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VALUES
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('abc'::varchar(3), '0123456789', 42, 'abcd'::varchar(4)),
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('0123456789', 'abc'::varchar(3), 42.12, 'abc'::varchar(4))
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) vv(a,b,c,d);
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\d+ tt1
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View "testviewschm2.tt1"
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Column | Type | Collation | Nullable | Default | Storage | Description
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--------+----------------------+-----------+----------+---------+----------+-------------
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a | character varying | | | | extended |
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b | character varying | | | | extended |
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c | numeric | | | | main |
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d | character varying(4) | | | | extended |
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View definition:
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SELECT vv.a,
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vv.b,
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vv.c,
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vv.d
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FROM ( VALUES ('abc'::character varying(3),'0123456789'::character varying,42,'abcd'::character varying(4)), ('0123456789'::character varying,'abc'::character varying(3),42.12,'abc'::character varying(4))) vv(a, b, c, d);
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SELECT * FROM tt1;
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a | b | c | d
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------------+------------+-------+------
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abc | 0123456789 | 42 | abcd
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0123456789 | abc | 42.12 | abc
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(2 rows)
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SELECT a::varchar(3) FROM tt1;
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a
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-----
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abc
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012
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(2 rows)
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DROP VIEW tt1;
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-- Test view decompilation in the face of relation renaming conflicts
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CREATE TABLE tt1 (f1 int, f2 int, f3 text);
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CREATE TABLE tx1 (x1 int, x2 int, x3 text);
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CREATE TABLE temp_view_test.tt1 (y1 int, f2 int, f3 text);
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CREATE VIEW aliased_view_1 AS
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select * from tt1
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where exists (select 1 from tx1 where tt1.f1 = tx1.x1);
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CREATE VIEW aliased_view_2 AS
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select * from tt1 a1
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where exists (select 1 from tx1 where a1.f1 = tx1.x1);
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CREATE VIEW aliased_view_3 AS
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select * from tt1
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where exists (select 1 from tx1 a2 where tt1.f1 = a2.x1);
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CREATE VIEW aliased_view_4 AS
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select * from temp_view_test.tt1
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where exists (select 1 from tt1 where temp_view_test.tt1.y1 = tt1.f1);
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\d+ aliased_view_1
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View "testviewschm2.aliased_view_1"
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Column | Type | Collation | Nullable | Default | Storage | Description
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--------+---------+-----------+----------+---------+----------+-------------
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f1 | integer | | | | plain |
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f2 | integer | | | | plain |
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f3 | text | | | | extended |
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View definition:
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SELECT tt1.f1,
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tt1.f2,
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tt1.f3
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FROM tt1
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WHERE (EXISTS ( SELECT 1
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FROM tx1
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WHERE tt1.f1 = tx1.x1));
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\d+ aliased_view_2
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View "testviewschm2.aliased_view_2"
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Column | Type | Collation | Nullable | Default | Storage | Description
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--------+---------+-----------+----------+---------+----------+-------------
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f1 | integer | | | | plain |
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f2 | integer | | | | plain |
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f3 | text | | | | extended |
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View definition:
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SELECT a1.f1,
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a1.f2,
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a1.f3
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FROM tt1 a1
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WHERE (EXISTS ( SELECT 1
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FROM tx1
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WHERE a1.f1 = tx1.x1));
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\d+ aliased_view_3
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View "testviewschm2.aliased_view_3"
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Column | Type | Collation | Nullable | Default | Storage | Description
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--------+---------+-----------+----------+---------+----------+-------------
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f1 | integer | | | | plain |
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f2 | integer | | | | plain |
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f3 | text | | | | extended |
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View definition:
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SELECT tt1.f1,
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tt1.f2,
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tt1.f3
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FROM tt1
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WHERE (EXISTS ( SELECT 1
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FROM tx1 a2
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WHERE tt1.f1 = a2.x1));
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\d+ aliased_view_4
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View "testviewschm2.aliased_view_4"
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Column | Type | Collation | Nullable | Default | Storage | Description
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--------+---------+-----------+----------+---------+----------+-------------
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y1 | integer | | | | plain |
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f2 | integer | | | | plain |
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f3 | text | | | | extended |
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View definition:
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SELECT tt1.y1,
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tt1.f2,
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tt1.f3
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FROM temp_view_test.tt1
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WHERE (EXISTS ( SELECT 1
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FROM tt1 tt1_1
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WHERE tt1.y1 = tt1_1.f1));
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ALTER TABLE tx1 RENAME TO a1;
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\d+ aliased_view_1
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View "testviewschm2.aliased_view_1"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tt1.f1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1
|
|
WHERE tt1.f1 = a1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM tt1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a1_1
|
|
WHERE a1.f1 = a1_1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tt1.f1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a2
|
|
WHERE tt1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
y1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 tt1_1
|
|
WHERE tt1.y1 = tt1_1.f1));
|
|
|
|
ALTER TABLE tt1 RENAME TO a2;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1
|
|
WHERE a2.f1 = a1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM a2 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a1_1
|
|
WHERE a1.f1 = a1_1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a1 a2_1
|
|
WHERE a2.f1 = a2_1.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
y1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a2
|
|
WHERE tt1.y1 = a2.f1));
|
|
|
|
ALTER TABLE a1 RENAME TO tt1;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a2.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM a2 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a2.f1,
|
|
a2.f2,
|
|
a2.f3
|
|
FROM a2
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 a2_1
|
|
WHERE a2.f1 = a2_1.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
y1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM a2
|
|
WHERE tt1.y1 = a2.f1));
|
|
|
|
ALTER TABLE a2 RENAME TO tx1;
|
|
ALTER TABLE tx1 SET SCHEMA temp_view_test;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE tx1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM temp_view_test.tx1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 a2
|
|
WHERE tx1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
y1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tt1.y1,
|
|
tt1.f2,
|
|
tt1.f3
|
|
FROM temp_view_test.tt1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM temp_view_test.tx1
|
|
WHERE tt1.y1 = tx1.f1));
|
|
|
|
ALTER TABLE temp_view_test.tt1 RENAME TO tmp1;
|
|
ALTER TABLE temp_view_test.tmp1 SET SCHEMA testviewschm2;
|
|
ALTER TABLE tmp1 RENAME TO tx1;
|
|
\d+ aliased_view_1
|
|
View "testviewschm2.aliased_view_1"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE tx1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_2
|
|
View "testviewschm2.aliased_view_2"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT a1.f1,
|
|
a1.f2,
|
|
a1.f3
|
|
FROM temp_view_test.tx1 a1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1
|
|
WHERE a1.f1 = tt1.x1));
|
|
|
|
\d+ aliased_view_3
|
|
View "testviewschm2.aliased_view_3"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
f1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tx1.f1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM temp_view_test.tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM tt1 a2
|
|
WHERE tx1.f1 = a2.x1));
|
|
|
|
\d+ aliased_view_4
|
|
View "testviewschm2.aliased_view_4"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+----------+-------------
|
|
y1 | integer | | | | plain |
|
|
f2 | integer | | | | plain |
|
|
f3 | text | | | | extended |
|
|
View definition:
|
|
SELECT tx1.y1,
|
|
tx1.f2,
|
|
tx1.f3
|
|
FROM tx1
|
|
WHERE (EXISTS ( SELECT 1
|
|
FROM temp_view_test.tx1 tx1_1
|
|
WHERE tx1.y1 = tx1_1.f1));
|
|
|
|
-- Test aliasing of joins
|
|
create view view_of_joins as
|
|
select * from
|
|
(select * from (tbl1 cross join tbl2) same) ss,
|
|
(tbl3 cross join tbl4) same;
|
|
\d+ view_of_joins
|
|
View "testviewschm2.view_of_joins"
|
|
Column | Type | Collation | Nullable | Default | Storage | Description
|
|
--------+---------+-----------+----------+---------+---------+-------------
|
|
a | integer | | | | plain |
|
|
b | integer | | | | plain |
|
|
c | integer | | | | plain |
|
|
d | integer | | | | plain |
|
|
e | integer | | | | plain |
|
|
f | integer | | | | plain |
|
|
g | integer | | | | plain |
|
|
h | integer | | | | plain |
|
|
View definition:
|
|
SELECT ss.a,
|
|
ss.b,
|
|
ss.c,
|
|
ss.d,
|
|
same.e,
|
|
same.f,
|
|
same.g,
|
|
same.h
|
|
FROM ( SELECT same_1.a,
|
|
same_1.b,
|
|
same_1.c,
|
|
same_1.d
|
|
FROM (tbl1
|
|
CROSS JOIN tbl2) same_1) ss,
|
|
(tbl3
|
|
CROSS JOIN tbl4) same;
|
|
|
|
-- Test view decompilation in the face of column addition/deletion/renaming
|
|
create table tt2 (a int, b int, c int);
|
|
create table tt3 (ax int8, b int2, c numeric);
|
|
create table tt4 (ay int, b int, q int);
|
|
create view v1 as select * from tt2 natural join tt3;
|
|
create view v1a as select * from (tt2 natural join tt3) j;
|
|
create view v2 as select * from tt2 join tt3 using (b,c) join tt4 using (b);
|
|
create view v2a as select * from (tt2 join tt3 using (b,c) join tt4 using (b)) j;
|
|
create view v3 as select * from tt2 join tt3 using (b,c) full join tt4 using (b);
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
JOIN tt4 USING (b)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
-------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt2 add column d int;
|
|
alter table tt2 add column e int;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
----------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
JOIN tt4 USING (b)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
-------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 USING (b, c) +
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt3 rename c to d;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
-------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
----------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)+
|
|
JOIN tt4 USING (b)) j;
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
------------------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c) USING (b, c)+
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt3 add column c int;
|
|
alter table tt3 add column e int;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)) j(b, c, a, d, e, ax, c_1, e_1);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c) +
|
|
JOIN tt4 USING (b)) j(b, c, a, d, e, ax, c_1, e_1, ay, q);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
alter table tt2 drop column d;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v1a', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)) j(b, c, a, e, ax, c_1, e_1);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v2a', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------------
|
|
SELECT j.b, +
|
|
j.c, +
|
|
j.a, +
|
|
j.ax, +
|
|
j.ay, +
|
|
j.q +
|
|
FROM (tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c) +
|
|
JOIN tt4 USING (b)) j(b, c, a, e, ax, c_1, e_1, ay, q);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v3', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT b, +
|
|
tt3.c, +
|
|
tt2.a, +
|
|
tt3.ax, +
|
|
tt4.ay, +
|
|
tt4.q +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c)+
|
|
FULL JOIN tt4 USING (b);
|
|
(1 row)
|
|
|
|
create table tt5 (a int, b int);
|
|
create table tt6 (c int, d int);
|
|
create view vv1 as select * from (tt5 cross join tt6) j(aa,bb,cc,dd);
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, cc, dd);
|
|
(1 row)
|
|
|
|
alter table tt5 add column c int;
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, c, cc, dd);
|
|
(1 row)
|
|
|
|
alter table tt5 add column cc int;
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, c, cc_1, cc, dd);
|
|
(1 row)
|
|
|
|
alter table tt5 drop column c;
|
|
select pg_get_viewdef('vv1', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------
|
|
SELECT j.aa, +
|
|
j.bb, +
|
|
j.cc, +
|
|
j.dd +
|
|
FROM (tt5 +
|
|
CROSS JOIN tt6) j(aa, bb, cc_1, cc, dd);
|
|
(1 row)
|
|
|
|
create view v4 as select * from v1;
|
|
alter view v1 rename column a to x;
|
|
select pg_get_viewdef('v1', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------------
|
|
SELECT tt2.b, +
|
|
tt3.c, +
|
|
tt2.a AS x, +
|
|
tt3.ax +
|
|
FROM tt2 +
|
|
JOIN tt3 tt3(ax, b, c, c_1, e) USING (b, c);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('v4', true);
|
|
pg_get_viewdef
|
|
----------------
|
|
SELECT v1.b, +
|
|
v1.c, +
|
|
v1.x AS a,+
|
|
v1.ax +
|
|
FROM v1;
|
|
(1 row)
|
|
|
|
-- Unnamed FULL JOIN USING is lots of fun too
|
|
create table tt7 (x int, xx int, y int);
|
|
alter table tt7 drop column xx;
|
|
create table tt8 (x int, z int);
|
|
create view vv2 as
|
|
select * from (values(1,2,3,4,5)) v(a,b,c,d,e)
|
|
union all
|
|
select * from tt7 full join tt8 using (x), tt8 tt8x;
|
|
select pg_get_viewdef('vv2', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.d, +
|
|
v.e +
|
|
FROM ( VALUES (1,2,3,4,5)) v(a, b, c, d, e)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
tt8x.x_1 AS d, +
|
|
tt8x.z AS e +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt8 tt8x(x_1, z);
|
|
(1 row)
|
|
|
|
create view vv3 as
|
|
select * from (values(1,2,3,4,5,6)) v(a,b,c,x,e,f)
|
|
union all
|
|
select * from
|
|
tt7 full join tt8 using (x),
|
|
tt7 tt7x full join tt8 tt8x using (x);
|
|
select pg_get_viewdef('vv3', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f +
|
|
FROM ( VALUES (1,2,3,4,5,6)) v(a, b, c, x, e, f)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y) +
|
|
FULL JOIN tt8 tt8x(x_1, z) USING (x_1);
|
|
(1 row)
|
|
|
|
create view vv4 as
|
|
select * from (values(1,2,3,4,5,6,7)) v(a,b,c,x,e,f,g)
|
|
union all
|
|
select * from
|
|
tt7 full join tt8 using (x),
|
|
tt7 tt7x full join tt8 tt8x using (x) full join tt8 tt8y using (x);
|
|
select pg_get_viewdef('vv4', true);
|
|
pg_get_viewdef
|
|
----------------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f, +
|
|
v.g +
|
|
FROM ( VALUES (1,2,3,4,5,6,7)) v(a, b, c, x, e, f, g)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f, +
|
|
tt8y.z AS g +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y) +
|
|
FULL JOIN tt8 tt8x(x_1, z) USING (x_1) +
|
|
FULL JOIN tt8 tt8y(x_1, z) USING (x_1);
|
|
(1 row)
|
|
|
|
alter table tt7 add column zz int;
|
|
alter table tt7 add column z int;
|
|
alter table tt7 drop column zz;
|
|
alter table tt8 add column z2 int;
|
|
select pg_get_viewdef('vv2', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.d, +
|
|
v.e +
|
|
FROM ( VALUES (1,2,3,4,5)) v(a, b, c, d, e)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
tt8x.x_1 AS d, +
|
|
tt8x.z AS e +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt8 tt8x(x_1, z, z2);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('vv3', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f +
|
|
FROM ( VALUES (1,2,3,4,5,6)) v(a, b, c, x, e, f)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y, z) +
|
|
FULL JOIN tt8 tt8x(x_1, z, z2) USING (x_1);
|
|
(1 row)
|
|
|
|
select pg_get_viewdef('vv4', true);
|
|
pg_get_viewdef
|
|
----------------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.x, +
|
|
v.e, +
|
|
v.f, +
|
|
v.g +
|
|
FROM ( VALUES (1,2,3,4,5,6,7)) v(a, b, c, x, e, f, g)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7.y AS b, +
|
|
tt8.z AS c, +
|
|
x_1 AS x, +
|
|
tt7x.y AS e, +
|
|
tt8x.z AS f, +
|
|
tt8y.z AS g +
|
|
FROM tt7 +
|
|
FULL JOIN tt8 USING (x), +
|
|
tt7 tt7x(x_1, y, z) +
|
|
FULL JOIN tt8 tt8x(x_1, z, z2) USING (x_1) +
|
|
FULL JOIN tt8 tt8y(x_1, z, z2) USING (x_1);
|
|
(1 row)
|
|
|
|
-- Implicit coercions in a JOIN USING create issues similar to FULL JOIN
|
|
create table tt7a (x date, xx int, y int);
|
|
alter table tt7a drop column xx;
|
|
create table tt8a (x timestamptz, z int);
|
|
create view vv2a as
|
|
select * from (values(now(),2,3,now(),5)) v(a,b,c,d,e)
|
|
union all
|
|
select * from tt7a left join tt8a using (x), tt8a tt8ax;
|
|
select pg_get_viewdef('vv2a', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------
|
|
SELECT v.a, +
|
|
v.b, +
|
|
v.c, +
|
|
v.d, +
|
|
v.e +
|
|
FROM ( VALUES (now(),2,3,now(),5)) v(a, b, c, d, e)+
|
|
UNION ALL +
|
|
SELECT x AS a, +
|
|
tt7a.y AS b, +
|
|
tt8a.z AS c, +
|
|
tt8ax.x_1 AS d, +
|
|
tt8ax.z AS e +
|
|
FROM tt7a +
|
|
LEFT JOIN tt8a USING (x), +
|
|
tt8a tt8ax(x_1, z);
|
|
(1 row)
|
|
|
|
--
|
|
-- Also check dropping a column that existed when the view was made
|
|
--
|
|
create table tt9 (x int, xx int, y int);
|
|
create table tt10 (x int, z int);
|
|
create view vv5 as select x,y,z from tt9 join tt10 using(x);
|
|
select pg_get_viewdef('vv5', true);
|
|
pg_get_viewdef
|
|
---------------------------
|
|
SELECT tt9.x, +
|
|
tt9.y, +
|
|
tt10.z +
|
|
FROM tt9 +
|
|
JOIN tt10 USING (x);
|
|
(1 row)
|
|
|
|
alter table tt9 drop column xx;
|
|
select pg_get_viewdef('vv5', true);
|
|
pg_get_viewdef
|
|
---------------------------
|
|
SELECT tt9.x, +
|
|
tt9.y, +
|
|
tt10.z +
|
|
FROM tt9 +
|
|
JOIN tt10 USING (x);
|
|
(1 row)
|
|
|
|
--
|
|
-- Another corner case is that we might add a column to a table below a
|
|
-- JOIN USING, and thereby make the USING column name ambiguous
|
|
--
|
|
create table tt11 (x int, y int);
|
|
create table tt12 (x int, z int);
|
|
create table tt13 (z int, q int);
|
|
create view vv6 as select x,y,z,q from
|
|
(tt11 join tt12 using(x)) join tt13 using(z);
|
|
select pg_get_viewdef('vv6', true);
|
|
pg_get_viewdef
|
|
---------------------------
|
|
SELECT tt11.x, +
|
|
tt11.y, +
|
|
tt12.z, +
|
|
tt13.q +
|
|
FROM tt11 +
|
|
JOIN tt12 USING (x) +
|
|
JOIN tt13 USING (z);
|
|
(1 row)
|
|
|
|
alter table tt11 add column z int;
|
|
select pg_get_viewdef('vv6', true);
|
|
pg_get_viewdef
|
|
------------------------------
|
|
SELECT tt11.x, +
|
|
tt11.y, +
|
|
tt12.z, +
|
|
tt13.q +
|
|
FROM tt11 tt11(x, y, z_1)+
|
|
JOIN tt12 USING (x) +
|
|
JOIN tt13 USING (z);
|
|
(1 row)
|
|
|
|
--
|
|
-- Check cases involving dropped/altered columns in a function's rowtype result
|
|
--
|
|
create table tt14t (f1 text, f2 text, f3 text, f4 text);
|
|
insert into tt14t values('foo', 'bar', 'baz', '42');
|
|
alter table tt14t drop column f2;
|
|
create function tt14f() returns setof tt14t as
|
|
$$
|
|
declare
|
|
rec1 record;
|
|
begin
|
|
for rec1 in select * from tt14t
|
|
loop
|
|
return next rec1;
|
|
end loop;
|
|
end;
|
|
$$
|
|
language plpgsql;
|
|
create view tt14v as select t.* from tt14f() t;
|
|
select pg_get_viewdef('tt14v', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT t.f1, +
|
|
t.f3, +
|
|
t.f4 +
|
|
FROM tt14f() t(f1, f3, f4);
|
|
(1 row)
|
|
|
|
select * from tt14v;
|
|
f1 | f3 | f4
|
|
-----+-----+----
|
|
foo | baz | 42
|
|
(1 row)
|
|
|
|
begin;
|
|
-- this perhaps should be rejected, but it isn't:
|
|
alter table tt14t drop column f3;
|
|
-- f3 is still in the view ...
|
|
select pg_get_viewdef('tt14v', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT t.f1, +
|
|
t.f3, +
|
|
t.f4 +
|
|
FROM tt14f() t(f1, f3, f4);
|
|
(1 row)
|
|
|
|
-- but will fail at execution
|
|
select f1, f4 from tt14v;
|
|
f1 | f4
|
|
-----+----
|
|
foo | 42
|
|
(1 row)
|
|
|
|
select * from tt14v;
|
|
ERROR: attribute 3 of type record has been dropped
|
|
rollback;
|
|
begin;
|
|
-- this perhaps should be rejected, but it isn't:
|
|
alter table tt14t alter column f4 type integer using f4::integer;
|
|
-- f4 is still in the view ...
|
|
select pg_get_viewdef('tt14v', true);
|
|
pg_get_viewdef
|
|
--------------------------------
|
|
SELECT t.f1, +
|
|
t.f3, +
|
|
t.f4 +
|
|
FROM tt14f() t(f1, f3, f4);
|
|
(1 row)
|
|
|
|
-- but will fail at execution
|
|
select f1, f3 from tt14v;
|
|
f1 | f3
|
|
-----+-----
|
|
foo | baz
|
|
(1 row)
|
|
|
|
select * from tt14v;
|
|
ERROR: attribute 4 of type record has wrong type
|
|
DETAIL: Table has type integer, but query expects text.
|
|
rollback;
|
|
-- check display of whole-row variables in some corner cases
|
|
create type nestedcomposite as (x int8_tbl);
|
|
create view tt15v as select row(i)::nestedcomposite from int8_tbl i;
|
|
select * from tt15v;
|
|
row
|
|
------------------------------------------
|
|
("(123,456)")
|
|
("(123,4567890123456789)")
|
|
("(4567890123456789,123)")
|
|
("(4567890123456789,4567890123456789)")
|
|
("(4567890123456789,-4567890123456789)")
|
|
(5 rows)
|
|
|
|
select pg_get_viewdef('tt15v', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------------
|
|
SELECT ROW(i.*::int8_tbl)::nestedcomposite AS "row"+
|
|
FROM int8_tbl i;
|
|
(1 row)
|
|
|
|
select row(i.*::int8_tbl)::nestedcomposite from int8_tbl i;
|
|
row
|
|
------------------------------------------
|
|
("(123,456)")
|
|
("(123,4567890123456789)")
|
|
("(4567890123456789,123)")
|
|
("(4567890123456789,4567890123456789)")
|
|
("(4567890123456789,-4567890123456789)")
|
|
(5 rows)
|
|
|
|
create view tt16v as select * from int8_tbl i, lateral(values(i)) ss;
|
|
select * from tt16v;
|
|
q1 | q2 | column1
|
|
------------------+-------------------+--------------------------------------
|
|
123 | 456 | (123,456)
|
|
123 | 4567890123456789 | (123,4567890123456789)
|
|
4567890123456789 | 123 | (4567890123456789,123)
|
|
4567890123456789 | 4567890123456789 | (4567890123456789,4567890123456789)
|
|
4567890123456789 | -4567890123456789 | (4567890123456789,-4567890123456789)
|
|
(5 rows)
|
|
|
|
select pg_get_viewdef('tt16v', true);
|
|
pg_get_viewdef
|
|
-------------------------------------------
|
|
SELECT i.q1, +
|
|
i.q2, +
|
|
ss.column1 +
|
|
FROM int8_tbl i, +
|
|
LATERAL ( VALUES (i.*::int8_tbl)) ss;
|
|
(1 row)
|
|
|
|
select * from int8_tbl i, lateral(values(i.*::int8_tbl)) ss;
|
|
q1 | q2 | column1
|
|
------------------+-------------------+--------------------------------------
|
|
123 | 456 | (123,456)
|
|
123 | 4567890123456789 | (123,4567890123456789)
|
|
4567890123456789 | 123 | (4567890123456789,123)
|
|
4567890123456789 | 4567890123456789 | (4567890123456789,4567890123456789)
|
|
4567890123456789 | -4567890123456789 | (4567890123456789,-4567890123456789)
|
|
(5 rows)
|
|
|
|
create view tt17v as select * from int8_tbl i where i in (values(i));
|
|
select * from tt17v;
|
|
q1 | q2
|
|
------------------+-------------------
|
|
123 | 456
|
|
123 | 4567890123456789
|
|
4567890123456789 | 123
|
|
4567890123456789 | 4567890123456789
|
|
4567890123456789 | -4567890123456789
|
|
(5 rows)
|
|
|
|
select pg_get_viewdef('tt17v', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------
|
|
SELECT i.q1, +
|
|
i.q2 +
|
|
FROM int8_tbl i +
|
|
WHERE (i.* IN ( VALUES (i.*::int8_tbl)));
|
|
(1 row)
|
|
|
|
select * from int8_tbl i where i.* in (values(i.*::int8_tbl));
|
|
q1 | q2
|
|
------------------+-------------------
|
|
123 | 456
|
|
123 | 4567890123456789
|
|
4567890123456789 | 123
|
|
4567890123456789 | 4567890123456789
|
|
4567890123456789 | -4567890123456789
|
|
(5 rows)
|
|
|
|
-- check unique-ification of overlength names
|
|
create view tt18v as
|
|
select * from int8_tbl xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxy
|
|
union all
|
|
select * from int8_tbl xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxz;
|
|
NOTICE: identifier "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxy" will be truncated to "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
|
|
NOTICE: identifier "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxz" will be truncated to "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
|
|
select pg_get_viewdef('tt18v', true);
|
|
pg_get_viewdef
|
|
-----------------------------------------------------------------------------------
|
|
SELECT xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.q1, +
|
|
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.q2 +
|
|
FROM int8_tbl xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx +
|
|
UNION ALL +
|
|
SELECT xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.q1, +
|
|
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.q2 +
|
|
FROM int8_tbl xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
|
|
(1 row)
|
|
|
|
explain (costs off) select * from tt18v;
|
|
QUERY PLAN
|
|
--------------------------------------------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on int8_tbl xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
|
|
-> Seq Scan on int8_tbl xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx_1
|
|
(3 rows)
|
|
|
|
-- check display of ScalarArrayOp with a sub-select
|
|
select 'foo'::text = any(array['abc','def','foo']::text[]);
|
|
?column?
|
|
----------
|
|
t
|
|
(1 row)
|
|
|
|
select 'foo'::text = any((select array['abc','def','foo']::text[])); -- fail
|
|
ERROR: operator does not exist: text = text[]
|
|
LINE 1: select 'foo'::text = any((select array['abc','def','foo']::t...
|
|
^
|
|
HINT: No operator matches the given name and argument types. You might need to add explicit type casts.
|
|
select 'foo'::text = any((select array['abc','def','foo']::text[])::text[]);
|
|
?column?
|
|
----------
|
|
t
|
|
(1 row)
|
|
|
|
create view tt19v as
|
|
select 'foo'::text = any(array['abc','def','foo']::text[]) c1,
|
|
'foo'::text = any((select array['abc','def','foo']::text[])::text[]) c2;
|
|
select pg_get_viewdef('tt19v', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------------------------------------------------------------------
|
|
SELECT 'foo'::text = ANY (ARRAY['abc'::text, 'def'::text, 'foo'::text]) AS c1, +
|
|
'foo'::text = ANY ((( SELECT ARRAY['abc'::text, 'def'::text, 'foo'::text] AS "array"))::text[]) AS c2;
|
|
(1 row)
|
|
|
|
-- check display of assorted RTE_FUNCTION expressions
|
|
create view tt20v as
|
|
select * from
|
|
coalesce(1,2) as c,
|
|
collation for ('x'::text) col,
|
|
current_date as d,
|
|
localtimestamp(3) as t,
|
|
cast(1+2 as int4) as i4,
|
|
cast(1+2 as int8) as i8;
|
|
select pg_get_viewdef('tt20v', true);
|
|
pg_get_viewdef
|
|
---------------------------------------------
|
|
SELECT c.c, +
|
|
col.col, +
|
|
d.d, +
|
|
t.t, +
|
|
i4.i4, +
|
|
i8.i8 +
|
|
FROM COALESCE(1, 2) c(c), +
|
|
pg_collation_for('x'::text) col(col), +
|
|
CURRENT_DATE d(d), +
|
|
LOCALTIMESTAMP(3) t(t), +
|
|
CAST(1 + 2 AS integer) i4(i4), +
|
|
CAST((1 + 2)::bigint AS bigint) i8(i8);
|
|
(1 row)
|
|
|
|
-- corner cases with empty join conditions
|
|
create view tt21v as
|
|
select * from tt5 natural inner join tt6;
|
|
select pg_get_viewdef('tt21v', true);
|
|
pg_get_viewdef
|
|
----------------------
|
|
SELECT tt5.a, +
|
|
tt5.b, +
|
|
tt5.cc, +
|
|
tt6.c, +
|
|
tt6.d +
|
|
FROM tt5 +
|
|
CROSS JOIN tt6;
|
|
(1 row)
|
|
|
|
create view tt22v as
|
|
select * from tt5 natural left join tt6;
|
|
select pg_get_viewdef('tt22v', true);
|
|
pg_get_viewdef
|
|
-----------------------------
|
|
SELECT tt5.a, +
|
|
tt5.b, +
|
|
tt5.cc, +
|
|
tt6.c, +
|
|
tt6.d +
|
|
FROM tt5 +
|
|
LEFT JOIN tt6 ON TRUE;
|
|
(1 row)
|
|
|
|
-- check handling of views with immediately-renamed columns
|
|
create view tt23v (col_a, col_b) as
|
|
select q1 as other_name1, q2 as other_name2 from int8_tbl
|
|
union
|
|
select 42, 43;
|
|
select pg_get_viewdef('tt23v', true);
|
|
pg_get_viewdef
|
|
-------------------------------
|
|
SELECT int8_tbl.q1 AS col_a,+
|
|
int8_tbl.q2 AS col_b +
|
|
FROM int8_tbl +
|
|
UNION +
|
|
SELECT 42 AS col_a, +
|
|
43 AS col_b;
|
|
(1 row)
|
|
|
|
select pg_get_ruledef(oid, true) from pg_rewrite
|
|
where ev_class = 'tt23v'::regclass and ev_type = '1';
|
|
pg_get_ruledef
|
|
-----------------------------------------------------------------
|
|
CREATE RULE "_RETURN" AS +
|
|
ON SELECT TO tt23v DO INSTEAD SELECT int8_tbl.q1 AS col_a,+
|
|
int8_tbl.q2 AS col_b +
|
|
FROM int8_tbl +
|
|
UNION +
|
|
SELECT 42 AS col_a, +
|
|
43 AS col_b;
|
|
(1 row)
|
|
|
|
-- test extraction of FieldSelect field names (get_name_for_var_field)
|
|
create view tt24v as
|
|
with cte as materialized (select r from (values(1,2),(3,4)) r)
|
|
select (r).column2 as col_a, (rr).column2 as col_b from
|
|
cte join (select rr from (values(1,7),(3,8)) rr limit 2) ss
|
|
on (r).column1 = (rr).column1;
|
|
select pg_get_viewdef('tt24v', true);
|
|
pg_get_viewdef
|
|
------------------------------------------------------------
|
|
WITH cte AS MATERIALIZED ( +
|
|
SELECT r.*::record AS r +
|
|
FROM ( VALUES (1,2), (3,4)) r +
|
|
) +
|
|
SELECT (cte.r).column2 AS col_a, +
|
|
(ss.rr).column2 AS col_b +
|
|
FROM cte +
|
|
JOIN ( SELECT rr.*::record AS rr +
|
|
FROM ( VALUES (1,7), (3,8)) rr +
|
|
LIMIT 2) ss ON (cte.r).column1 = (ss.rr).column1;
|
|
(1 row)
|
|
|
|
create view tt25v as
|
|
with cte as materialized (select pg_get_keywords() k)
|
|
select (k).word from cte;
|
|
select pg_get_viewdef('tt25v', true);
|
|
pg_get_viewdef
|
|
----------------------------------------
|
|
WITH cte AS MATERIALIZED ( +
|
|
SELECT pg_get_keywords() AS k+
|
|
) +
|
|
SELECT (cte.k).word AS word +
|
|
FROM cte;
|
|
(1 row)
|
|
|
|
-- also check cases seen only in EXPLAIN
|
|
explain (verbose, costs off)
|
|
select * from tt24v;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------------------
|
|
Hash Join
|
|
Output: (cte.r).column2, ((ROW("*VALUES*".column1, "*VALUES*".column2))).column2
|
|
Hash Cond: (((ROW("*VALUES*".column1, "*VALUES*".column2))).column1 = (cte.r).column1)
|
|
CTE cte
|
|
-> Values Scan on "*VALUES*_1"
|
|
Output: ROW("*VALUES*_1".column1, "*VALUES*_1".column2)
|
|
-> Limit
|
|
Output: (ROW("*VALUES*".column1, "*VALUES*".column2))
|
|
-> Values Scan on "*VALUES*"
|
|
Output: ROW("*VALUES*".column1, "*VALUES*".column2)
|
|
-> Hash
|
|
Output: cte.r
|
|
-> CTE Scan on cte
|
|
Output: cte.r
|
|
(14 rows)
|
|
|
|
explain (verbose, costs off)
|
|
select (r).column2 from (select r from (values(1,2),(3,4)) r limit 1) ss;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------
|
|
Subquery Scan on ss
|
|
Output: (ss.r).column2
|
|
-> Limit
|
|
Output: (ROW("*VALUES*".column1, "*VALUES*".column2))
|
|
-> Values Scan on "*VALUES*"
|
|
Output: ROW("*VALUES*".column1, "*VALUES*".column2)
|
|
(6 rows)
|
|
|
|
-- test pretty-print parenthesization rules, and SubLink deparsing
|
|
create view tt26v as
|
|
select x + y + z as c1,
|
|
(x * y) + z as c2,
|
|
x + (y * z) as c3,
|
|
(x + y) * z as c4,
|
|
x * (y + z) as c5,
|
|
x + (y + z) as c6,
|
|
x + (y # z) as c7,
|
|
(x > y) AND (y > z OR x > z) as c8,
|
|
(x > y) OR (y > z AND NOT (x > z)) as c9,
|
|
(x,y) <> ALL (values(1,2),(3,4)) as c10,
|
|
(x,y) <= ANY (values(1,2),(3,4)) as c11
|
|
from (values(1,2,3)) v(x,y,z);
|
|
select pg_get_viewdef('tt26v', true);
|
|
pg_get_viewdef
|
|
--------------------------------------------------------
|
|
SELECT v.x + v.y + v.z AS c1, +
|
|
v.x * v.y + v.z AS c2, +
|
|
v.x + v.y * v.z AS c3, +
|
|
(v.x + v.y) * v.z AS c4, +
|
|
v.x * (v.y + v.z) AS c5, +
|
|
v.x + (v.y + v.z) AS c6, +
|
|
v.x + (v.y # v.z) AS c7, +
|
|
v.x > v.y AND (v.y > v.z OR v.x > v.z) AS c8, +
|
|
v.x > v.y OR v.y > v.z AND NOT v.x > v.z AS c9, +
|
|
((v.x, v.y) <> ALL ( VALUES (1,2), (3,4))) AS c10,+
|
|
((v.x, v.y) <= ANY ( VALUES (1,2), (3,4))) AS c11 +
|
|
FROM ( VALUES (1,2,3)) v(x, y, z);
|
|
(1 row)
|
|
|
|
-- clean up all the random objects we made above
|
|
DROP SCHEMA temp_view_test CASCADE;
|
|
NOTICE: drop cascades to 27 other objects
|
|
DETAIL: drop cascades to table temp_view_test.base_table
|
|
drop cascades to view v2_temp
|
|
drop cascades to view v4_temp
|
|
drop cascades to view v6_temp
|
|
drop cascades to view v7_temp
|
|
drop cascades to view v10_temp
|
|
drop cascades to view v8_temp
|
|
drop cascades to view v9_temp
|
|
drop cascades to view v11_temp
|
|
drop cascades to view v12_temp
|
|
drop cascades to table temp_view_test.base_table2
|
|
drop cascades to view v5_temp
|
|
drop cascades to view temp_view_test.v1
|
|
drop cascades to view temp_view_test.v2
|
|
drop cascades to view temp_view_test.v3
|
|
drop cascades to view temp_view_test.v4
|
|
drop cascades to view temp_view_test.v5
|
|
drop cascades to view temp_view_test.v6
|
|
drop cascades to view temp_view_test.v7
|
|
drop cascades to view temp_view_test.v8
|
|
drop cascades to sequence temp_view_test.seq1
|
|
drop cascades to view temp_view_test.v9
|
|
drop cascades to table temp_view_test.tx1
|
|
drop cascades to view aliased_view_1
|
|
drop cascades to view aliased_view_2
|
|
drop cascades to view aliased_view_3
|
|
drop cascades to view aliased_view_4
|
|
DROP SCHEMA testviewschm2 CASCADE;
|
|
NOTICE: drop cascades to 67 other objects
|
|
DETAIL: drop cascades to table t1
|
|
drop cascades to view temporal1
|
|
drop cascades to view temporal2
|
|
drop cascades to view temporal3
|
|
drop cascades to view temporal4
|
|
drop cascades to table t2
|
|
drop cascades to view nontemp1
|
|
drop cascades to view nontemp2
|
|
drop cascades to view nontemp3
|
|
drop cascades to view nontemp4
|
|
drop cascades to table tbl1
|
|
drop cascades to table tbl2
|
|
drop cascades to table tbl3
|
|
drop cascades to table tbl4
|
|
drop cascades to view mytempview
|
|
drop cascades to view pubview
|
|
drop cascades to view mysecview1
|
|
drop cascades to view mysecview2
|
|
drop cascades to view mysecview3
|
|
drop cascades to view mysecview4
|
|
drop cascades to view unspecified_types
|
|
drop cascades to table tt1
|
|
drop cascades to table tx1
|
|
drop cascades to view view_of_joins
|
|
drop cascades to table tt2
|
|
drop cascades to table tt3
|
|
drop cascades to table tt4
|
|
drop cascades to view v1
|
|
drop cascades to view v1a
|
|
drop cascades to view v2
|
|
drop cascades to view v2a
|
|
drop cascades to view v3
|
|
drop cascades to table tt5
|
|
drop cascades to table tt6
|
|
drop cascades to view vv1
|
|
drop cascades to view v4
|
|
drop cascades to table tt7
|
|
drop cascades to table tt8
|
|
drop cascades to view vv2
|
|
drop cascades to view vv3
|
|
drop cascades to view vv4
|
|
drop cascades to table tt7a
|
|
drop cascades to table tt8a
|
|
drop cascades to view vv2a
|
|
drop cascades to table tt9
|
|
drop cascades to table tt10
|
|
drop cascades to view vv5
|
|
drop cascades to table tt11
|
|
drop cascades to table tt12
|
|
drop cascades to table tt13
|
|
drop cascades to view vv6
|
|
drop cascades to table tt14t
|
|
drop cascades to function tt14f()
|
|
drop cascades to view tt14v
|
|
drop cascades to type nestedcomposite
|
|
drop cascades to view tt15v
|
|
drop cascades to view tt16v
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drop cascades to view tt17v
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drop cascades to view tt18v
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drop cascades to view tt19v
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drop cascades to view tt20v
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drop cascades to view tt21v
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drop cascades to view tt22v
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drop cascades to view tt23v
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drop cascades to view tt24v
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drop cascades to view tt25v
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drop cascades to view tt26v
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