181 lines
12 KiB
Plaintext
181 lines
12 KiB
Plaintext
-- Regression tests for prepareable statements. We query the content
|
|
-- of the pg_prepared_statements view as prepared statements are
|
|
-- created and removed.
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements;
|
|
name | statement | parameter_types
|
|
------+-----------+-----------------
|
|
(0 rows)
|
|
|
|
PREPARE q1 AS SELECT 1 AS a;
|
|
EXECUTE q1;
|
|
a
|
|
---
|
|
1
|
|
(1 row)
|
|
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements;
|
|
name | statement | parameter_types
|
|
------+------------------------------+-----------------
|
|
q1 | PREPARE q1 AS SELECT 1 AS a; | {}
|
|
(1 row)
|
|
|
|
-- should fail
|
|
PREPARE q1 AS SELECT 2;
|
|
ERROR: prepared statement "q1" already exists
|
|
-- should succeed
|
|
DEALLOCATE q1;
|
|
PREPARE q1 AS SELECT 2;
|
|
EXECUTE q1;
|
|
?column?
|
|
----------
|
|
2
|
|
(1 row)
|
|
|
|
PREPARE q2 AS SELECT 2 AS b;
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements;
|
|
name | statement | parameter_types
|
|
------+------------------------------+-----------------
|
|
q1 | PREPARE q1 AS SELECT 2; | {}
|
|
q2 | PREPARE q2 AS SELECT 2 AS b; | {}
|
|
(2 rows)
|
|
|
|
-- sql92 syntax
|
|
DEALLOCATE PREPARE q1;
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements;
|
|
name | statement | parameter_types
|
|
------+------------------------------+-----------------
|
|
q2 | PREPARE q2 AS SELECT 2 AS b; | {}
|
|
(1 row)
|
|
|
|
DEALLOCATE PREPARE q2;
|
|
-- the view should return the empty set again
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements;
|
|
name | statement | parameter_types
|
|
------+-----------+-----------------
|
|
(0 rows)
|
|
|
|
-- parameterized queries
|
|
PREPARE q2(text) AS
|
|
SELECT datname, datistemplate, datallowconn
|
|
FROM pg_database WHERE datname = $1;
|
|
EXECUTE q2('postgres');
|
|
datname | datistemplate | datallowconn
|
|
----------+---------------+--------------
|
|
postgres | f | t
|
|
(1 row)
|
|
|
|
PREPARE q3(text, int, float, boolean, oid, smallint) AS
|
|
SELECT * FROM tenk1 WHERE string4 = $1 AND (four = $2 OR
|
|
ten = $3::bigint OR true = $4 OR oid = $5 OR odd = $6::int)
|
|
ORDER BY unique1;
|
|
EXECUTE q3('AAAAxx', 5::smallint, 10.5::float, false, 500::oid, 4::bigint);
|
|
unique1 | unique2 | two | four | ten | twenty | hundred | thousand | twothousand | fivethous | tenthous | odd | even | stringu1 | stringu2 | string4
|
|
---------+---------+-----+------+-----+--------+---------+----------+-------------+-----------+----------+-----+------+----------+----------+---------
|
|
2 | 2716 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 5 | CAAAAA | MAEAAA | AAAAxx
|
|
102 | 612 | 0 | 2 | 2 | 2 | 2 | 102 | 102 | 102 | 102 | 4 | 5 | YDAAAA | OXAAAA | AAAAxx
|
|
802 | 2908 | 0 | 2 | 2 | 2 | 2 | 802 | 802 | 802 | 802 | 4 | 5 | WEAAAA | WHEAAA | AAAAxx
|
|
902 | 1104 | 0 | 2 | 2 | 2 | 2 | 902 | 902 | 902 | 902 | 4 | 5 | SIAAAA | MQBAAA | AAAAxx
|
|
1002 | 2580 | 0 | 2 | 2 | 2 | 2 | 2 | 1002 | 1002 | 1002 | 4 | 5 | OMAAAA | GVDAAA | AAAAxx
|
|
1602 | 8148 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 1602 | 1602 | 4 | 5 | QJAAAA | KBMAAA | AAAAxx
|
|
1702 | 7940 | 0 | 2 | 2 | 2 | 2 | 702 | 1702 | 1702 | 1702 | 4 | 5 | MNAAAA | KTLAAA | AAAAxx
|
|
2102 | 6184 | 0 | 2 | 2 | 2 | 2 | 102 | 102 | 2102 | 2102 | 4 | 5 | WCAAAA | WDJAAA | AAAAxx
|
|
2202 | 8028 | 0 | 2 | 2 | 2 | 2 | 202 | 202 | 2202 | 2202 | 4 | 5 | SGAAAA | UWLAAA | AAAAxx
|
|
2302 | 7112 | 0 | 2 | 2 | 2 | 2 | 302 | 302 | 2302 | 2302 | 4 | 5 | OKAAAA | ONKAAA | AAAAxx
|
|
2902 | 6816 | 0 | 2 | 2 | 2 | 2 | 902 | 902 | 2902 | 2902 | 4 | 5 | QHAAAA | ECKAAA | AAAAxx
|
|
3202 | 7128 | 0 | 2 | 2 | 2 | 2 | 202 | 1202 | 3202 | 3202 | 4 | 5 | ETAAAA | EOKAAA | AAAAxx
|
|
3902 | 9224 | 0 | 2 | 2 | 2 | 2 | 902 | 1902 | 3902 | 3902 | 4 | 5 | CUAAAA | UQNAAA | AAAAxx
|
|
4102 | 7676 | 0 | 2 | 2 | 2 | 2 | 102 | 102 | 4102 | 4102 | 4 | 5 | UBAAAA | GJLAAA | AAAAxx
|
|
4202 | 6628 | 0 | 2 | 2 | 2 | 2 | 202 | 202 | 4202 | 4202 | 4 | 5 | QFAAAA | YUJAAA | AAAAxx
|
|
4502 | 412 | 0 | 2 | 2 | 2 | 2 | 502 | 502 | 4502 | 4502 | 4 | 5 | ERAAAA | WPAAAA | AAAAxx
|
|
4702 | 2520 | 0 | 2 | 2 | 2 | 2 | 702 | 702 | 4702 | 4702 | 4 | 5 | WYAAAA | YSDAAA | AAAAxx
|
|
4902 | 1600 | 0 | 2 | 2 | 2 | 2 | 902 | 902 | 4902 | 4902 | 4 | 5 | OGAAAA | OJCAAA | AAAAxx
|
|
5602 | 8796 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 602 | 5602 | 4 | 5 | MHAAAA | IANAAA | AAAAxx
|
|
6002 | 8932 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 1002 | 6002 | 4 | 5 | WWAAAA | OFNAAA | AAAAxx
|
|
6402 | 3808 | 0 | 2 | 2 | 2 | 2 | 402 | 402 | 1402 | 6402 | 4 | 5 | GMAAAA | MQFAAA | AAAAxx
|
|
7602 | 1040 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 2602 | 7602 | 4 | 5 | KGAAAA | AOBAAA | AAAAxx
|
|
7802 | 7508 | 0 | 2 | 2 | 2 | 2 | 802 | 1802 | 2802 | 7802 | 4 | 5 | COAAAA | UCLAAA | AAAAxx
|
|
8002 | 9980 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 3002 | 8002 | 4 | 5 | UVAAAA | WTOAAA | AAAAxx
|
|
8302 | 7800 | 0 | 2 | 2 | 2 | 2 | 302 | 302 | 3302 | 8302 | 4 | 5 | IHAAAA | AOLAAA | AAAAxx
|
|
8402 | 5708 | 0 | 2 | 2 | 2 | 2 | 402 | 402 | 3402 | 8402 | 4 | 5 | ELAAAA | OLIAAA | AAAAxx
|
|
8602 | 5440 | 0 | 2 | 2 | 2 | 2 | 602 | 602 | 3602 | 8602 | 4 | 5 | WSAAAA | GBIAAA | AAAAxx
|
|
9502 | 1812 | 0 | 2 | 2 | 2 | 2 | 502 | 1502 | 4502 | 9502 | 4 | 5 | MBAAAA | SRCAAA | AAAAxx
|
|
9602 | 9972 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 4602 | 9602 | 4 | 5 | IFAAAA | OTOAAA | AAAAxx
|
|
(29 rows)
|
|
|
|
-- too few params
|
|
EXECUTE q3('bool');
|
|
ERROR: wrong number of parameters for prepared statement "q3"
|
|
DETAIL: Expected 6 parameters but got 1.
|
|
-- too many params
|
|
EXECUTE q3('bytea', 5::smallint, 10.5::float, false, 500::oid, 4::bigint, true);
|
|
ERROR: wrong number of parameters for prepared statement "q3"
|
|
DETAIL: Expected 6 parameters but got 7.
|
|
-- wrong param types
|
|
EXECUTE q3(5::smallint, 10.5::float, false, 500::oid, 4::bigint, 'bytea');
|
|
ERROR: parameter $3 of type boolean cannot be coerced to the expected type double precision
|
|
HINT: You will need to rewrite or cast the expression.
|
|
-- invalid type
|
|
PREPARE q4(nonexistenttype) AS SELECT $1;
|
|
ERROR: type "nonexistenttype" does not exist
|
|
LINE 1: PREPARE q4(nonexistenttype) AS SELECT $1;
|
|
^
|
|
-- create table as execute
|
|
PREPARE q5(int, text) AS
|
|
SELECT * FROM tenk1 WHERE unique1 = $1 OR stringu1 = $2
|
|
ORDER BY unique1;
|
|
CREATE TEMPORARY TABLE q5_prep_results AS EXECUTE q5(200, 'DTAAAA');
|
|
SELECT * FROM q5_prep_results;
|
|
unique1 | unique2 | two | four | ten | twenty | hundred | thousand | twothousand | fivethous | tenthous | odd | even | stringu1 | stringu2 | string4
|
|
---------+---------+-----+------+-----+--------+---------+----------+-------------+-----------+----------+-----+------+----------+----------+---------
|
|
200 | 9441 | 0 | 0 | 0 | 0 | 0 | 200 | 200 | 200 | 200 | 0 | 1 | SHAAAA | DZNAAA | HHHHxx
|
|
497 | 9092 | 1 | 1 | 7 | 17 | 97 | 497 | 497 | 497 | 497 | 194 | 195 | DTAAAA | SLNAAA | AAAAxx
|
|
1173 | 6699 | 1 | 1 | 3 | 13 | 73 | 173 | 1173 | 1173 | 1173 | 146 | 147 | DTAAAA | RXJAAA | VVVVxx
|
|
1849 | 8143 | 1 | 1 | 9 | 9 | 49 | 849 | 1849 | 1849 | 1849 | 98 | 99 | DTAAAA | FBMAAA | VVVVxx
|
|
2525 | 64 | 1 | 1 | 5 | 5 | 25 | 525 | 525 | 2525 | 2525 | 50 | 51 | DTAAAA | MCAAAA | AAAAxx
|
|
3201 | 7309 | 1 | 1 | 1 | 1 | 1 | 201 | 1201 | 3201 | 3201 | 2 | 3 | DTAAAA | DVKAAA | HHHHxx
|
|
3877 | 4060 | 1 | 1 | 7 | 17 | 77 | 877 | 1877 | 3877 | 3877 | 154 | 155 | DTAAAA | EAGAAA | AAAAxx
|
|
4553 | 4113 | 1 | 1 | 3 | 13 | 53 | 553 | 553 | 4553 | 4553 | 106 | 107 | DTAAAA | FCGAAA | HHHHxx
|
|
5229 | 6407 | 1 | 1 | 9 | 9 | 29 | 229 | 1229 | 229 | 5229 | 58 | 59 | DTAAAA | LMJAAA | VVVVxx
|
|
5905 | 9537 | 1 | 1 | 5 | 5 | 5 | 905 | 1905 | 905 | 5905 | 10 | 11 | DTAAAA | VCOAAA | HHHHxx
|
|
6581 | 4686 | 1 | 1 | 1 | 1 | 81 | 581 | 581 | 1581 | 6581 | 162 | 163 | DTAAAA | GYGAAA | OOOOxx
|
|
7257 | 1895 | 1 | 1 | 7 | 17 | 57 | 257 | 1257 | 2257 | 7257 | 114 | 115 | DTAAAA | XUCAAA | VVVVxx
|
|
7933 | 4514 | 1 | 1 | 3 | 13 | 33 | 933 | 1933 | 2933 | 7933 | 66 | 67 | DTAAAA | QRGAAA | OOOOxx
|
|
8609 | 5918 | 1 | 1 | 9 | 9 | 9 | 609 | 609 | 3609 | 8609 | 18 | 19 | DTAAAA | QTIAAA | OOOOxx
|
|
9285 | 8469 | 1 | 1 | 5 | 5 | 85 | 285 | 1285 | 4285 | 9285 | 170 | 171 | DTAAAA | TNMAAA | HHHHxx
|
|
9961 | 2058 | 1 | 1 | 1 | 1 | 61 | 961 | 1961 | 4961 | 9961 | 122 | 123 | DTAAAA | EBDAAA | OOOOxx
|
|
(16 rows)
|
|
|
|
-- unknown or unspecified parameter types: should succeed
|
|
PREPARE q6 AS
|
|
SELECT * FROM tenk1 WHERE unique1 = $1 AND stringu1 = $2;
|
|
PREPARE q7(unknown) AS
|
|
SELECT * FROM road WHERE thepath = $1;
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements
|
|
ORDER BY name;
|
|
name | statement | parameter_types
|
|
------+---------------------------------------------------------------------+--------------------------------------------------------
|
|
q2 | PREPARE q2(text) AS +| {text}
|
|
| SELECT datname, datistemplate, datallowconn +|
|
|
| FROM pg_database WHERE datname = $1; |
|
|
q3 | PREPARE q3(text, int, float, boolean, oid, smallint) AS +| {text,integer,"double precision",boolean,oid,smallint}
|
|
| SELECT * FROM tenk1 WHERE string4 = $1 AND (four = $2 OR +|
|
|
| ten = $3::bigint OR true = $4 OR oid = $5 OR odd = $6::int)+|
|
|
| ORDER BY unique1; |
|
|
q5 | PREPARE q5(int, text) AS +| {integer,text}
|
|
| SELECT * FROM tenk1 WHERE unique1 = $1 OR stringu1 = $2 +|
|
|
| ORDER BY unique1; |
|
|
q6 | PREPARE q6 AS +| {integer,name}
|
|
| SELECT * FROM tenk1 WHERE unique1 = $1 AND stringu1 = $2; |
|
|
q7 | PREPARE q7(unknown) AS +| {path}
|
|
| SELECT * FROM road WHERE thepath = $1; |
|
|
(5 rows)
|
|
|
|
-- test DEALLOCATE ALL;
|
|
DEALLOCATE ALL;
|
|
SELECT name, statement, parameter_types FROM pg_prepared_statements
|
|
ORDER BY name;
|
|
name | statement | parameter_types
|
|
------+-----------+-----------------
|
|
(0 rows)
|
|
|