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Revise rule-printing routines to use expandable StringInfo buffers, so that 

they have no hardwired limit on the length of a rule's text.  Fix a couple
of minor bugs in passing --- deparsed UPDATE queries didn't have quotes
around relation name, and quotes and backslashes in constant values weren't
backslash-quoted.
This commit is contained in:
Tom Lane 1999-10-02 01:08:05 +00:00
parent 4e9073855c
commit cd243d27ce
2 changed files with 369 additions and 431 deletions
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742
src/backend/utils/adt/ruleutils.c
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File diff suppressed because it is too large Load Diff

58
src/test/regress/expected/rules.out
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@ -1091,34 +1091,34 @@ toyemp |SELECT "emp"."name", "emp"."age", "emp"."location", ('12'::"i
QUERY: SELECT tablename, rulename, definition FROM pg_rules
ORDER BY tablename, rulename;
tablename |rulename |definition
-------------+---------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
rtest_emp |rtest_emp_del |CREATE RULE "rtest_emp_del" AS ON DELETE TO "rtest_emp" DO INSERT INTO "rtest_emplog" ("ename", "who", "action", "newsal", "oldsal") VALUES (old."ename", "getpgusername"(), 'fired'::"bpchar", '$0.00'::"money", old."salary");
rtest_emp |rtest_emp_ins |CREATE RULE "rtest_emp_ins" AS ON INSERT TO "rtest_emp" DO INSERT INTO "rtest_emplog" ("ename", "who", "action", "newsal", "oldsal") VALUES (new."ename", "getpgusername"(), 'hired'::"bpchar", new."salary", '$0.00'::"money");
rtest_emp |rtest_emp_upd |CREATE RULE "rtest_emp_upd" AS ON UPDATE TO "rtest_emp" WHERE (new."salary" <> old."salary") DO INSERT INTO "rtest_emplog" ("ename", "who", "action", "newsal", "oldsal") VALUES (new."ename", "getpgusername"(), 'honored'::"bpchar", new."salary", old."salary");
rtest_nothn1 |rtest_nothn_r1 |CREATE RULE "rtest_nothn_r1" AS ON INSERT TO "rtest_nothn1" WHERE ((new."a" >= '10'::"int4") AND (new."a" < '20'::"int4")) DO INSTEAD SELECT '1'::"int4";
rtest_nothn1 |rtest_nothn_r2 |CREATE RULE "rtest_nothn_r2" AS ON INSERT TO "rtest_nothn1" WHERE ((new."a" >= '30'::"int4") AND (new."a" < '40'::"int4")) DO INSTEAD NOTHING;
rtest_nothn2 |rtest_nothn_r3 |CREATE RULE "rtest_nothn_r3" AS ON INSERT TO "rtest_nothn2" WHERE (new."a" >= '100'::"int4") DO INSTEAD INSERT INTO "rtest_nothn3" ("a", "b") VALUES (new."a", new."b");
rtest_nothn2 |rtest_nothn_r4 |CREATE RULE "rtest_nothn_r4" AS ON INSERT TO "rtest_nothn2" DO INSTEAD NOTHING;
rtest_order1 |rtest_order_r1 |CREATE RULE "rtest_order_r1" AS ON INSERT TO "rtest_order1" DO INSTEAD INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 1 - this should run 3rd or 4th'::"text");
rtest_order1 |rtest_order_r2 |CREATE RULE "rtest_order_r2" AS ON INSERT TO "rtest_order1" DO INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 2 - this should run 1st'::"text");
rtest_order1 |rtest_order_r3 |CREATE RULE "rtest_order_r3" AS ON INSERT TO "rtest_order1" DO INSTEAD INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 3 - this should run 3rd or 4th'::"text");
rtest_order1 |rtest_order_r4 |CREATE RULE "rtest_order_r4" AS ON INSERT TO "rtest_order1" WHERE ("rtest_order2"."a" < '100'::"int4") DO INSTEAD INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 4 - this should run 2nd'::"text");
rtest_person |rtest_pers_del |CREATE RULE "rtest_pers_del" AS ON DELETE TO "rtest_person" DO DELETE FROM "rtest_admin" WHERE ("rtest_admin"."pname" = old."pname");
rtest_person |rtest_pers_upd |CREATE RULE "rtest_pers_upd" AS ON UPDATE TO "rtest_person" DO UPDATE rtest_admin SET "pname" = new."pname" WHERE ("rtest_admin"."pname" = old."pname");
rtest_system |rtest_sys_del |CREATE RULE "rtest_sys_del" AS ON DELETE TO "rtest_system" DO (DELETE FROM "rtest_interface" WHERE ("rtest_interface"."sysname" = old."sysname"); DELETE FROM "rtest_admin" WHERE ("rtest_admin"."sysname" = old."sysname"); );
rtest_system |rtest_sys_upd |CREATE RULE "rtest_sys_upd" AS ON UPDATE TO "rtest_system" DO (UPDATE rtest_interface SET "sysname" = new."sysname" WHERE ("rtest_interface"."sysname" = old."sysname"); UPDATE rtest_admin SET "sysname" = new."sysname" WHERE ("rtest_admin"."sysname" = old."sysname"); );
rtest_t4 |rtest_t4_ins1 |CREATE RULE "rtest_t4_ins1" AS ON INSERT TO "rtest_t4" WHERE ((new."a" >= '10'::"int4") AND (new."a" < '20'::"int4")) DO INSTEAD INSERT INTO "rtest_t5" ("a", "b") VALUES (new."a", new."b");
rtest_t4 |rtest_t4_ins2 |CREATE RULE "rtest_t4_ins2" AS ON INSERT TO "rtest_t4" WHERE ((new."a" >= '20'::"int4") AND (new."a" < '30'::"int4")) DO INSERT INTO "rtest_t6" ("a", "b") VALUES (new."a", new."b");
rtest_t5 |rtest_t5_ins |CREATE RULE "rtest_t5_ins" AS ON INSERT TO "rtest_t5" WHERE (new."a" > '15'::"int4") DO INSERT INTO "rtest_t7" ("a", "b") VALUES (new."a", new."b");
rtest_t6 |rtest_t6_ins |CREATE RULE "rtest_t6_ins" AS ON INSERT TO "rtest_t6" WHERE (new."a" > '25'::"int4") DO INSTEAD INSERT INTO "rtest_t8" ("a", "b") VALUES (new."a", new."b");
rtest_v1 |rtest_v1_del |CREATE RULE "rtest_v1_del" AS ON DELETE TO "rtest_v1" DO INSTEAD DELETE FROM "rtest_t1" WHERE ("rtest_t1"."a" = old."a");
rtest_v1 |rtest_v1_ins |CREATE RULE "rtest_v1_ins" AS ON INSERT TO "rtest_v1" DO INSTEAD INSERT INTO "rtest_t1" ("a", "b") VALUES (new."a", new."b");
rtest_v1 |rtest_v1_upd |CREATE RULE "rtest_v1_upd" AS ON UPDATE TO "rtest_v1" DO INSTEAD UPDATE rtest_t1 SET "a" = new."a", "b" = new."b" WHERE ("rtest_t1"."a" = old."a");
shoelace |shoelace_del |CREATE RULE "shoelace_del" AS ON DELETE TO "shoelace" DO INSTEAD DELETE FROM "shoelace_data" WHERE ("shoelace_data"."sl_name" = old."sl_name");
shoelace |shoelace_ins |CREATE RULE "shoelace_ins" AS ON INSERT TO "shoelace" DO INSTEAD INSERT INTO "shoelace_data" ("sl_name", "sl_avail", "sl_color", "sl_len", "sl_unit") VALUES (new."sl_name", new."sl_avail", new."sl_color", new."sl_len", new."sl_unit");
shoelace |shoelace_upd |CREATE RULE "shoelace_upd" AS ON UPDATE TO "shoelace" DO INSTEAD UPDATE shoelace_data SET "sl_name" = new."sl_name", "sl_avail" = new."sl_avail", "sl_color" = new."sl_color", "sl_len" = new."sl_len", "sl_unit" = new."sl_unit" WHERE ("shoelace_data"."sl_name" = old."sl_name");
shoelace_data|log_shoelace |CREATE RULE "log_shoelace" AS ON UPDATE TO "shoelace_data" WHERE (new."sl_avail" <> old."sl_avail") DO INSERT INTO "shoelace_log" ("sl_name", "sl_avail", "log_who", "log_when") VALUES (new."sl_name", new."sl_avail", 'Al Bundy'::"name", 'epoch'::"datetime");
shoelace_ok |shoelace_ok_ins|CREATE RULE "shoelace_ok_ins" AS ON INSERT TO "shoelace_ok" DO INSTEAD UPDATE shoelace SET "sl_avail" = ("shoelace"."sl_avail" + new."ok_quant") WHERE ("shoelace"."sl_name" = new."ok_name");
tablename |rulename |definition
-------------+---------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
rtest_emp |rtest_emp_del |CREATE RULE "rtest_emp_del" AS ON DELETE TO "rtest_emp" DO INSERT INTO "rtest_emplog" ("ename", "who", "action", "newsal", "oldsal") VALUES (old."ename", "getpgusername"(), 'fired'::"bpchar", '$0.00'::"money", old."salary");
rtest_emp |rtest_emp_ins |CREATE RULE "rtest_emp_ins" AS ON INSERT TO "rtest_emp" DO INSERT INTO "rtest_emplog" ("ename", "who", "action", "newsal", "oldsal") VALUES (new."ename", "getpgusername"(), 'hired'::"bpchar", new."salary", '$0.00'::"money");
rtest_emp |rtest_emp_upd |CREATE RULE "rtest_emp_upd" AS ON UPDATE TO "rtest_emp" WHERE (new."salary" <> old."salary") DO INSERT INTO "rtest_emplog" ("ename", "who", "action", "newsal", "oldsal") VALUES (new."ename", "getpgusername"(), 'honored'::"bpchar", new."salary", old."salary");
rtest_nothn1 |rtest_nothn_r1 |CREATE RULE "rtest_nothn_r1" AS ON INSERT TO "rtest_nothn1" WHERE ((new."a" >= '10'::"int4") AND (new."a" < '20'::"int4")) DO INSTEAD SELECT '1'::"int4";
rtest_nothn1 |rtest_nothn_r2 |CREATE RULE "rtest_nothn_r2" AS ON INSERT TO "rtest_nothn1" WHERE ((new."a" >= '30'::"int4") AND (new."a" < '40'::"int4")) DO INSTEAD NOTHING;
rtest_nothn2 |rtest_nothn_r3 |CREATE RULE "rtest_nothn_r3" AS ON INSERT TO "rtest_nothn2" WHERE (new."a" >= '100'::"int4") DO INSTEAD INSERT INTO "rtest_nothn3" ("a", "b") VALUES (new."a", new."b");
rtest_nothn2 |rtest_nothn_r4 |CREATE RULE "rtest_nothn_r4" AS ON INSERT TO "rtest_nothn2" DO INSTEAD NOTHING;
rtest_order1 |rtest_order_r1 |CREATE RULE "rtest_order_r1" AS ON INSERT TO "rtest_order1" DO INSTEAD INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 1 - this should run 3rd or 4th'::"text");
rtest_order1 |rtest_order_r2 |CREATE RULE "rtest_order_r2" AS ON INSERT TO "rtest_order1" DO INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 2 - this should run 1st'::"text");
rtest_order1 |rtest_order_r3 |CREATE RULE "rtest_order_r3" AS ON INSERT TO "rtest_order1" DO INSTEAD INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 3 - this should run 3rd or 4th'::"text");
rtest_order1 |rtest_order_r4 |CREATE RULE "rtest_order_r4" AS ON INSERT TO "rtest_order1" WHERE ("rtest_order2"."a" < '100'::"int4") DO INSTEAD INSERT INTO "rtest_order2" ("a", "b", "c") VALUES (new."a", "nextval"('rtest_seq'::"text"), 'rule 4 - this should run 2nd'::"text");
rtest_person |rtest_pers_del |CREATE RULE "rtest_pers_del" AS ON DELETE TO "rtest_person" DO DELETE FROM "rtest_admin" WHERE ("rtest_admin"."pname" = old."pname");
rtest_person |rtest_pers_upd |CREATE RULE "rtest_pers_upd" AS ON UPDATE TO "rtest_person" DO UPDATE "rtest_admin" SET "pname" = new."pname" WHERE ("rtest_admin"."pname" = old."pname");
rtest_system |rtest_sys_del |CREATE RULE "rtest_sys_del" AS ON DELETE TO "rtest_system" DO (DELETE FROM "rtest_interface" WHERE ("rtest_interface"."sysname" = old."sysname"); DELETE FROM "rtest_admin" WHERE ("rtest_admin"."sysname" = old."sysname"); );
rtest_system |rtest_sys_upd |CREATE RULE "rtest_sys_upd" AS ON UPDATE TO "rtest_system" DO (UPDATE "rtest_interface" SET "sysname" = new."sysname" WHERE ("rtest_interface"."sysname" = old."sysname"); UPDATE "rtest_admin" SET "sysname" = new."sysname" WHERE ("rtest_admin"."sysname" = old."sysname"); );
rtest_t4 |rtest_t4_ins1 |CREATE RULE "rtest_t4_ins1" AS ON INSERT TO "rtest_t4" WHERE ((new."a" >= '10'::"int4") AND (new."a" < '20'::"int4")) DO INSTEAD INSERT INTO "rtest_t5" ("a", "b") VALUES (new."a", new."b");
rtest_t4 |rtest_t4_ins2 |CREATE RULE "rtest_t4_ins2" AS ON INSERT TO "rtest_t4" WHERE ((new."a" >= '20'::"int4") AND (new."a" < '30'::"int4")) DO INSERT INTO "rtest_t6" ("a", "b") VALUES (new."a", new."b");
rtest_t5 |rtest_t5_ins |CREATE RULE "rtest_t5_ins" AS ON INSERT TO "rtest_t5" WHERE (new."a" > '15'::"int4") DO INSERT INTO "rtest_t7" ("a", "b") VALUES (new."a", new."b");
rtest_t6 |rtest_t6_ins |CREATE RULE "rtest_t6_ins" AS ON INSERT TO "rtest_t6" WHERE (new."a" > '25'::"int4") DO INSTEAD INSERT INTO "rtest_t8" ("a", "b") VALUES (new."a", new."b");
rtest_v1 |rtest_v1_del |CREATE RULE "rtest_v1_del" AS ON DELETE TO "rtest_v1" DO INSTEAD DELETE FROM "rtest_t1" WHERE ("rtest_t1"."a" = old."a");
rtest_v1 |rtest_v1_ins |CREATE RULE "rtest_v1_ins" AS ON INSERT TO "rtest_v1" DO INSTEAD INSERT INTO "rtest_t1" ("a", "b") VALUES (new."a", new."b");
rtest_v1 |rtest_v1_upd |CREATE RULE "rtest_v1_upd" AS ON UPDATE TO "rtest_v1" DO INSTEAD UPDATE "rtest_t1" SET "a" = new."a", "b" = new."b" WHERE ("rtest_t1"."a" = old."a");
shoelace |shoelace_del |CREATE RULE "shoelace_del" AS ON DELETE TO "shoelace" DO INSTEAD DELETE FROM "shoelace_data" WHERE ("shoelace_data"."sl_name" = old."sl_name");
shoelace |shoelace_ins |CREATE RULE "shoelace_ins" AS ON INSERT TO "shoelace" DO INSTEAD INSERT INTO "shoelace_data" ("sl_name", "sl_avail", "sl_color", "sl_len", "sl_unit") VALUES (new."sl_name", new."sl_avail", new."sl_color", new."sl_len", new."sl_unit");
shoelace |shoelace_upd |CREATE RULE "shoelace_upd" AS ON UPDATE TO "shoelace" DO INSTEAD UPDATE "shoelace_data" SET "sl_name" = new."sl_name", "sl_avail" = new."sl_avail", "sl_color" = new."sl_color", "sl_len" = new."sl_len", "sl_unit" = new."sl_unit" WHERE ("shoelace_data"."sl_name" = old."sl_name");
shoelace_data|log_shoelace |CREATE RULE "log_shoelace" AS ON UPDATE TO "shoelace_data" WHERE (new."sl_avail" <> old."sl_avail") DO INSERT INTO "shoelace_log" ("sl_name", "sl_avail", "log_who", "log_when") VALUES (new."sl_name", new."sl_avail", 'Al Bundy'::"name", 'epoch'::"datetime");
shoelace_ok |shoelace_ok_ins|CREATE RULE "shoelace_ok_ins" AS ON INSERT TO "shoelace_ok" DO INSTEAD UPDATE "shoelace" SET "sl_avail" = ("shoelace"."sl_avail" + new."ok_quant") WHERE ("shoelace"."sl_name" = new."ok_name");
(27 rows)