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Implement IF NOT EXIST for CREATE INDEX.

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Fabrízio de Royes Mello, reviewed by Marti Raudsepp, Adam Brightwell and me.
This commit is contained in:
Fujii Masao
2014-11-06 18:48:33 +09:00
parent 171c377a0a
commit 08309aaf74
11 changed files with 85 additions and 5 deletions
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10
src/test/regress/expected/create_index.out
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@ -6,6 +6,12 @@
-- BTREE
--
CREATE INDEX onek_unique1 ON onek USING btree(unique1 int4_ops);
CREATE INDEX IF NOT EXISTS onek_unique1 ON onek USING btree(unique1 int4_ops);
NOTICE: relation "onek_unique1" already exists, skipping
CREATE INDEX IF NOT EXISTS ON onek USING btree(unique1 int4_ops);
ERROR: syntax error at or near "ON"
LINE 1: CREATE INDEX IF NOT EXISTS ON onek USING btree(unique1 int4_...
^
CREATE INDEX onek_unique2 ON onek USING btree(unique2 int4_ops);
CREATE INDEX onek_hundred ON onek USING btree(hundred int4_ops);
CREATE INDEX onek_stringu1 ON onek USING btree(stringu1 name_ops);
@ -2290,10 +2296,14 @@ create unique index hash_f8_index_3 on hash_f8_heap(random) where seqno > 1000;
CREATE TABLE concur_heap (f1 text, f2 text);
-- empty table
CREATE INDEX CONCURRENTLY concur_index1 ON concur_heap(f2,f1);
CREATE INDEX CONCURRENTLY IF NOT EXISTS concur_index1 ON concur_heap(f2,f1);
NOTICE: relation "concur_index1" already exists, skipping
INSERT INTO concur_heap VALUES ('a','b');
INSERT INTO concur_heap VALUES ('b','b');
-- unique index
CREATE UNIQUE INDEX CONCURRENTLY concur_index2 ON concur_heap(f1);
CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS concur_index2 ON concur_heap(f1);
NOTICE: relation "concur_index2" already exists, skipping
-- check if constraint is set up properly to be enforced
INSERT INTO concur_heap VALUES ('b','x');
ERROR: duplicate key value violates unique constraint "concur_index2"

6
src/test/regress/sql/create_index.sql
View File

@ -8,6 +8,10 @@
--
CREATE INDEX onek_unique1 ON onek USING btree(unique1 int4_ops);
CREATE INDEX IF NOT EXISTS onek_unique1 ON onek USING btree(unique1 int4_ops);
CREATE INDEX IF NOT EXISTS ON onek USING btree(unique1 int4_ops);
CREATE INDEX onek_unique2 ON onek USING btree(unique2 int4_ops);
CREATE INDEX onek_hundred ON onek USING btree(hundred int4_ops);
@ -711,10 +715,12 @@ create unique index hash_f8_index_3 on hash_f8_heap(random) where seqno > 1000;
CREATE TABLE concur_heap (f1 text, f2 text);
-- empty table
CREATE INDEX CONCURRENTLY concur_index1 ON concur_heap(f2,f1);
CREATE INDEX CONCURRENTLY IF NOT EXISTS concur_index1 ON concur_heap(f2,f1);
INSERT INTO concur_heap VALUES ('a','b');
INSERT INTO concur_heap VALUES ('b','b');
-- unique index
CREATE UNIQUE INDEX CONCURRENTLY concur_index2 ON concur_heap(f1);
CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS concur_index2 ON concur_heap(f1);
-- check if constraint is set up properly to be enforced
INSERT INTO concur_heap VALUES ('b','x');
-- check if constraint is enforced properly at build time