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