80 lines
3.7 KiB
SQL
80 lines
3.7 KiB
SQL
CREATE TABLE test_replica_identity (
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id serial primary key,
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keya text not null,
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keyb text not null,
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nonkey text,
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CONSTRAINT test_replica_identity_unique_defer UNIQUE (keya, keyb) DEFERRABLE,
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CONSTRAINT test_replica_identity_unique_nondefer UNIQUE (keya, keyb)
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);
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CREATE TABLE test_replica_identity_othertable (id serial primary key);
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CREATE INDEX test_replica_identity_keyab ON test_replica_identity (keya, keyb);
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CREATE UNIQUE INDEX test_replica_identity_keyab_key ON test_replica_identity (keya, keyb);
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CREATE UNIQUE INDEX test_replica_identity_nonkey ON test_replica_identity (keya, nonkey);
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CREATE INDEX test_replica_identity_hash ON test_replica_identity USING hash (nonkey);
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CREATE UNIQUE INDEX test_replica_identity_expr ON test_replica_identity (keya, keyb, (3));
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CREATE UNIQUE INDEX test_replica_identity_partial ON test_replica_identity (keya, keyb) WHERE keyb != '3';
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-- default is 'd'/DEFAULT for user created tables
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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-- but 'none' for system tables
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SELECT relreplident FROM pg_class WHERE oid = 'pg_class'::regclass;
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SELECT relreplident FROM pg_class WHERE oid = 'pg_constraint'::regclass;
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----
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-- Make sure we detect ineligible indexes
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----
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-- fail, not unique
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_keyab;
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-- fail, not a candidate key, nullable column
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_nonkey;
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-- fail, hash indexes cannot do uniqueness
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_hash;
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-- fail, expression index
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_expr;
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-- fail, partial index
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_partial;
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-- fail, not our index
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_othertable_pkey;
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-- fail, deferrable
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_unique_defer;
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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----
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-- Make sure index cases succeeed
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----
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-- succeed, primary key
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_pkey;
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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\d test_replica_identity
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-- succeed, nondeferrable unique constraint over nonullable cols
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_unique_nondefer;
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-- succeed unique index over nonnullable cols
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_keyab_key;
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ALTER TABLE test_replica_identity REPLICA IDENTITY USING INDEX test_replica_identity_keyab_key;
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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\d test_replica_identity
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SELECT count(*) FROM pg_index WHERE indrelid = 'test_replica_identity'::regclass AND indisreplident;
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----
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-- Make sure non index cases work
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----
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ALTER TABLE test_replica_identity REPLICA IDENTITY DEFAULT;
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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SELECT count(*) FROM pg_index WHERE indrelid = 'test_replica_identity'::regclass AND indisreplident;
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ALTER TABLE test_replica_identity REPLICA IDENTITY FULL;
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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\d+ test_replica_identity
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ALTER TABLE test_replica_identity REPLICA IDENTITY NOTHING;
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SELECT relreplident FROM pg_class WHERE oid = 'test_replica_identity'::regclass;
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DROP TABLE test_replica_identity;
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DROP TABLE test_replica_identity_othertable;
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