Shorten warning about hash creation
Also document that PITR is also affected.
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@ -474,7 +474,8 @@ Indexes:
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Also, changes to hash indexes are not replicated over streaming or
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Also, changes to hash indexes are not replicated over streaming or
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file-based replication after the initial base backup, so they
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file-based replication after the initial base backup, so they
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give wrong answers to queries that subsequently use them.
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give wrong answers to queries that subsequently use them.
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For these reasons, hash index use is presently discouraged.
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Hash indexes are also not properly restored during point-in-time
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recovery. For these reasons, hash index use is presently discouraged.
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</para>
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</para>
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</caution>
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</caution>
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@ -491,7 +491,7 @@ DefineIndex(Oid relationId,
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if (strcmp(accessMethodName, "hash") == 0)
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if (strcmp(accessMethodName, "hash") == 0)
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ereport(WARNING,
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ereport(WARNING,
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(errmsg("hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers")));
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(errmsg("hash indexes are not WAL-logged and their use is discouraged")));
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if (stmt->unique && !accessMethodForm->amcanunique)
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if (stmt->unique && !accessMethodForm->amcanunique)
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ereport(ERROR,
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ereport(ERROR,
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@ -2238,13 +2238,13 @@ DROP TABLE array_gin_test;
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-- HASH
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-- HASH
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--
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--
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CREATE INDEX hash_i4_index ON hash_i4_heap USING hash (random int4_ops);
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CREATE INDEX hash_i4_index ON hash_i4_heap USING hash (random int4_ops);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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CREATE INDEX hash_name_index ON hash_name_heap USING hash (random name_ops);
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CREATE INDEX hash_name_index ON hash_name_heap USING hash (random name_ops);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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CREATE INDEX hash_txt_index ON hash_txt_heap USING hash (random text_ops);
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CREATE INDEX hash_txt_index ON hash_txt_heap USING hash (random text_ops);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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CREATE INDEX hash_f8_index ON hash_f8_heap USING hash (random float8_ops);
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CREATE INDEX hash_f8_index ON hash_f8_heap USING hash (random float8_ops);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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-- CREATE INDEX hash_ovfl_index ON hash_ovfl_heap USING hash (x int4_ops);
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-- CREATE INDEX hash_ovfl_index ON hash_ovfl_heap USING hash (x int4_ops);
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--
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--
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-- Test functional index
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-- Test functional index
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@ -383,7 +383,7 @@ DROP INDEX enumtest_btree;
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-- Hash index / opclass with the = operator
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-- Hash index / opclass with the = operator
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--
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--
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CREATE INDEX enumtest_hash ON enumtest USING hash (col);
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CREATE INDEX enumtest_hash ON enumtest USING hash (col);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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SELECT * FROM enumtest WHERE col = 'orange';
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SELECT * FROM enumtest WHERE col = 'orange';
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col
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col
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--------
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--------
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@ -39,7 +39,7 @@ SELECT * FROM macaddr_data;
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CREATE INDEX macaddr_data_btree ON macaddr_data USING btree (b);
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CREATE INDEX macaddr_data_btree ON macaddr_data USING btree (b);
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CREATE INDEX macaddr_data_hash ON macaddr_data USING hash (b);
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CREATE INDEX macaddr_data_hash ON macaddr_data USING hash (b);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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SELECT a, b, trunc(b) FROM macaddr_data ORDER BY 2, 1;
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SELECT a, b, trunc(b) FROM macaddr_data ORDER BY 2, 1;
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a | b | trunc
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a | b | trunc
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----+-------------------+-------------------
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----+-------------------+-------------------
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@ -11,7 +11,7 @@ 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_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 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 INDEX test_replica_identity_hash ON test_replica_identity USING hash (nonkey);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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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_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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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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-- default is 'd'/DEFAULT for user created tables
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@ -114,7 +114,7 @@ SELECT COUNT(*) FROM guid1 WHERE guid_field >= '22222222-2222-2222-2222-22222222
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-- btree and hash index creation test
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-- btree and hash index creation test
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CREATE INDEX guid1_btree ON guid1 USING BTREE (guid_field);
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CREATE INDEX guid1_btree ON guid1 USING BTREE (guid_field);
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CREATE INDEX guid1_hash ON guid1 USING HASH (guid_field);
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CREATE INDEX guid1_hash ON guid1 USING HASH (guid_field);
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WARNING: hash indexes are not WAL-logged and thus are not crash-safe and cannot be used on standby servers
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WARNING: hash indexes are not WAL-logged and their use is discouraged
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-- unique index test
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-- unique index test
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CREATE UNIQUE INDEX guid1_unique_BTREE ON guid1 USING BTREE (guid_field);
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CREATE UNIQUE INDEX guid1_unique_BTREE ON guid1 USING BTREE (guid_field);
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-- should fail
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-- should fail
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