Paweł Domański
41 lines
1.2 KiB
SQL
41 lines
1.2 KiB
SQL
REINDEX rebuilds an index using the data stored in the index's table, replacing the old copy of the index. There are several scenarios in which to use REINDEX:
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- Rebuild particular index:
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postgres=# REINDEX INDEX TEST_IDX2;
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REINDEX
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-- Rebuild all indexes on a table:
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postgres=# REINDEX TABLE TEST;
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REINDEX
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-- Rebuild all indexes of tables in a schema:
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postgres=# reindex schema public;
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REINDEX
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-- Rebuild all indexes in a database :
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postgres=# reindex database dbaclass;
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REINDEX
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-- Reindex with verbose option:
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postgres=# reindex (verbose) table test;
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INFO: index "test_idx" was reindexed
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DETAIL: CPU: user: 5.44 s, system: 2.72 s, elapsed: 11.96 s
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INFO: index "test_idx2" was reindexed
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DETAIL: CPU: user: 3.34 s, system: 1.01 s, elapsed: 5.49 s
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INFO: index "pg_toast_17395_index" was reindexed
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DETAIL: CPU: user: 0.00 s, system: 0.00 s, elapsed: 0.00 s
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REINDEX
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Rebuild index without causing lock on the table:( using concurrently option)
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postgres=# REINDEX ( verbose) table concurrently test;
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INFO: index "public.test_idx" was reindexed
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INFO: index "public.test_idx2" was reindexed
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INFO: index "pg_toast.pg_toast_17395_index" was reindexed
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INFO: table "public.test" was reindexed
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DETAIL: CPU: user: 11.09 s, system: 6.23 s, elapsed: 24.63 s.
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REINDEX |