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@ -1,4 +1,4 @@ |
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<!-- $PostgreSQL: pgsql/doc/src/sgml/auto-explain.sgml,v 1.6 2009/12/15 04:57:47 rhaas Exp $ --> |
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<!-- $PostgreSQL: pgsql/doc/src/sgml/auto-explain.sgml,v 1.7 2010/02/20 22:24:29 adunstan Exp $ --> |
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<sect1 id="auto-explain"> |
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<title>auto_explain</title> |
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@ -188,17 +188,18 @@ auto_explain.log_min_duration = '3s' |
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</para> |
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<programlisting><![CDATA[ |
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LOG: duration: 0.986 ms plan: |
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Aggregate (cost=14.90..14.91 rows=1 width=0) |
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-> Hash Join (cost=3.91..14.70 rows=81 width=0) |
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Hash Cond: (pg_class.oid = pg_index.indrelid) |
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-> Seq Scan on pg_class (cost=0.00..8.27 rows=227 width=4) |
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-> Hash (cost=2.90..2.90 rows=81 width=4) |
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-> Seq Scan on pg_index (cost=0.00..2.90 rows=81 width=4) |
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Filter: indisunique |
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STATEMENT: SELECT count(*) |
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FROM pg_class, pg_index |
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WHERE oid = indrelid AND indisunique; |
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LOG: duration: 3.651 ms plan: |
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Query Text: SELECT count(*) |
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FROM pg_class, pg_index |
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WHERE oid = indrelid AND indisunique; |
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Aggregate (cost=16.79..16.80 rows=1 width=0) (actual time=3.626..3.627 rows=1 loops=1) |
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-> Hash Join (cost=4.17..16.55 rows=92 width=0) (actual time=3.349..3.594 rows=92 loops=1) |
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Hash Cond: (pg_class.oid = pg_index.indrelid) |
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-> Seq Scan on pg_class (cost=0.00..9.55 rows=255 width=4) (actual time=0.016..0.140 rows=255 loops=1) |
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-> Hash (cost=3.02..3.02 rows=92 width=4) (actual time=3.238..3.238 rows=92 loops=1) |
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Buckets: 1024 Batches: 1 Memory Usage: 4kB |
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-> Seq Scan on pg_index (cost=0.00..3.02 rows=92 width=4) (actual time=0.008..3.187 rows=92 loops=1) |
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Filter: indisunique |
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]]> |
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</programlisting> |
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</sect2> |
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