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Note that effective_io_concurrency only affects bitmap heap scans.

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Josh Kupershmidt
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Robert Haas 2010-10-26 21:44:14 -04:00
parent 20709f8136
commit 5a12c808cf
1 changed files with 2 additions and 1 deletions
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doc/src/sgml/config.sgml
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@ -1354,7 +1354,8 @@ SET ENABLE_SEQSCAN TO OFF;
simultaneously. Raising this value will increase the number of I/O
operations that any individual <productname>PostgreSQL</> session
attempts to initiate in parallel. The allowed range is 1 to 1000,
or zero to disable issuance of asynchronous I/O requests.
or zero to disable issuance of asynchronous I/O requests. Currently,
this setting only affects bitmap heap scans.
</para>
<para>