Note that effective_io_concurrency only affects bitmap heap scans.

Josh Kupershmidt
2010-10-26 21:44:14 -04:00 · 2010-10-26 21:44:14 -04:00 · 5a12c808cf
parent 20709f8136
commit 5a12c808cf
1 changed files with 2 additions and 1 deletions
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@ -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>