From 5a12c808cf223c7a5498217142cc9cb45efe033a Mon Sep 17 00:00:00 2001
From: Robert Haas <rhaas@postgresql.org>
Date: Tue, 26 Oct 2010 21:44:14 -0400
Subject: [PATCH] Note that effective_io_concurrency only affects bitmap heap
scans.
Josh Kupershmidt
---
doc/src/sgml/config.sgml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index f178835d2b0..898cdacbb10 100644
--- 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>
--
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