From: Jorgen Loland
Date: January 18 2011 3:20pm
Subject: bzr commit into mysql-next-mr-bugfixing branch (jorgen.loland:3260) WL#5594
List-Archive: http://lists.mysql.com/commits/129099
Message-Id: <20110118152030.6D0C68B3@atum21.norway.sun.com>
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="===============1742989845921025553=="

--===============1742989845921025553==
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

#At file:///export/home/jl208045/mysql/wl4800/mysql-next-mr-opt-backporting-wl4800-range-subselect/ based on revid:guilhem.bichot@stripped

 3260 Jorgen Loland	2011-01-18
      WL#5594: Add optimizer traces to the range optimizer
      
      Review comments: fix documentation for SQL_SELECT::traced_before 

    modified:
      sql/opt_range.h
=== modified file 'sql/opt_range.h'
--- a/sql/opt_range.h	2011-01-14 15:53:48 +0000
+++ b/sql/opt_range.h	2011-01-18 15:20:27 +0000
@@ -857,10 +857,13 @@ class SQL_SELECT :public Sql_alloc {
   bool	free_cond;
 
   /** 
-      Used by optimizer tracing if this is a subquery: Whether or not
-      execution of this subselect has been traced by optimizer tracing
-      already. If optimizer trace option DYNAMIC_RANGE is disabled,
-      this is used to disable tracing after the first one.
+    Used for QS_DYNAMIC_RANGE, i.e., "Range checked for each record".
+    Used by optimizer tracing to decide whether or not dynamic range
+    analysis of this select has been traced already. If optimizer
+    trace option DYNAMIC_RANGE is enabled, range analysis will be
+    traced with different ranges for every record to the left of this
+    table in the join. If disabled, range analysis will only be traced
+    for the first range.
   */
   bool traced_before;
 


--===============1742989845921025553==
MIME-Version: 1.0
Content-Type: text/bzr-bundle; charset="us-ascii";
	name="bzr/jorgen.loland@stripped"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

# Bazaar merge directive format 2 (Bazaar 0.90)
# revision_id: jorgen.loland@stripped\
#   on7x3yd9qxmitvff
# target_branch: file:///export/home/jl208045/mysql/wl4800/mysql-next-\
#   mr-opt-backporting-wl4800-range-subselect/
# testament_sha1: 441caa673d2e9459e9d0f186494785ee957d2c71
# timestamp: 2011-01-18 16:20:30 +0100
# base_revision_id: guilhem.bichot@stripped\
#   9zvrua9ejymso51i
# 
# Begin bundle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==


--===============1742989845921025553==--