svnno****@sourc*****
svnno****@sourc*****
2008年 6月 9日 (月) 14:46:36 JST
Revision: 133
http://svn.sourceforge.jp/cgi-bin/viewcvs.cgi?root=tritonn&view=rev&rev=133
Author: mir
Date: 2008-06-09 14:46:36 +0900 (Mon, 09 Jun 2008)
Log Message:
-----------
added comments for senna_2ind flags
Modified Paths:
--------------
tags/tritonn-1.0.10-mysql-5.0.51a/include/my_base.h
-------------- next part --------------
Modified: tags/tritonn-1.0.10-mysql-5.0.51a/include/my_base.h
===================================================================
--- tags/tritonn-1.0.10-mysql-5.0.51a/include/my_base.h 2008-06-09 04:06:05 UTC (rev 132)
+++ tags/tritonn-1.0.10-mysql-5.0.51a/include/my_base.h 2008-06-09 05:46:36 UTC (rev 133)
@@ -336,16 +336,20 @@
#define HA_STATUS_SENNA (1 << 31)
#endif
-/*
+/*
The following defines are for senna.2ind patch.
+
+ 1. For (output|filesort|grouping), record value is needed?
+ 2. If so, each code checks if filescan is needed.
+ 3. If filescan is needed, read_record will be executed.
*/
#ifdef ENABLE_SENNA
-#define SENNA_USE_2IND (1 << 0)
-#define SENNA_MATCH (1 << 1)
-#define SENNA_FILESORT (1 << 2)
-#define SENNA_DO_READ_RECORD (1 << 3)
-#define SENNA_IF_READ_RECORD (1 << 4)
-#define SENNA_DISTINCT (1 << 5)
+#define SENNA_USE_2IND (1 << 0) /* senna_2ind is on */
+#define SENNA_MATCH (1 << 1) /* query has match...agains */
+#define SENNA_FILESORT (1 << 2) /* query needs filesort */
+#define SENNA_DO_READ_RECORD (1 << 3) /* query needs read_record when filescan, ft_read_next */
+#define SENNA_IF_READ_RECORD (1 << 4) /* decide_read_or_skip told read_record is needed */
+#define SENNA_DISTINCT (1 << 5) /* query has distict */
#define SENNA_FIRST_CALL (1 << 6)
#endif