From c9c58163a936ccf2882aae1230018117744546b0 Mon Sep 17 00:00:00 2001
From: unknown <monty@mysql.com/nosik.monty.fi>
Date: Thu, 27 Sep 2007 14:18:28 +0300
Subject: Remove SAFE_MODE for opt_range as it disables UPDATE to use keys REDO
 optimization (Bascily avoid moving blocks from/to pagecache) More command
 line arguments to maria_read_log Fixed recovery bug when recreating table

sql/opt_range.cc:
  Remove SAFE_MODE for opt_range as it disables UPDATE to use keys
storage/maria/ma_blockrec.c:
  REDO optimization
  Use new interface for pagecache_reads to avoid copying page buffers
storage/maria/ma_loghandler.c:
  Patch from Sanja:
  - Added new parameter to translog_get_page to use direct links to pagecache
  - Changed scanner to be able to use direct links

  This avoids a lot of calls to bmove512() in page cache.
storage/maria/ma_loghandler.h:
  Added direct link to pagecache objects
storage/maria/ma_open.c:
  Added const to parameter
  Added missing braces
storage/maria/ma_pagecache.c:
  From Sanja:
  - Added direct links to pagecache (from pagecache_read())
    Dirrect link means that on pagecache_read we get back a pointer to the pagecache buffer


  From Monty:
  - Fixed arguments to init_page_cache to handle big page caches
  - Fixed compiler warnings
  - Replaced PAGECACHE_PAGE_LINK with PAGECACHE_BLOCK_LINK * to catch errors
storage/maria/ma_pagecache.h:
  Changed block numbers from int to long to be able to handle big page caches
  Changed some PAGECACHE_PAGE_LINK to PAGECACHE_BLOCK_LINK
storage/maria/ma_recovery.c:
  Fixed recovery bug when recreating table (table was kept open)
  Moved some variables to function start (portability)
  Added space to some print messages
storage/maria/maria_chk.c:
  key_buffer_size -> page_buffer_size
storage/maria/maria_def.h:
  Changed default page_buffer_size to 10M
storage/maria/maria_read_log.c:
  Added more startup options:
  --version
  --undo (apply undo)
  --page_cache_size (to run with big cache sizes)
  --silent (to not get any output from --apply)
storage/maria/unittest/ma_control_file-t.c:
  Fixed compiler warning
storage/maria/unittest/ma_test_loghandler-t.c:
  Added new argument to translog_init_scanner()
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  Added new argument to translog_init_scanner()
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
  Added new argument to translog_init_scanner()
---
 sql/opt_range.cc | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'sql/opt_range.cc')

diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index 3ee7e8ee813..fbb1a2be487 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -2130,9 +2130,6 @@ int SQL_SELECT::test_quick_select(THD *thd, key_map keys_to_use,
   quick=0;
   needed_reg.clear_all();
   quick_keys.clear_all();
-  if ((specialflag & SPECIAL_SAFE_MODE) && ! force_quick_range ||
-      !limit)
-    DBUG_RETURN(0); /* purecov: inspected */
   if (keys_to_use.is_clear_all())
     DBUG_RETURN(0);
   records= head->file->stats.records;
-- 
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