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| author | unknown <marko@hundin.mysql.fi> | 2005-06-30 11:15:06 +0300 |
|---|---|---|
| committer | unknown <marko@hundin.mysql.fi> | 2005-06-30 11:15:06 +0300 |
| commit | 384a0c0a0f7391b3e243f6811acd19acd6e2d006 (patch) | |
| tree | c43c957b05d9e40e028b9b900926a61082fac239 /innobase/include | |
| parent | 14ade13553492ea84e8e187134fe4cd76a44f5b3 (diff) | |
| download | mariadb-git-384a0c0a0f7391b3e243f6811acd19acd6e2d006.tar.gz | |
InnoDB: Optimize page_cur_search_with_match().
innobase/btr/btr0cur.c:
Disable the mode PAGE_CUR_LE_OR_EXTENDS at compile-time
innobase/include/page0cur.h:
Disable the mode PAGE_CUR_LE_OR_EXTENDS at compile-time
Do not define PAGE_CUR_DBG unless #ifdef UNIV_SEARCH_DEBUG
innobase/page/page0cur.c:
Disable the mode PAGE_CUR_LE_OR_EXTENDS at compile-time
Disable PAGE_CUR_DBG unless #ifdef UNIV_SEARCH_DEBUG
page_cur_try_search_shortcut(): Optimize the predicates
(compare the result of page_cmp_dtuple_rec_with_match() against 0,
use page_rec_is_supremum()).
page_cur_search_with_match(): Compare the result of
cmp_dtuple_rec_with_match() against zero, add UNIV_LIKELY hints,
replace duplicated code with gotos.
Diffstat (limited to 'innobase/include')
| -rw-r--r-- | innobase/include/page0cur.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/innobase/include/page0cur.h b/innobase/include/page0cur.h index e89e740e775..b03302b0e77 100644 --- a/innobase/include/page0cur.h +++ b/innobase/include/page0cur.h @@ -26,11 +26,13 @@ Created 10/4/1994 Heikki Tuuri #define PAGE_CUR_GE 2 #define PAGE_CUR_L 3 #define PAGE_CUR_LE 4 -#define PAGE_CUR_LE_OR_EXTENDS 5 /* This is a search mode used in +/*#define PAGE_CUR_LE_OR_EXTENDS 5*/ /* This is a search mode used in "column LIKE 'abc%' ORDER BY column DESC"; we have to find strings which are <= 'abc' or which extend it */ -#define PAGE_CUR_DBG 6 +#ifdef UNIV_SEARCH_DEBUG +# define PAGE_CUR_DBG 6 /* As PAGE_CUR_LE, but skips search shortcut */ +#endif /* UNIV_SEARCH_DEBUG */ #ifdef PAGE_CUR_ADAPT # ifdef UNIV_SEARCH_PERF_STAT |