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| author | Sergey Petrunia <sergefp@mysql.com> | 2009-02-23 19:16:48 +0300 |
|---|---|---|
| committer | Sergey Petrunia <sergefp@mysql.com> | 2009-02-23 19:16:48 +0300 |
| commit | cb6581d89459a4c45e9146a40e1f0119a2e8e325 (patch) | |
| tree | 3d3b5469190266610021c7ceae3e2beb730355fe /sql/mysql_priv.h | |
| parent | fecaef26af0417a23f6585c79de41abd5f6aba86 (diff) | |
| download | mariadb-git-cb6581d89459a4c45e9146a40e1f0119a2e8e325.tar.gz | |
- Backport @@optimizer_switch support from 6.0
- Add support for setting it as a server commandline argument
- Add support for those switches:
= no_index_merge
= no_index_merge_union
= no_index_merge_sort_union
= no_index_merge_intersection
mysql-test/r/index_merge_myisam.result:
Testcases for index_merge related @@optimizer_switch flags.
mysql-test/t/index_merge_myisam.test:
Testcases for index_merge related @@optimizer_switch flags.
sql/set_var.cc:
- Backport @@optimizer_switch support from 6.0
- Add support for setting it as a server commandline argument
sql/sql_class.h:
- Backport @@optimizer_switch support from 6.0
sql/sql_select.h:
- Backport @@optimizer_switch support from 6.0
Diffstat (limited to 'sql/mysql_priv.h')
| -rw-r--r-- | sql/mysql_priv.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h index 3fba9248940..21741bc2eaf 100644 --- a/sql/mysql_priv.h +++ b/sql/mysql_priv.h @@ -523,6 +523,12 @@ protected: #define MODE_NO_ENGINE_SUBSTITUTION (MODE_HIGH_NOT_PRECEDENCE*2) #define MODE_PAD_CHAR_TO_FULL_LENGTH (ULL(1) << 31) +/* @@optimizer_switch flags */ +#define OPTIMIZER_SWITCH_NO_INDEX_MERGE 1 +#define OPTIMIZER_SWITCH_NO_INDEX_MERGE_UNION 2 +#define OPTIMIZER_SWITCH_NO_INDEX_MERGE_SORT_UNION 4 +#define OPTIMIZER_SWITCH_NO_INDEX_MERGE_INTERSECT 8 + /* Replication uses 8 bytes to store SQL_MODE in the binary log. The day you use strictly more than 64 bits by adding one more define above, you should |