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MDEV-6107 merge default_tmp_storage_engine

Adapt default_tmp_storage_engine implementation from mysql-5.6
New feature (as compared to 5.6), default_tmp_storage_engine=NULL
means that temporary tables will use default_storage_engine value.
This makes the behavior backward compatible.
This commit is contained in:
Sergei Golubchik
2014-06-14 22:15:52 +02:00
parent 2edcf8f9ff
commit cf1a09e42f
17 changed files with 516 additions and 68 deletions

View File

@ -610,6 +610,7 @@ typedef struct system_variables
my_bool query_cache_strip_comments;
plugin_ref table_plugin;
plugin_ref tmp_table_plugin;
/* Only charset part of these variables is sensible */
CHARSET_INFO *character_set_filesystem;