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Bug #57663 Concurrent statement using stored function and DROP DATABASE

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breaks SBR

This pre-requisite patch refactors the code for dropping tables, used
by DROP TABLE and DROP DATABASE. The patch moves the code for acquiring
metadata locks out of mysql_rm_table_part2() and makes it the
responsibility of the caller. This in preparation of changing the
DROP DATABASE implementation to acquire all metadata locks before any
changes are made. mysql_rm_table_part2() is renamed
mysql_rm_table_no_locks() to reflect the change.
This commit is contained in:
Jon Olav Hauglid
2010-11-16 11:00:12 +01:00
parent 2ef19bdcc4
commit a84d750300
5 changed files with 158 additions and 110 deletions
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5
sql/sql_table.h
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@ -174,8 +174,9 @@ bool mysql_checksum_table(THD* thd, TABLE_LIST* table_list,
HA_CHECK_OPT* check_opt);
bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
my_bool drop_temporary);
int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
bool drop_temporary, bool drop_view, bool log_query);
int mysql_rm_table_no_locks(THD *thd, TABLE_LIST *tables, bool if_exists,
bool drop_temporary, bool drop_view,
bool log_query);
bool quick_rm_table(handlerton *base,const char *db,
const char *table_name, uint flags);
void close_cached_table(THD *thd, TABLE *table);