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now all tables of query are locked in one place (including derived tables)

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fixed BUG#2120 and other problem with EXPLAINing derived tables
This commit is contained in:
bell@sanja.is.com.ua
2004-02-01 15:30:32 +02:00
parent 95fcfaf63c
commit 2a9cd37cd6
18 changed files with 311 additions and 248 deletions
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4
sql/mysql_priv.h
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@ -481,14 +481,13 @@ int mysql_select(THD *thd, Item ***rref_pointer_array,
SELECT_LEX *select_lex);
void free_underlaid_joins(THD *thd, SELECT_LEX *select);
void fix_tables_pointers(SELECT_LEX *select_lex);
void fix_tables_pointers(SELECT_LEX_UNIT *select_lex);
int mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
select_result *result);
int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
select_result *result);
int mysql_union(THD *thd, LEX *lex, select_result *result,
SELECT_LEX_UNIT *unit);
int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *s, TABLE_LIST *t);
int mysql_handle_derived(LEX *lex);
Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
Item ***copy_func, Field **from_field,
bool group,bool modify_item);
@ -676,6 +675,7 @@ int setup_ftfuncs(SELECT_LEX* select);
int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
void wait_for_refresh(THD *thd);
int open_tables(THD *thd,TABLE_LIST *tables);
int simple_open_n_lock_tables(THD *thd,TABLE_LIST *tables);
int open_and_lock_tables(THD *thd,TABLE_LIST *tables);
int lock_tables(THD *thd,TABLE_LIST *tables);
TABLE *open_temporary_table(THD *thd, const char *path, const char *db,