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-rw-r--r--sql/sql_derived.cc52
1 files changed, 46 insertions, 6 deletions
diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index 0d237b94af2..f9801d2bf36 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -364,6 +364,9 @@ bool mysql_derived_merge(THD *thd, LEX *lex, TABLE_LIST *derived)
SELECT_LEX *parent_lex= derived->select_lex;
Query_arena *arena, backup;
DBUG_ENTER("mysql_derived_merge");
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
if (derived->merged)
DBUG_RETURN(FALSE);
@@ -510,7 +513,9 @@ unconditional_materialization:
bool mysql_derived_merge_for_insert(THD *thd, LEX *lex, TABLE_LIST *derived)
{
DBUG_ENTER("mysql_derived_merge_for_insert");
- DBUG_PRINT("enter", ("derived: %p", derived));
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
DBUG_PRINT("info", ("merged_for_insert: %d is_materialized_derived: %d "
"is_multitable: %d single_table_updatable: %d "
"merge_underlying_list: %d",
@@ -566,7 +571,9 @@ bool mysql_derived_init(THD *thd, LEX *lex, TABLE_LIST *derived)
{
SELECT_LEX_UNIT *unit= derived->get_unit();
DBUG_ENTER("mysql_derived_init");
- DBUG_PRINT("enter", ("derived: %p", derived));
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
// Skip already prepared views/DT
if (!unit || unit->prepared)
@@ -642,8 +649,9 @@ bool mysql_derived_prepare(THD *thd, LEX *lex, TABLE_LIST *derived)
SELECT_LEX_UNIT *unit= derived->get_unit();
DBUG_ENTER("mysql_derived_prepare");
bool res= FALSE;
- DBUG_PRINT("enter", ("unit: %p table_list: %p Alias '%s'",
- unit, derived, derived->alias));
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ unit));
if (!unit)
DBUG_RETURN(FALSE);
@@ -876,6 +884,9 @@ bool mysql_derived_optimize(THD *thd, LEX *lex, TABLE_LIST *derived)
bool res= FALSE;
DBUG_ENTER("mysql_derived_optimize");
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
lex->current_select= first_select;
@@ -954,6 +965,9 @@ err:
bool mysql_derived_create(THD *thd, LEX *lex, TABLE_LIST *derived)
{
DBUG_ENTER("mysql_derived_create");
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
TABLE *table= derived->table;
SELECT_LEX_UNIT *unit= derived->get_unit();
@@ -1047,10 +1061,14 @@ bool TABLE_LIST::fill_recursive(THD *thd)
bool mysql_derived_fill(THD *thd, LEX *lex, TABLE_LIST *derived)
{
- DBUG_ENTER("mysql_derived_fill");
+ Field_iterator_table field_iterator;
SELECT_LEX_UNIT *unit= derived->get_unit();
bool derived_is_recursive= derived->is_recursive_with_table();
bool res= FALSE;
+ DBUG_ENTER("mysql_derived_fill");
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
if (unit->executed && !unit->uncacheable && !unit->describe &&
!derived_is_recursive)
@@ -1121,9 +1139,28 @@ bool mysql_derived_fill(THD *thd, LEX *lex, TABLE_LIST *derived)
if (derived_result->flush())
res= TRUE;
unit->executed= TRUE;
+
+ if (derived->field_translation)
+ {
+ /* reset translation table to materialized table */
+ field_iterator.set_table(derived->table);
+ for (uint i= 0;
+ !field_iterator.end_of_fields();
+ field_iterator.next(), i= i + 1)
+ {
+ Item *item;
+
+ if (!(item= field_iterator.create_item(thd)))
+ {
+ res= TRUE;
+ break;
+ }
+ thd->change_item_tree(&derived->field_translation[i].item, item);
+ }
+ }
}
err:
- if (res || (!lex->describe && !derived_is_recursive && !unit->uncacheable))
+ if (res || (!lex->describe && !derived_is_recursive && !unit->uncacheable))
unit->cleanup();
lex->current_select= save_current_select;
@@ -1151,6 +1188,9 @@ err:
bool mysql_derived_reinit(THD *thd, LEX *lex, TABLE_LIST *derived)
{
DBUG_ENTER("mysql_derived_reinit");
+ DBUG_PRINT("enter", ("Alias: '%s' Unit: %p",
+ (derived->alias ? derived->alias : "<NULL>"),
+ derived->get_unit()));
st_select_lex_unit *unit= derived->get_unit();
derived->merged_for_insert= FALSE;