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MDEV-10141: Add support for INTERSECT (and common parts for EXCEPT)

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MDEV-10140: Add support for EXCEPT
This commit is contained in:
Oleksandr Byelkin
2017-03-14 11:52:00 +01:00
parent e43156e1a6
commit 05d3c3d3f7
93 changed files with 3155 additions and 900 deletions
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9
sql/sql_class.cc
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@ -3877,7 +3877,8 @@ create_result_table(THD *thd_arg, List<Item> *column_types,
bool is_union_distinct, ulonglong options,
const char *table_alias, bool bit_fields_as_long,
bool create_table,
bool keep_row_order)
bool keep_row_order,
uint hidden)
{
DBUG_ASSERT(table == 0);
tmp_table_param.field_count= column_types->elements;
@ -3912,12 +3913,12 @@ void select_materialize_with_stats::reset()
void select_materialize_with_stats::cleanup()
{
reset();
select_union::cleanup();
select_unit::cleanup();
}
/**
Override select_union::send_data to analyze each row for NULLs and to
Override select_unit::send_data to analyze each row for NULLs and to
update null_statistics before sending data to the client.
@return TRUE if fatal error when sending data to the client
@ -3932,7 +3933,7 @@ int select_materialize_with_stats::send_data(List<Item> &items)
uint nulls_in_row= 0;
int res;
if ((res= select_union::send_data(items)))
if ((res= select_unit::send_data(items)))
return res;
if (table->null_catch_flags & REJECT_ROW_DUE_TO_NULL_FIELDS)
{