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EXPLAIN UNION using same routing which used for execution which allow return correct bug messages (Bug #3639)

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EXPLAIN of hidden SELECT of UNION
This commit is contained in:
bell@sanja.is.com.ua
2004-05-06 20:40:21 +03:00
parent ec33d794d8
commit 3aae50e8c0
11 changed files with 179 additions and 74 deletions
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3
sql/sql_class.h
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@ -768,7 +768,7 @@ public:
uint current_tablenr,tmp_table;
uint server_status,open_options,system_thread;
uint32 db_length;
uint select_number; //number of select (used for EXPLAIN)
int select_number; //number of select (used for EXPLAIN)
/* variables.transaction_isolation is reset to this after each commit */
enum_tx_isolation session_tx_isolation;
enum_check_fields count_cuted_fields;
@ -1147,7 +1147,6 @@ class select_union :public select_result {
TABLE *table;
COPY_INFO info;
TMP_TABLE_PARAM tmp_table_param;
bool not_describe;
select_union(TABLE *table_par);
~select_union();