1 files changed, 21 insertions, 0 deletions
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index aca84f1bcb3..07005a8e140 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -943,3 +943,24 @@ compare_func_creator comp_le_creator(bool invert);
 compare_func_creator comp_lt_creator(bool invert);
 compare_func_creator comp_ne_creator(bool invert);
 
+/*
+  clean/setup table fields and map
+
+  SYNOPSYS
+    setup_table_map()
+    table - TABLE structure pointer (which should be setup)
+    table_list TABLE_LIST structure pointer (owner of TABLE)
+    tablenr - table number
+*/
+inline void setup_table_map(TABLE *table, TABLE_LIST *table_list, uint tablenr)
+{
+  table->used_fields= 0;
+  table->const_table= 0;
+  table->outer_join= table->null_row= 0;
+  table->status= STATUS_NO_RECORD;
+  table->keys_in_use_for_query= table->keys_in_use;
+  table->maybe_null= test(table->outer_join= table_list->outer_join);
+  table->tablenr= tablenr;
+  table->map= (table_map) 1 << tablenr;
+  table->force_index= table_list->force_index;
+}