fixed error detection

parent efae22f6
...@@ -1094,7 +1094,7 @@ int subselect_indexsubquery_engine::exec() ...@@ -1094,7 +1094,7 @@ int subselect_indexsubquery_engine::exec()
*tab->null_ref_key= 1; *tab->null_ref_key= 1;
null_finding= 1; null_finding= 1;
/* Check if there exists a row with a null value in the index */ /* Check if there exists a row with a null value in the index */
if ((error= safe_index_read(tab))) if ((error= (safe_index_read(tab) == 1)))
break; break;
} }
} }
......
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