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mysql-test/r/fulltext.result

@@ -510,3 +510,11 @@ CREATE TABLE t1(a TEXT);
 SELECT GROUP_CONCAT(a) AS st FROM t1 HAVING MATCH(st) AGAINST('test' IN BOOLEAN MODE);
 ERROR HY000: Incorrect arguments to AGAINST
 DROP TABLE t1;
+CREATE TABLE t1 (col text, FULLTEXT KEY full_text (col));
+PREPARE s FROM 
+"SELECT MATCH (col) AGAINST('findme') FROM t1 ORDER BY MATCH (col) AGAINST('findme')"
+  ;
+EXECUTE s;
+MATCH (col) AGAINST('findme')
+DEALLOCATE PREPARE s;
+DROP TABLE t1;

mysql-test/t/fulltext.test

@@ -440,3 +440,18 @@ CREATE TABLE t1(a TEXT);
 --error ER_WRONG_ARGUMENTS
 SELECT GROUP_CONCAT(a) AS st FROM t1 HAVING MATCH(st) AGAINST('test' IN BOOLEAN MODE);
 DROP TABLE t1;
+
+#
+# BUG#37740 Server crashes on execute statement with full text search and match against
+#
+
+CREATE TABLE t1 (col text, FULLTEXT KEY full_text (col));
+
+PREPARE s FROM 
+  "SELECT MATCH (col) AGAINST('findme') FROM t1 ORDER BY MATCH (col) AGAINST('findme')"
+  ;
+
+EXECUTE s;
+DEALLOCATE PREPARE s;
+DROP TABLE t1;
+

sql/item_func.h

@@ -1456,6 +1456,7 @@ class Item_func_match :public Item_real_func
       ft_handler->please->close_search(ft_handler);
     ft_handler= 0;
     concat_ws= 0;
+    table= 0;           // required by Item_func_match::eq()
     DBUG_VOID_RETURN;
   }
   enum Functype functype() const { return FT_FUNC; }