MDEV-25013: SIGSEGV in best_extension_by_limited_search | SIGSEGV in restore_prev_nj_state

Add testcase

mysql-test/r/selectivity_innodb.result

@@ -2129,6 +2129,28 @@ set
 join_cache_level=@tmp_jcl,
 optimizer_use_condition_selectivity=@tmp_sel;
 drop table t1;
+# 
+# MDEV-25013: SIGSEGV in best_extension_by_limited_search | SIGSEGV in restore_prev_nj_state
+# 
+SET join_cache_level=3;
+CREATE TABLE t1 (
+TEXT1 TEXT, TEXT2 TEXT, TEXT3 TEXT, TEXT4 TEXT, TEXT5 TEXT,
+TEXT6 TEXT, TEXT7 TEXT, TEXT8 TEXT, TEXT9 TEXT, TEXT10 TEXT,
+TEXT11 TEXT, TEXT12 TEXT,TEXT13 TEXT,TEXT14 TEXT,TEXT15 TEXT,
+TEXT16 TEXT,TEXT17 TEXT,TEXT18 TEXT,TEXT19 TEXT,TEXT20 TEXT,
+TEXT21 TEXT,TEXT22 TEXT,TEXT23 TEXT,TEXT24 TEXT,TEXT25 TEXT,
+TEXT26 TEXT,TEXT27 TEXT,TEXT28 TEXT,TEXT29 TEXT,TEXT30 TEXT,
+TEXT31 TEXT,TEXT32 TEXT,TEXT33 TEXT,TEXT34 TEXT,TEXT35 TEXT,
+TEXT36 TEXT,TEXT37 TEXT,TEXT38 TEXT,TEXT39 TEXT,TEXT40 TEXT,
+TEXT41 TEXT,TEXT42 TEXT,TEXT43 TEXT,TEXT44 TEXT,TEXT45 TEXT,
+TEXT46 TEXT,TEXT47 TEXT,TEXT48 TEXT,TEXT49 TEXT,TEXT50 TEXT
+) ENGINE=InnoDB;
+EXPLAIN SELECT 1 FROM t1 NATURAL JOIN t1 AS t2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	1	Using where
+1	SIMPLE	t2	hash_ALL	NULL	#hash#$hj	150	test.t1.TEXT1,test.t1.TEXT2,test.t1.TEXT3,test.t1.TEXT4,test.t1.TEXT5,test.t1.TEXT6,test.t1.TEXT7,test.t1.TEXT8,test.t1.TEXT9,test.t1.TEXT10,test.t1.TEXT11,test.t1.TEXT12,test.t1.TEXT13,test.t1.TEXT14,test.t1.TEXT15,test.t1.TEXT16,test.t1.TEXT17,test.t1.TEXT18,test.t1.TEXT19,test.t1.TEXT20,test.t1.TEXT21,test.t1.TEXT22,test.t1.TEXT23,test.t1.TEXT24,test.t1.TEXT25,test.t1.TEXT26,test.t1.TEXT27,test.t1.TEXT28,test.t1.TEXT29,test.t1.TEXT30,test.t1.TEXT31,test.t1.TEXT32,test.t1.TEXT33,test.t1.TEXT34,test.t1.TEXT35,test.t1.TEXT36,test.t1.TEXT37,test.t1.TEXT38,test.t1.TEXT39,test.t1.TEXT40,test.t1.TEXT41,test.t1.TEXT42,test.t1.TEXT43,test.t1.TEXT44,test.t1.TEXT45,test.t1.TEXT46,test.t1.TEXT47,test.t1.TEXT48,test.t1.TEXT49,test.t1.TEXT50	1	Using where; Using join buffer (flat, BNLH join)
+set join_cache_level=@tmp_jcl;
+drop table t1;
 #
 # End of 10.1 tests
 #

mysql-test/t/selectivity_innodb.test

@@ -204,6 +204,27 @@ set
   optimizer_use_condition_selectivity=@tmp_sel;
 drop table t1;
 
+--echo # 
+--echo # MDEV-25013: SIGSEGV in best_extension_by_limited_search | SIGSEGV in restore_prev_nj_state
+--echo # 
+
+SET join_cache_level=3;
+CREATE TABLE t1 (
+  TEXT1 TEXT, TEXT2 TEXT, TEXT3 TEXT, TEXT4 TEXT, TEXT5 TEXT,
+  TEXT6 TEXT, TEXT7 TEXT, TEXT8 TEXT, TEXT9 TEXT, TEXT10 TEXT,
+  TEXT11 TEXT, TEXT12 TEXT,TEXT13 TEXT,TEXT14 TEXT,TEXT15 TEXT,
+  TEXT16 TEXT,TEXT17 TEXT,TEXT18 TEXT,TEXT19 TEXT,TEXT20 TEXT,
+  TEXT21 TEXT,TEXT22 TEXT,TEXT23 TEXT,TEXT24 TEXT,TEXT25 TEXT,
+  TEXT26 TEXT,TEXT27 TEXT,TEXT28 TEXT,TEXT29 TEXT,TEXT30 TEXT,
+  TEXT31 TEXT,TEXT32 TEXT,TEXT33 TEXT,TEXT34 TEXT,TEXT35 TEXT,
+  TEXT36 TEXT,TEXT37 TEXT,TEXT38 TEXT,TEXT39 TEXT,TEXT40 TEXT,
+  TEXT41 TEXT,TEXT42 TEXT,TEXT43 TEXT,TEXT44 TEXT,TEXT45 TEXT,
+  TEXT46 TEXT,TEXT47 TEXT,TEXT48 TEXT,TEXT49 TEXT,TEXT50 TEXT
+) ENGINE=InnoDB;
+EXPLAIN SELECT 1 FROM t1 NATURAL JOIN t1 AS t2;
+
+set join_cache_level=@tmp_jcl;
+drop table t1;
 --echo #
 --echo # End of 10.1 tests
 --echo #