BUG#26624: high mem usage (crash) in range optimizer

Pushbuild fixes: 
 - Make MAX_SEL_ARGS smaller (even 16K records_in_range() calls is 
   more than it makes sense to do in typical cases)
 - Don't call sel_arg->test_use_count() if we've already allocated 
   more than MAX_SEL_ARGs elements. The test will succeed but will take
   too much time for the test suite (and not provide much value).


mysql-test/r/range.result:
  BUG#26624: high mem usage (crash) in range optimizer
  Pushbuild fixes: make the test go faster
mysql-test/t/range.test:
  BUG#26624: high mem usage (crash) in range optimizer
  Pushbuild fixes: make the test go faster

3 files changed, 265 insertions, 39 deletions

diff --git a/mysql-test/r/range.result b/mysql-test/r/range.result
index 15d5f1a0183..4aaa114c0f9 100644
--- a/mysql-test/r/range.result
+++ b/mysql-test/r/range.result
@@ -710,23 +710,136 @@ index(c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12,c13,c14,c15,c16)
 );
 insert into t1 (c1) values ('1'),('1'),('1'),('1');
 select * from t1 where
-c1 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c2 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c3 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c4 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c5 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c6 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c7 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c8 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c9 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c10 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c11 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c12 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c13 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c14 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c15 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-and c16 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-;
+c1 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4",
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c2 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c3 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c4 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5", 
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c5 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4",
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c6 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4",
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c7 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c8 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c9 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+and c10 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+"abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+"abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+"abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+"abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+"abcdefg5", "123456785", "qwertyui5", "asddfg5",
+"abcdefg6", "123456786", "qwertyui6", "asddfg6",
+"abcdefg7", "123456787", "qwertyui7", "asddfg7",
+"abcdefg8", "123456788", "qwertyui8", "asddfg8",
+"abcdefg9", "123456789", "qwertyui9", "asddfg9",
+"abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+"abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+"abcdefgC", "12345678C", "qwertyuiC", "asddfgC");
 c1	c2	c3	c4	c5	c6	c7	c8	c9	c10	c11	c12	c13	c14	c15	c16
 drop table t1;
 End of 4.1 tests
diff --git a/mysql-test/t/range.test b/mysql-test/t/range.test
index 1e4cb91c03f..0dbfde92bd5 100644
--- a/mysql-test/t/range.test
+++ b/mysql-test/t/range.test
@@ -571,28 +571,139 @@ create table t1 (
   c13 char(10), c14 char(10), c15 char(10), c16 char(10),
   index(c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12,c13,c14,c15,c16)
 );
-
 insert into t1 (c1) values ('1'),('1'),('1'),('1');
 
 # This must run without crash and fast:
 select * from t1 where
-     c1 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c2 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c3 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c4 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c5 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c6 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c7 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c8 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c9 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c10 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c11 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c12 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c13 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c14 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c15 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
- and c16 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh")
-;
+     c1 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4",
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c2 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c3 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c4 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5", 
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c5 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4",
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c6 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4",
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c7 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c8 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c9 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC")
+ and c10 in ("abcdefgh", "123456789", "qwertyuio", "asddfgh", 
+            "abcdefg1", "123456781", "qwertyui1", "asddfg1", 
+            "abcdefg2", "123456782", "qwertyui2", "asddfg2", 
+            "abcdefg3", "123456783", "qwertyui3", "asddfg3", 
+            "abcdefg4", "123456784", "qwertyui4", "asddfg4", 
+            "abcdefg5", "123456785", "qwertyui5", "asddfg5",
+            "abcdefg6", "123456786", "qwertyui6", "asddfg6",
+            "abcdefg7", "123456787", "qwertyui7", "asddfg7",
+            "abcdefg8", "123456788", "qwertyui8", "asddfg8",
+            "abcdefg9", "123456789", "qwertyui9", "asddfg9",
+            "abcdefgA", "12345678A", "qwertyuiA", "asddfgA",
+            "abcdefgB", "12345678B", "qwertyuiB", "asddfgB",
+            "abcdefgC", "12345678C", "qwertyuiC", "asddfgC");
 drop table t1;
-
 --echo End of 4.1 tests
diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index ca8f31f5775..01b366077b0 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -241,7 +241,7 @@ public:
   enum leaf_color { BLACK,RED } color;
   enum Type { IMPOSSIBLE, MAYBE, MAYBE_KEY, KEY_RANGE } type;
 
-  enum { MAX_SEL_ARGS = 64000 };
+  enum { MAX_SEL_ARGS = 16000 };
 
   SEL_ARG() {}
   SEL_ARG(SEL_ARG &);
@@ -1640,7 +1640,8 @@ tree_and(PARAM *param,SEL_TREE *tree1,SEL_TREE *tree2)
       {
 	tree1->type= SEL_TREE::IMPOSSIBLE;
 #ifdef EXTRA_DEBUG
-        (*key1)->test_use_count(*key1);
+        if (param->alloced_sel_args < SEL_ARG::MAX_SEL_ARGS) 
+          (*key1)->test_use_count(*key1);
 #endif
 	break;
       }
@@ -1677,7 +1678,8 @@ tree_or(PARAM *param,SEL_TREE *tree1,SEL_TREE *tree2)
     {
       result=tree1;				// Added to tree1
 #ifdef EXTRA_DEBUG
-      (*key1)->test_use_count(*key1);
+      if (param->alloced_sel_args < SEL_ARG::MAX_SEL_ARGS) 
+        (*key1)->test_use_count(*key1);
 #endif
     }
   }