Merge zippy.(none):/home/cmiller/work/mysql/merge/tmp_merge

into  zippy.(none):/home/cmiller/work/mysql/merge/mysql-5.1-new


client/mysql.cc:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/rpl_temporary.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/t/rpl_temporary.test:
  Auto merged
sql/item_strfunc.cc:
  Auto merged

client/mysql.cc

@@ -448,6 +448,14 @@ int main(int argc,char *argv[])
 				 MYF(MY_WME));
       if (histfile)
 	sprintf(histfile,"%s/.mysql_history",getenv("HOME"));
+      char link_name[FN_REFLEN];
+      if (my_readlink(link_name, histfile, 0) == 0 &&
+          strncmp(link_name, "/dev/null", 10) == 0)
+      {
+        /* The .mysql_history file is a symlink to /dev/null, don't use it */
+        my_free(histfile, MYF(MY_ALLOW_ZERO_PTR));
+        histfile= 0;
+      }
     }
     if (histfile)
     {
@@ -484,7 +492,7 @@ sig_handler mysql_end(int sig)
 {
   mysql_close(&mysql);
 #ifdef HAVE_READLINE
-  if (!status.batch && !quick && !opt_html && !opt_xml)
+  if (!status.batch && !quick && !opt_html && !opt_xml && histfile)
   {
     /* write-history */
     if (verbose)

include/sslopt-longopts.h

@@ -39,7 +39,7 @@
    0, 0, 0, 0, 0, 0},
 #ifdef MYSQL_CLIENT
   {"ssl-verify-server-cert", OPT_SSL_VERIFY_SERVER_CERT,
-   "Verify servers \"Common Name\" in it's cert against hostname used when connecting. This option is disabled by default.",
+   "Verify server's \"Common Name\" in its cert against hostname used when connecting. This option is disabled by default.",
    (gptr*) &opt_ssl_verify_server_cert, (gptr*) &opt_ssl_verify_server_cert,
     0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
 #endif

mysql-test/r/func_str.result

@@ -1017,6 +1017,13 @@ t
 1000000
 1      
 drop table t1;
+select load_file("lkjlkj");
+load_file("lkjlkj")
+NULL
+select ifnull(load_file("lkjlkj"),"it's null");
+ifnull(load_file("lkjlkj"),"it's null")
+it's null
+End of 4.1 tests
 create table t1 (d decimal default null);
 insert into t1 values (null);
 select format(d, 2) from t1;

mysql-test/r/rpl_temporary.result

@@ -94,8 +94,6 @@ create temporary table t102 (id int);
 set @session.pseudo_thread_id=200;
 create temporary table t201 (id int);
 create temporary table `#not_user_table_prefixed_with_hash_sign_no_harm` (id int);
-set @con1_id=connection_id();
-kill @con1_id;
 create table t1(f int);
 insert into t1 values (1);
 select * from t1 /* must be 1 */;

mysql-test/r/select.result

@@ -3427,3 +3427,22 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	A	range	PRIMARY	PRIMARY	12	NULL	3	Using where
 1	SIMPLE	B	ref	PRIMARY	PRIMARY	8	const,test.A.e	10	
 drop table t1, t2;
+CREATE TABLE t1 (a int PRIMARY KEY, b int, INDEX(b));
+INSERT INTO t1 VALUES (1, 3), (9,4), (7,5), (4,5), (6,2),
+(3,1), (5,1), (8,9), (2,2), (0,9);
+CREATE TABLE t2 (c int, d int, f int, INDEX(c,f));
+INSERT INTO t2 VALUES
+(1,0,0), (1,0,1), (2,0,0), (2,0,1), (3,0,0), (4,0,1),
+(5,0,0), (5,0,1), (6,0,0), (0,0,1), (7,0,0), (7,0,1),
+(0,0,0), (0,0,1), (8,0,0), (8,0,1), (9,0,0), (9,0,1);
+EXPLAIN
+SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	PRIMARY,b	b	5	NULL	3	Using where
+1	SIMPLE	t2	ref	c	c	5	test.t1.a	2	Using where
+EXPLAIN
+SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6 AND a > 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	PRIMARY,b	b	5	NULL	3	Using where
+1	SIMPLE	t2	ref	c	c	5	test.t1.a	2	Using where
+DROP TABLE t1, t2;

mysql-test/t/func_str.test

@@ -666,7 +666,14 @@ select rpad(i, 7, ' ') as t from t1;
 --disable_metadata
 drop table t1;
 
-# End of 4.1 tests
+#
+# Bug #10418: LOAD_FILE does not behave like in manual if file does not exist
+#
+
+select load_file("lkjlkj");
+select ifnull(load_file("lkjlkj"),"it's null");
+
+--echo End of 4.1 tests
 
 #
 # Bug #13361: SELECT FORMAT(<decimal field with null>, 2) crashes

mysql-test/t/outfile.test

@@ -40,7 +40,6 @@ eval select * into dumpfile "../tmp/outfile-test.2" from t1;
 --error 1086
 eval select * into dumpfile "../tmp/outfile-test.3" from t1;
 enable_query_log;
---error 13,2
 select load_file(concat(@tmpdir,"/outfile-test.not-exist"));
 --exec rm $MYSQLTEST_VARDIR/tmp/outfile-test.1
 --exec rm $MYSQLTEST_VARDIR/tmp/outfile-test.2

mysql-test/t/rpl_temporary.test

@@ -171,8 +171,18 @@ create temporary table t102 (id int);
 set @session.pseudo_thread_id=200;
 create temporary table t201 (id int);
 create temporary table `#not_user_table_prefixed_with_hash_sign_no_harm` (id int);
-set @con1_id=connection_id();
-kill @con1_id;
+
+#
+# Don't kill our own connection to the server as
+# the result code differs depending on platform.
+#
+# Select the id to kill into a variable of mysqltest
+let $con1_id= `select connection_id()`;
+# Switch connection to avoid killing our own connection
+connection master;
+--disable_query_log
+eval kill $con1_id;
+--enable_query_log
 
 #now do something to show that slave is ok after DROP temp tables
 connection master;

mysql-test/t/select.test

@@ -2899,3 +2899,24 @@ select 'In next EXPLAIN, B.rows must be exactly 10:' Z;
 explain select * from t2 A, t2 B where A.a=5 and A.b=5 and A.C<5
           and B.a=5 and B.b=A.e and (B.b =1 or B.b = 3 or B.b=5);
 drop table t1, t2;
+
+#
+#Bug #18940: selection of optimal execution plan caused by equality
+#            propagation (the bug was fixed by the patch for bug #17379)
+
+CREATE TABLE t1 (a int PRIMARY KEY, b int, INDEX(b));
+INSERT INTO t1 VALUES (1, 3), (9,4), (7,5), (4,5), (6,2),
+                      (3,1), (5,1), (8,9), (2,2), (0,9);
+
+CREATE TABLE t2 (c int, d int, f int, INDEX(c,f));
+INSERT INTO t2 VALUES
+ (1,0,0), (1,0,1), (2,0,0), (2,0,1), (3,0,0), (4,0,1),
+ (5,0,0), (5,0,1), (6,0,0), (0,0,1), (7,0,0), (7,0,1),
+ (0,0,0), (0,0,1), (8,0,0), (8,0,1), (9,0,0), (9,0,1);
+
+EXPLAIN
+SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6;
+EXPLAIN
+SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6 AND a > 0;
+
+DROP TABLE t1, t2;

sql/item_strfunc.cc

@@ -2579,7 +2579,7 @@ String *Item_load_file::val_str(String *str)
   (void) fn_format(path, file_name->c_ptr(), mysql_real_data_home, "",
 		   MY_RELATIVE_PATH | MY_UNPACK_FILENAME);
 
-  if (!my_stat(path, &stat_info, MYF(MY_WME)))
+  if (!my_stat(path, &stat_info, MYF(0)))
     goto err;
 
   if (!(stat_info.st_mode & S_IROTH))