bk commit into 4.1 tree (acurtis:1.2501) BUG#8706

[antony]

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4.1 repository of antony. When antony does a push these changes will
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ChangeSet
  1.2501 06/06/14 20:01:37 acurtis@stripped +3 -0
  Bug#8706
    "temporary table with data directory option fails"
    myisam should not use user-specified table name when creating
    temporary tables and use generated connection specific real name.
    Test included.

  mysql-test/t/myisam.test
    1.46 06/06/14 20:01:35 acurtis@stripped +31 -0
    Bug#8706
      Test for bug

  mysql-test/r/myisam.result
    1.60 06/06/14 20:01:35 acurtis@stripped +21 -0
    Bug#8706
      Test for bug

  myisam/mi_create.c
    1.48 06/06/14 20:01:35 acurtis@stripped +25 -7
    Bug#8706
      When creating a temporary table with directory override, ensure that
      the real filename is using the hidden temporary name otherwise
      multiple clients cannot have same named temporary tables without
      conflict.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	acurtis
# Host:	ltamd64.xiphis.org
# Root:	/home/antony/work2/p2-bug8706.2

--- 1.47/myisam/mi_create.c	2005-07-23 08:03:31 -07:00
+++ 1.48/myisam/mi_create.c	2006-06-14 20:01:35 -07:00
@@ -519,9 +519,18 @@ int mi_create(const char *name,uint keys
 
   if (ci->index_file_name)
   {
-    fn_format(filename, ci->index_file_name,"",MI_NAME_IEXT,4);
-    fn_format(linkname,name, "",MI_NAME_IEXT,4);
-    linkname_ptr=linkname;
+    if (options & HA_OPTION_TMP_TABLE)
+    {
+      char *path= strrchr(ci->index_file_name, FN_LIBCHAR);
+      if (path) *path= '\0';
+      fn_format(filename, name, ci->index_file_name, MI_NAME_IEXT,
+                MY_REPLACE_DIR | MY_UNPACK_FILENAME);
+    }
+    else
+      fn_format(filename, ci->index_file_name, "",
+                MI_NAME_IEXT, MY_UNPACK_FILENAME);
+    fn_format(linkname,name, "", MI_NAME_IEXT, MY_UNPACK_FILENAME);
+    linkname_ptr= linkname;
     /*
       Don't create the table if the link or file exists to ensure that one
       doesn't accidently destroy another table.
@@ -575,10 +584,19 @@ int mi_create(const char *name,uint keys
     {
       if (ci->data_file_name)
       {
-	fn_format(filename, ci->data_file_name,"",MI_NAME_DEXT,4);
-	fn_format(linkname, name, "",MI_NAME_DEXT,4);
-	linkname_ptr=linkname;
-	create_flag=0;
+        if (options & HA_OPTION_TMP_TABLE)
+        {
+          char *path= strrchr(ci->data_file_name, FN_LIBCHAR);
+          if (path) *path= '\0';
+          fn_format(filename, name, ci->data_file_name, MI_NAME_DEXT,
+                    MY_REPLACE_DIR | MY_UNPACK_FILENAME);
+        }
+        else
+          fn_format(filename, ci->data_file_name, "",
+                    MI_NAME_DEXT, MY_UNPACK_FILENAME);
+	fn_format(linkname, name, "", MI_NAME_DEXT, MY_UNPACK_FILENAME);
+	linkname_ptr= linkname;
+	create_flag= 0;
       }
       else
       {

--- 1.59/mysql-test/r/myisam.result	2006-03-10 06:03:00 -08:00
+++ 1.60/mysql-test/r/myisam.result	2006-06-14 20:01:35 -07:00
@@ -748,3 +748,24 @@ select count(id1) from t1 where id2 = 10
 count(id1)
 5
 drop table t1;
+show create table t1;
+Table	Create Table
+t1	CREATE TEMPORARY TABLE `t1` (
+  `a` int(11) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+show create table t1;
+Table	Create Table
+t1	CREATE TEMPORARY TABLE `t1` (
+  `a` int(11) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+create table t1 (a int) engine=myisam select 42 a;
+select * from t1;
+a
+9
+select * from t1;
+a
+99
+select * from t1;
+a
+42
+drop table t1;

--- 1.45/mysql-test/t/myisam.test	2006-03-10 06:03:00 -08:00
+++ 1.46/mysql-test/t/myisam.test	2006-06-14 20:01:35 -07:00
@@ -705,4 +705,35 @@ select count(*)   from t1 where id2 = 10
 select count(id1) from t1 where id2 = 10;
 drop table t1;
 
+#
+# Bug#8706 - temporary table with data directory option fails
+#
+connect (session1,localhost,root,,);
+connect (session2,localhost,root,,);
+
+connection session1;
+disable_query_log;
+eval create temporary table t1 (a int) engine=myisam data
directory="$MYSQL_TEST_DIR/var/tmp" select 9 a;
+enable_query_log;
+show create table t1;
+
+connection session2;
+disable_query_log;
+eval create temporary table t1 (a int) engine=myisam data
directory="$MYSQL_TEST_DIR/var/tmp" select 99 a;
+enable_query_log;
+show create table t1;
+
+connection default;
+create table t1 (a int) engine=myisam select 42 a;
+
+connection session1;
+select * from t1;
+disconnect session1;
+connection session2;
+select * from t1;
+disconnect session2;
+connection default;
+select * from t1;
+drop table t1;
+
 # End of 4.1 tests