Bug#30459 Partitioning across disks failing on Windows

Problem was that there are no support for symlinked files on Windows for
mysqld. So we fail when trying to create them.

Solution: Ignore the DATA/INDEX DIRECTORY clause for partitions and push
a warning. (Just like a MyISAM table)


mysql-test/r/partition.result:
  Bug#30459 Partitioning across disks failing on Windows
  Moved symlink specific tests to partition_symlink
  result file
mysql-test/r/partition_symlink.result:
  Bug#30459 Partitioning across disks failing on Windows
  Moved symlink specific tests from partition.test
  result file
mysql-test/r/partition_windows.result:
  Bug#30459 Partitioning across disks failing on Windows
  result file
mysql-test/t/partition.test:
  Bug#30459 Partitioning across disks failing on Windows
  Moved symlink specific tests to partition_symlink
  test file
mysql-test/t/partition_symlink.test:
  Bug#30459 Partitioning across disks failing on Windows
  Moved symlink specific tests from partition.test
  test file
mysql-test/t/partition_windows.test:
  Bug#30459 Partitioning across disks failing on Windows
  test file

1 files changed, 12 insertions, 2 deletions

diff --git a/sql/partition_info.cc b/sql/partition_info.cc
index 3b580422da1..16433497efd 100644
--- a/sql/partition_info.cc
+++ b/sql/partition_info.cc
@@ -794,8 +794,18 @@ bool partition_info::check_partition_info(THD *thd, handlerton **eng_type,
       partition_element *part_elem= part_it++;
       if (part_elem->engine_type == NULL)
         part_elem->engine_type= default_engine_type;
-      if (thd->variables.sql_mode & MODE_NO_DIR_IN_CREATE)
-        part_elem->data_file_name= part_elem->index_file_name= 0;
+#ifdef HAVE_READLINK
+      if (!my_use_symdir || (thd->variables.sql_mode & MODE_NO_DIR_IN_CREATE))
+#endif
+      {
+        if (part_elem->data_file_name)
+          push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, 0,
+                       "DATA DIRECTORY option ignored");
+        if (part_elem->index_file_name)
+          push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, 0,
+                       "INDEX DIRECTORY option ignored");
+        part_elem->data_file_name= part_elem->index_file_name= NULL;
+      }
       if (!is_sub_partitioned())
       {
         if (check_table_name(part_elem->partition_name,