Bug#17498 failed to put data file in custom directory use "data directory" option

- Using DATA/INDEX DIRECTORY option on Windows put data/index file into
  default directory because the OS doesn't support readlink().
- The procedure for changing data/index file directory is 
  different under Windows.
- With this fix we report a warning if DATA/INDEX option is used,
  but OS doesn't support readlink().


mysql-test/r/windows.result:
  - updated result file.
mysql-test/t/windows.test:
  - Added test case to verify we get warnings if we specify DATA/INDEX
    DIRECTORY on a platform which doesn't support readlink().
sql/sql_parse.cc:
  - Added warnings if DATA/INDEX DIRECTORY option is used but not supported
    by the target platform.

1 files changed, 6 insertions, 0 deletions

diff --git a/mysql-test/r/windows.result b/mysql-test/r/windows.result
index 039c5b1476e..1702fd28c18 100644
--- a/mysql-test/r/windows.result
+++ b/mysql-test/r/windows.result
@@ -6,3 +6,9 @@ use prn;
 ERROR 42000: Unknown database 'prn'
 create table nu (a int);
 drop table nu;
+drop table if exists t1;
+CREATE TABLE t1 ( `ID` int(6) ) data directory 'c:/tmp/' index directory 'c:/tmp/' engine=MyISAM;
+Warnings:
+Warning	0	DATA DIRECTORY option ignored
+Warning	0	INDEX DIRECTORY option ignored
+drop table t1;