Fix for bug #30088: Can't disable myisam-recover by a value of "".

  - test result.

Problem: we don't proper handle "" value of the --myisam-recover option.

Fix: turn off myisam recovering if --myisam-recover="" is set.


mysql-test/r/show_check.result:
  Fix for bug #30088: Can't disable myisam-recover by a value of "".
    - test result.
mysql-test/t/show_check-master.opt:
  Fix for bug #30088: Can't disable myisam-recover by a value of "".
    - test case.
mysql-test/t/show_check.test:
  Fix for bug #30088: Can't disable myisam-recover by a value of "".
    - test case.
sql/mysqld.cc:
  Fix for bug #30088: Can't disable myisam-recover by a value of "".
    - turn off myisam recovering if --myisam-recover="" is passed.

1 files changed, 6 insertions, 1 deletions

diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 9eb3d157dcf..57d1656736d 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -7241,11 +7241,16 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
 #endif /* HAVE_INNOBASE_DB */
   case OPT_MYISAM_RECOVER:
   {
-    if (!argument || !argument[0])
+    if (!argument)
     {
       myisam_recover_options=    HA_RECOVER_DEFAULT;
       myisam_recover_options_str= myisam_recover_typelib.type_names[0];
     }
+    else if (!argument[0])
+    {
+      myisam_recover_options= HA_RECOVER_NONE;
+      myisam_recover_options_str= "OFF";
+    }
     else
     {
       myisam_recover_options_str=argument;