From 3bdfe4485999445061a3edc6308c0c6eaf6476b7 Mon Sep 17 00:00:00 2001
From: "jimw@mysql.com" <>
Date: Wed, 19 Jan 2005 12:23:24 -0800
Subject: [PATCH 1/2] Warn when mysqld starts up with lower_case_table_names=2
 but datadir is on a case-sensitive filesystem. (Bug #7887)

---
 sql/mysqld.cc | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index d1fef3519bf..b21b84a34e7 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -2913,6 +2913,17 @@ You should consider changing lower_case_table_names to 1 or 2",
       lower_case_table_names= 2;
     }
   }
+  else if (lower_case_table_names == 2 &&
+           (test_if_case_insensitive(mysql_real_data_home) == 0))
+  {
+    if (global_system_variables.log_warnings)
+      sql_print_warning("\
+You have forced lower_case_table_names to 2 through a command-line \
+option, even though your file system '%s' is case sensitive.  This means \
+that you can create a table that you can then no longer access. \
+You should consider changing lower_case_table_names to 0.",
+			mysql_real_data_home);
+  }
 
   select_thread=pthread_self();
   select_thread_in_use=1;

From fa1098618e506b09464a0c4b70c08b01a246cc66 Mon Sep 17 00:00:00 2001
From: "jimw@mysql.com" <>
Date: Mon, 24 Jan 2005 12:31:14 -0800
Subject: [PATCH 2/2] Set lower_case_file_system when it is being tested to
 check if lower_case_tables_names=2 is sensible. Related to Bug #7887.

---
 sql/mysqld.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index b21b84a34e7..425911570ef 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -2914,7 +2914,8 @@ You should consider changing lower_case_table_names to 1 or 2",
     }
   }
   else if (lower_case_table_names == 2 &&
-           (test_if_case_insensitive(mysql_real_data_home) == 0))
+           !(lower_case_file_system=
+             (test_if_case_insensitive(mysql_real_data_home) == 1)))
   {
     if (global_system_variables.log_warnings)
       sql_print_warning("\