From 1494eabc85f8677de7eb8ed58b59c1097b169b14 Mon Sep 17 00:00:00 2001
From: "gluh@mysql.com/eagle.(none)" <>
Date: Fri, 28 Sep 2007 17:33:30 +0500
Subject: [PATCH] Bug#30795 Query on INFORMATION_SCHEMA.SCHEMATA, wrong result
 skip the check of directory presence for 'information_schema' name

---
 mysql-test/r/information_schema.result | 4 ++++
 mysql-test/t/information_schema.test   | 6 ++++++
 sql/sql_show.cc                        | 3 ++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/mysql-test/r/information_schema.result b/mysql-test/r/information_schema.result
index 37810e67f2a..cd0f9a7a172 100644
--- a/mysql-test/r/information_schema.result
+++ b/mysql-test/r/information_schema.result
@@ -1552,4 +1552,8 @@ VIEW_DEFINITION
 SELECT *
 FROM INFORMATION_SCHEMA.TABLES
 DROP VIEW v1;
+SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA
+WHERE SCHEMA_NAME ='information_schema';
+SCHEMA_NAME
+information_schema
 End of 5.1 tests.
diff --git a/mysql-test/t/information_schema.test b/mysql-test/t/information_schema.test
index 90671c4e8fd..c2c0f79d66b 100644
--- a/mysql-test/t/information_schema.test
+++ b/mysql-test/t/information_schema.test
@@ -1188,4 +1188,10 @@ FROM INFORMATION_SCHEMA.TABLES;
 SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS where TABLE_NAME = 'v1';
 DROP VIEW v1;
 
+#
+# Bug#30795 Query on INFORMATION_SCHEMA.SCHEMATA, wrong result
+#
+SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA
+WHERE SCHEMA_NAME ='information_schema';
+
 --echo End of 5.1 tests.
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index f7813b73089..cc0cda42321 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -3339,7 +3339,8 @@ int fill_schema_schemata(THD *thd, TABLE_LIST *tables, COND *cond)
   /*
     If we have lookup db value we should check that the database exists
   */
-  if(lookup_field_vals.db_value.str && !lookup_field_vals.wild_db_value)
+  if(lookup_field_vals.db_value.str && !lookup_field_vals.wild_db_value &&
+     !with_i_schema)
   {
     char path[FN_REFLEN+16];
     uint path_len;