fixed comparation of tables/database names with --lower_case_table_names (BUG#2880)

mysql-test/r/lowercase_table.result:
  test of multi-update/multi-delete
mysql-test/t/lowercase_table.test:
  test of multi-update/multi-delete
sql/sql_cache.cc:
  correct databese names comparation
sql/sql_parse.cc:
  correct table names comparation in multi-delete

5 files changed, 72 insertions, 0 deletions

diff --git a/mysql-test/r/lowercase_table.result b/mysql-test/r/lowercase_table.result
index 0ba4a4be945..f4e7723a608 100644
--- a/mysql-test/r/lowercase_table.result
+++ b/mysql-test/r/lowercase_table.result
@@ -42,3 +42,10 @@ select count(bags.a) from t1 as Bags;
 count(bags.a)
 0
 drop table t1;
+create table t1 (a int);
+create table t2 (a int);
+delete p1.*,P2.* from t1 as p1, t2 as p2 where p1.a=P2.a;
+delete P1.*,p2.* from t1 as P1, t2 as P2 where P1.a=p2.a;
+update t1 as p1, t2 as p2 SET p1.a=1,P2.a=1 where p1.a=P2.a;
+update t1 as P1, t2 as P2 SET P1.a=1,p2.a=1 where P1.a=p2.a;
+drop table t1,t2;
diff --git a/mysql-test/r/lowercase_table_qcache.result b/mysql-test/r/lowercase_table_qcache.result
new file mode 100644
index 00000000000..f8d34e0f592
--- /dev/null
+++ b/mysql-test/r/lowercase_table_qcache.result
@@ -0,0 +1,24 @@
+set GLOBAL query_cache_size=1355776;
+drop database if exists MySQLtesT;
+create database MySQLtesT;
+create table MySQLtesT.t1 (a int);
+select * from MySQLtesT.t1;
+a
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	1
+drop database mysqltest;
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	0
+use MySQL;
+select * from db;
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	0
+use test;
+select * from MySQL.db;
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	0
+set GLOBAL query_cache_size=0;
diff --git a/mysql-test/t/lowercase_table.test b/mysql-test/t/lowercase_table.test
index 601f1734ac6..42e9cdc9f3d 100644
--- a/mysql-test/t/lowercase_table.test
+++ b/mysql-test/t/lowercase_table.test
@@ -30,3 +30,14 @@ select count(*) from t1;
 select count(T1.a) from t1;
 select count(bags.a) from t1 as Bags;
 drop table t1;
+
+#
+# multiupdate/delete & --lower-case-table-names
+#
+create table t1 (a int);
+create table t2 (a int);
+delete p1.*,P2.* from t1 as p1, t2 as p2 where p1.a=P2.a;
+delete P1.*,p2.* from t1 as P1, t2 as P2 where P1.a=p2.a;
+update t1 as p1, t2 as p2 SET p1.a=1,P2.a=1 where p1.a=P2.a;
+update t1 as P1, t2 as P2 SET P1.a=1,p2.a=1 where P1.a=p2.a;
+drop table t1,t2;
diff --git a/mysql-test/t/lowercase_table_qcache-master.opt b/mysql-test/t/lowercase_table_qcache-master.opt
new file mode 100644
index 00000000000..c718e2feb1b
--- /dev/null
+++ b/mysql-test/t/lowercase_table_qcache-master.opt
@@ -0,0 +1 @@
+--lower_case_table_names
diff --git a/mysql-test/t/lowercase_table_qcache.test b/mysql-test/t/lowercase_table_qcache.test
new file mode 100644
index 00000000000..7416de25e1d
--- /dev/null
+++ b/mysql-test/t/lowercase_table_qcache.test
@@ -0,0 +1,29 @@
+-- source include/have_query_cache.inc
+#
+# Test of query cache with --lower-case-table-names
+#
+set GLOBAL query_cache_size=1355776;
+
+--disable_warnings
+drop database if exists MySQLtesT;
+--enable_warnings
+
+create database MySQLtesT;
+create table MySQLtesT.t1 (a int);
+select * from MySQLtesT.t1;
+show status like "Qcache_queries_in_cache";
+drop database mysqltest;
+show status like "Qcache_queries_in_cache";
+
+use MySQL;
+disable_result_log;
+select * from db;
+enable_result_log;
+show status like "Qcache_queries_in_cache";
+use test;
+disable_result_log;
+select * from MySQL.db;
+enable_result_log;
+show status like "Qcache_queries_in_cache";
+
+set GLOBAL query_cache_size=0;
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