Fix for bug #6859 (after Sanja's review)

Added check which throws ER_WRONG_OBJECT error in case the .frm
doesn't contain a valid table type (e.g. view or trigger)


mysql-test/r/create.result:
  Added test case for bug #6859
mysql-test/t/create.test:
  Add testcase for bug #6850

mysql-test/r/create.result

@@ -602,3 +602,10 @@ drop database mysqltest;
 create table test.t1 like x;
 ERROR 42000: Incorrect database name 'NULL'
 drop table if exists test.t1;
+create database mysqltest;
+use mysqltest;
+create view v1 as select 'foo' from dual;
+create table t1 like v1;
+ERROR HY000: 'mysqltest.v1' is not a table
+drop view v1;
+drop database mysqltest;

mysql-test/t/create.test

@@ -515,4 +515,14 @@ create table test.t1 like x;
 drop table if exists test.t1;
 --enable_warnings
 
+#
+# Bug #6859: Bogus error message on attempt to CREATE TABLE t LIKE view
+#
+create database mysqltest;
+use mysqltest;
+create view v1 as select 'foo' from dual;
+--error 1347
+create table t1 like v1;
+drop view v1;
+drop database mysqltest;
 # End of 4.1 tests

sql/sql_table.cc

@@ -2629,6 +2629,15 @@ bool mysql_create_like_table(THD* thd, TABLE_LIST* table,
     }
   }
 
+  /* 
+     create like should be not allowed for Views, Triggers, ... 
+  */
+  if (mysql_frm_type(src_path) != FRMTYPE_TABLE)
+  {
+    my_error(ER_WRONG_OBJECT, MYF(0), src_db, src_table, "a table");
+    goto err;
+  }
+
   /*
     Validate the destination table