refs #5334 add tests for int expansion that is not supported inplace

git-svn-id: file:///svn/mysql/tests/mysql-test@47626 c7de825b-a66e-492c-adef-691d508d4ae1

mysql-test/suite/tokudb.change_column/t/README

+= Hot column change operations =
+ * varchar(X) -> varchar(Y) for all 0 <= X <= Y < 64K
+ * varchar(X) not null -> varchar(Y) not null for all 0 <= X <= Y < 64K
+ * varbinary(X) -> varbinary(Y) for all 0 <= X <= Y < 64K
+ * varbinary(X) not null -> varbinary(Y) not null for all 0 <= X <= Y < 64K
+ * tinyint -> smallint -> mediumint -> int -> bigint
+ * tinyint unsigned -> smallint unsigned-> mediumint unsigned -> int unsigned -> bigint unsigned 
+ * tinyint not null -> smallint not null -> mediumint not null -> int not null -> bitint not null
+ * tinyint unsigned not null -> smallint unsigned not null -> mediumint unsigned not null -> int unsigned not null -> bitint unsigned not null
+ * char(X) -> char(Y) for all 0 <= X <= Y < 256
+ * char(X) not null -> char(Y) not null for all 0 <= X <= Y < 256
+ * binary(X) -> binary(Y) for all 0 <= X <= Y < 256
+ * binary(X) not null -> binary(Y) not null for all 0 <= X <= Y < 256
+
+= Changes to the row value = 
+ * Variable length offsets expand from 1 to 2 bytes
+ * Fixed field value is expanded
+ * Sign bit for signed integers is expanded
+ * Pad for fixed char fields is a space
+ * Pad for fixed binary fields is a zero
+
+= Restrictions =
+ * Changed field is not part of any key
+
+= Tests =
+

mysql-test/suite/tokudb.change_column/t/change_char.py

@@ -21,7 +21,7 @@ def gen_test(n):
     print "DROP TABLE t;"
 
 def main():
-    print "# this test is generated by change_int.py"
+    print "# this test is generated by change_char.py"
     print "--disable_warnings"
     print "DROP TABLE IF EXISTS t,tt;"
     print "--enable_warnings"

mysql-test/suite/tokudb.change_column/t/change_char.test

-# this test is generated by change_int.py
+# this test is generated by change_char.py
 --disable_warnings
 DROP TABLE IF EXISTS t,tt;
 --enable_warnings

mysql-test/suite/tokudb.change_column/t/change_int_not_supported.py

+#!/usr/bin/env python
+import sys
+def supported(from_int, from_modifier, to_int, to_modifer):
+    if from_modifier != to_modifer:
+        return False
+    if from_int > to_int:
+        return False
+    return True
+def gen_tests_for_int(from_int, from_modifier, int_types, modifiers):
+    for to_int in range(len(int_types)):
+        for to_modifer in range(len(modifiers)):
+            print
+            print "CREATE TABLE t (a %s %s);" % (int_types[from_int], modifiers[from_modifier])
+            if not supported(from_int, from_modifier, to_int, to_modifer):
+                print "--replace_regex /MariaDB/XYZ/ /MySQL/XYZ/"
+                print "--error ER_UNSUPPORTED_EXTENSION"
+            print "ALTER TABLE t CHANGE COLUMN a a %s %s;" % (int_types[to_int], modifiers[to_modifer])
+            print "DROP TABLE t;"
+def gen_tests(int_types, modifiers):
+    for from_int in range(len(int_types)):
+        for from_modifier in range(len(modifiers)):
+            gen_tests_for_int(from_int, from_modifier, int_types, modifiers)
+def main():
+    print "# this test is generated by change_int_null.py"
+    print "--disable_warnings"
+    print "DROP TABLE IF EXISTS t;"
+    print "--enable_warnings"
+    print "SET SESSION DEFAULT_STORAGE_ENGINE=\"TokuDB\";"
+    print "SET SESSION TOKUDB_DISABLE_SLOW_ALTER=1;"
+    gen_tests(
+        [ "TINYINT", "SMALLINT", "MEDIUMINT", "INT", "BIGINT" ], 
+        [ "", "NOT NULL", "UNSIGNED", "UNSIGNED NOT NULL" ]
+    )
+    return 0
+sys.exit(main())