bug#6275 "client_test" fail in 4.1.7 make test

bug#6911 resultset metadata always return client character set

mysql-test/r/type_enum.result

@@ -1731,9 +1731,9 @@ alter table t1 add b set ('Y','N') CHARACTER SET utf8 COLLATE utf8_bin;
 alter table t1 add c enum ('Y','N') CHARACTER SET utf8 COLLATE utf8_bin;
 select * from t1;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Name	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
-def	test	t1	t1	a	a	254	3	1	Y	384	0	8
-def	test	t1	t1	b	b	254	9	0	Y	2176	0	8
-def	test	t1	t1	c	c	254	3	0	Y	384	0	8
+def	test	t1	t1	a	a	254	1	1	Y	384	0	8
+def	test	t1	t1	b	b	254	3	0	Y	2176	0	8
+def	test	t1	t1	c	c	254	1	0	Y	384	0	8
 a	b	c
 Y	NULL	NULL
 drop table t1;

sql/item.h

@@ -765,7 +765,7 @@ class Item_empty_string :public Item_string
 public:
   Item_empty_string(const char *header,uint length, CHARSET_INFO *cs= NULL) :
     Item_string("",0, cs ? cs : &my_charset_bin)
-    { name=(char*) header; max_length=length;}
+    { name=(char*) header; max_length= cs ? length * cs->mbmaxlen : length; }
   void make_field(Send_field *field);
 };
 

sql/protocol.cc

@@ -549,10 +549,18 @@ bool Protocol::send_fields(List<Item> *list, uint flag)
       pos= (char*) local_packet->ptr()+local_packet->length();
       *pos++= 12;				// Length of packed fields
       if (item->collation.collation == &my_charset_bin || thd_charset == NULL)
+      {
+        /* No conversion */
         int2store(pos, field.charsetnr);
+        int4store(pos+2, field.length);
+      }
       else
+      {
+        /* With conversion */
         int2store(pos, thd_charset->number);
-      int4store(pos+2, field.length);
+        uint char_len= field.length / item->collation.collation->mbmaxlen;
+        int4store(pos+2, char_len * thd_charset->mbmaxlen);
+      }
       pos[6]= field.type;
       int2store(pos+7,field.flags);
       pos[9]= (char) field.decimals;

tests/client_test.c

@@ -1101,7 +1101,8 @@ static void test_prepare_simple()
   mysql_stmt_close(stmt);
 
   /* update */
-  strmov(query, "UPDATE test_prepare_simple SET id=? WHERE id=? AND name= ?");
+  strmov(query, "UPDATE test_prepare_simple SET id=? "
+                "WHERE id=? AND CONVERT(name USING utf8)= ?");
   stmt= mysql_simple_prepare(mysql, query);
   check_stmt(stmt);
 
@@ -1129,7 +1130,8 @@ static void test_prepare_simple()
   mysql_stmt_close(stmt);
 
   /* select */
-  strmov(query, "SELECT * FROM test_prepare_simple WHERE id=? AND name= ?");
+  strmov(query, "SELECT * FROM test_prepare_simple WHERE id=? "
+                "AND CONVERT(name USING utf8)= ?");
   stmt= mysql_simple_prepare(mysql, query);
   check_stmt(stmt);
 
@@ -1158,7 +1160,7 @@ static void test_prepare_field_result()
 
   rc= mysql_query(mysql, "CREATE TABLE test_prepare_field_result(int_c int, "
                          "var_c varchar(50), ts_c timestamp(14), "
-                         "char_c char(3), date_c date, extra tinyint)");
+                         "char_c char(4), date_c date, extra tinyint)");
   myquery(rc);
 
   /* insert */
@@ -1184,8 +1186,8 @@ static void test_prepare_field_result()
                        "t1", "test_prepare_field_result", current_db, 10, 0);
   verify_prepare_field(result, 3, "ts_c", "ts_c", MYSQL_TYPE_TIMESTAMP,
                        "t1", "test_prepare_field_result", current_db, 19, 0);
-  verify_prepare_field(result, 4, "char_c", "char_c", MYSQL_TYPE_STRING,
-                       "t1", "test_prepare_field_result", current_db, 3, 0);
+  verify_prepare_field(result, 4, "char_c", "char_c", MYSQL_TYPE_VAR_STRING,
+                       "t1", "test_prepare_field_result", current_db, 4, 0);
 
   verify_field_count(result, 5);
   mysql_free_result(result);
@@ -1921,7 +1923,8 @@ static void test_select()
   rc= mysql_commit(mysql);
   myquery(rc);
 
-  strmov(query, "SELECT * FROM test_select WHERE id= ? AND name=?");
+  strmov(query, "SELECT * FROM test_select WHERE id= ? "
+                "AND CONVERT(name USING utf8) =?");
   stmt= mysql_simple_prepare(mysql, query);
   check_stmt(stmt);
 
@@ -1981,7 +1984,8 @@ static void test_ps_conj_select()
                           "(2, 'hh', 'hh'), (1, 'ii', 'ii'), (2, 'ii', 'ii')");
   myquery(rc);
 
-  strmov(query, "select id1, value1 from t1 where id1= ? or value1= ?");
+  strmov(query, "select id1, value1 from t1 where id1= ? or "
+                "CONVERT(value1 USING utf8)= ?");
   stmt= mysql_simple_prepare(mysql, query);
   check_stmt(stmt);
 
@@ -2060,7 +2064,8 @@ session_id  char(9) NOT NULL, \
                          "(\"abx\", 1, 2, 3, 2003-08-30)");
   myquery(rc);
 
-  strmov(query, "SELECT * FROM test_select WHERE session_id= ?");
+  strmov(query, "SELECT * FROM test_select WHERE "
+                "CONVERT(session_id USING utf8)= ?");
   stmt= mysql_simple_prepare(mysql, query);
   check_stmt(stmt);
 
@@ -2898,7 +2903,8 @@ static void test_simple_delete()
   myquery(rc);
 
   /* insert by prepare */
-  strmov(query, "DELETE FROM test_simple_delete WHERE col1= ? AND col2= ? AND col3= 100");
+  strmov(query, "DELETE FROM test_simple_delete WHERE col1= ? AND "
+                "CONVERT(col2 USING utf8)= ? AND col3= 100");
   stmt= mysql_simple_prepare(mysql, query);
   check_stmt(stmt);
 
@@ -4866,7 +4872,8 @@ static void test_multi_stmt()
 
   /* alter the table schema now */
   stmt1= mysql_simple_prepare(mysql, "DELETE FROM test_multi_table "
-                                     "WHERE id= ? AND name=?");
+                                     "WHERE id= ? AND "
+                                     "CONVERT(name USING utf8)=?");
   check_stmt(stmt1);
 
   verify_param_count(stmt1, 2);
@@ -6632,7 +6639,7 @@ static void test_field_misc()
                        "@@table_type", "",   /* field and its org name */
                        MYSQL_TYPE_STRING,   /* field type */
                        "", "",              /* table and its org name */
-                       "", type_length*3, 0);   /* db name, length */
+                       "", type_length, 0);   /* db name, length */
 
   mysql_free_result(result);
   mysql_stmt_close(stmt);