Bug#7219 information_schema: errors in "columns"

changed field names in 'collations' table(discussed with PGulutzan)

mysql-test/r/information_schema.result

@@ -172,7 +172,7 @@ CHARACTER_SET_NAME	DEFAULT_COLLATE_NAME	DESCRIPTION	MAXLEN
 latin1	latin1_swedish_ci	ISO 8859-1 West European	1
 select * from information_schema.COLLATIONS
 where COLLATION_NAME like 'latin1%';
-COLLATION_NAME	CHARSET	ID	DEFAULT	COMPILED	SORTLEN
+COLLATION_NAME	CHARACTER_SET_NAME	ID	IS_DEFAULT	IS_COMPILED	SORTLEN
 latin1_german1_ci	latin1	5			0
 latin1_swedish_ci	latin1	8	Yes	Yes	1
 latin1_danish_ci	latin1	15			0
@@ -192,7 +192,7 @@ latin1_general_ci	latin1	48			0
 latin1_general_cs	latin1	49			0
 latin1_spanish_ci	latin1	94			0
 SHOW COLLATION * LIKE 'latin1%';
-COLLATION_NAME	CHARSET	ID	DEFAULT	COMPILED	SORTLEN
+COLLATION_NAME	CHARACTER_SET_NAME	ID	IS_DEFAULT	IS_COMPILED	SORTLEN
 latin1_german1_ci	latin1	5			0
 latin1_swedish_ci	latin1	8	Yes	Yes	1
 latin1_danish_ci	latin1	15			0
@@ -222,7 +222,7 @@ latin1_general_ci
 latin1_general_cs
 latin1_spanish_ci
 SHOW COLLATION *  WHERE COLLATION_NAME like 'latin1%';
-COLLATION_NAME	CHARSET	ID	DEFAULT	COMPILED	SORTLEN
+COLLATION_NAME	CHARACTER_SET_NAME	ID	IS_DEFAULT	IS_COMPILED	SORTLEN
 latin1_german1_ci	latin1	5			0
 latin1_swedish_ci	latin1	8	Yes	Yes	1
 latin1_danish_ci	latin1	15			0
@@ -467,20 +467,20 @@ drop table t1;
 SHOW CREATE TABLE INFORMATION_SCHEMA.character_sets;
 Table	Create Table
 character_sets	CREATE TEMPORARY TABLE `character_sets` (
-  `CHARACTER_SET_NAME` varchar(30) NOT NULL default '',
-  `DEFAULT_COLLATE_NAME` varchar(60) NOT NULL default '',
+  `CHARACTER_SET_NAME` varchar(64) NOT NULL default '',
+  `DEFAULT_COLLATE_NAME` varchar(64) NOT NULL default '',
   `DESCRIPTION` varchar(60) NOT NULL default '',
   `MAXLEN` bigint(3) NOT NULL default '0'
-) ENGINE=HEAP DEFAULT CHARSET=utf8 MAX_ROWS=2267
+) ENGINE=HEAP DEFAULT CHARSET=utf8 MAX_ROWS=1818
 set names latin2;
 SHOW CREATE TABLE INFORMATION_SCHEMA.character_sets;
 Table	Create Table
 character_sets	CREATE TEMPORARY TABLE `character_sets` (
-  `CHARACTER_SET_NAME` varchar(30) NOT NULL default '',
-  `DEFAULT_COLLATE_NAME` varchar(60) NOT NULL default '',
+  `CHARACTER_SET_NAME` varchar(64) NOT NULL default '',
+  `DEFAULT_COLLATE_NAME` varchar(64) NOT NULL default '',
   `DESCRIPTION` varchar(60) NOT NULL default '',
   `MAXLEN` bigint(3) NOT NULL default '0'
-) ENGINE=HEAP DEFAULT CHARSET=utf8 MAX_ROWS=2267
+) ENGINE=HEAP DEFAULT CHARSET=utf8 MAX_ROWS=1818
 set names latin1;
 create table t1 select * from information_schema.CHARACTER_SETS
 where CHARACTER_SET_NAME like "latin1";
@@ -491,8 +491,8 @@ alter table t1 default character set utf8;
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
-  `CHARACTER_SET_NAME` varchar(30) NOT NULL default '',
-  `DEFAULT_COLLATE_NAME` varchar(60) NOT NULL default '',
+  `CHARACTER_SET_NAME` varchar(64) NOT NULL default '',
+  `DEFAULT_COLLATE_NAME` varchar(64) NOT NULL default '',
   `DESCRIPTION` varchar(60) NOT NULL default '',
   `MAXLEN` bigint(3) NOT NULL default '0'
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8
@@ -641,3 +641,9 @@ drop view t3;
 drop table t4;
 select * from information_schema.table_names;
 ERROR 42S02: Unknown table 'table_names' in information_schema
+select column_type from information_schema.columns
+where table_schema="information_schema" and table_name="COLUMNS" and
+(column_name="character_set_name" or column_name="collation_name");
+column_type
+varchar(64)
+varchar(64)

mysql-test/t/information_schema.test

@@ -331,3 +331,11 @@ drop table t4;
 #
 --error 1109
 select * from information_schema.table_names;
+
+#
+# Bug#2719 information_schema: errors in "columns"
+#
+select column_type from information_schema.columns
+where table_schema="information_schema" and table_name="COLUMNS" and
+(column_name="character_set_name" or column_name="collation_name");
+

sql/sql_show.cc

@@ -3453,7 +3453,7 @@ ST_FIELD_INFO schema_fields_info[]=
 {
   {"CATALOG_NAME", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
   {"SCHEMA_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Database"},
-  {"DEFAULT_CHARACTER_SET_NAME", 60, MYSQL_TYPE_STRING, 0, 0, 0},
+  {"DEFAULT_CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
   {"SQL_PATH", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
   {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
 };
@@ -3500,8 +3500,8 @@ ST_FIELD_INFO columns_fields_info[]=
   {"CHARACTER_OCTET_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
   {"NUMERIC_PRECISION", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
   {"NUMERIC_SCALE", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
-  {"CHARACTER_SET_NAME", 40, MYSQL_TYPE_STRING, 0, 1, 0},
-  {"COLLATION_NAME", 40, MYSQL_TYPE_STRING, 0, 1, "Collation"},
+  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 1, 0},
+  {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 1, "Collation"},
   {"COLUMN_TYPE", 65535, MYSQL_TYPE_STRING, 0, 0, "Type"},
   {"COLUMN_KEY", 3, MYSQL_TYPE_STRING, 0, 0, "Key"},
   {"EXTRA", 20, MYSQL_TYPE_STRING, 0, 0, "Extra"},
@@ -3513,8 +3513,8 @@ ST_FIELD_INFO columns_fields_info[]=
 
 ST_FIELD_INFO charsets_fields_info[]=
 {
-  {"CHARACTER_SET_NAME", 30, MYSQL_TYPE_STRING, 0, 0, "Charset"},
-  {"DEFAULT_COLLATE_NAME", 60, MYSQL_TYPE_STRING, 0, 0, "Default collation"},
+  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Charset"},
+  {"DEFAULT_COLLATE_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Default collation"},
   {"DESCRIPTION", 60, MYSQL_TYPE_STRING, 0, 0, "Description"},
   {"MAXLEN", 3 ,MYSQL_TYPE_LONG, 0, 0, "Maxlen"},
   {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
@@ -3523,11 +3523,11 @@ ST_FIELD_INFO charsets_fields_info[]=
 
 ST_FIELD_INFO collation_fields_info[]=
 {
-  {"COLLATION_NAME", 30, MYSQL_TYPE_STRING, 0, 0, "Collation"},
-  {"CHARSET", 30, MYSQL_TYPE_STRING, 0, 0, "Charset"},
+  {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Collation"},
+  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Charset"},
   {"ID", 11, MYSQL_TYPE_LONG, 0, 0, "Id"},
-  {"DEFAULT", 30 ,MYSQL_TYPE_STRING, 0, 0, "Default"},
-  {"COMPILED", 30 ,MYSQL_TYPE_STRING, 0, 0, "Compiled"},
+  {"IS_DEFAULT", 3, MYSQL_TYPE_STRING, 0, 0, "Default"},
+  {"IS_COMPILED", 3, MYSQL_TYPE_STRING, 0, 0, "Compiled"},
   {"SORTLEN", 3 ,MYSQL_TYPE_LONG, 0, 0, "Sortlen"},
   {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
 };
@@ -3535,8 +3535,8 @@ ST_FIELD_INFO collation_fields_info[]=
 
 ST_FIELD_INFO coll_charset_app_fields_info[]=
 {
-  {"COLLATION_NAME", 30, MYSQL_TYPE_STRING, 0, 0, 0},
-  {"CHARACTER_SET_NAME", 30, MYSQL_TYPE_STRING, 0, 0, 0},
+  {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
+  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
   {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
 };