Fix expected results

docs/en/operations/system-tables/information_schema.md

@@ -293,7 +293,7 @@ is_trigger_deletable:       NO
 is_trigger_insertable_into: NO
 ```
 
-## KEY_COLUMN_USAGE (#key_column_usage)
+## KEY_COLUMN_USAGE {#key_column_usage}
 
 Contains columns from the [system.tables](../../operations/system-tables/tables.md) system table which are restricted by constraints.
 
@@ -352,7 +352,7 @@ referenced_table_name:         ᴺᵁᴸᴸ
 referenced_column_name:        ᴺᵁᴸᴸ
 ```
 
-## REFERENTIAL_CONSTRAINTS (#referential_constraints)
+## REFERENTIAL_CONSTRAINTS {#referential_constraints}
 
 Contains information about foreign keys. Currently returns an empty result (no rows) which is just enough to provide compatibility with 3rd party tools like Tableau Online.
 

tests/queries/0_stateless/01161_information_schema.reference

@@ -22,34 +22,36 @@ referential_constraints
 schemata
 tables
 views
+-- information_schema.schemata
 INFORMATION_SCHEMA	INFORMATION_SCHEMA	default	\N	\N	\N	\N	INFORMATION_SCHEMA	INFORMATION_SCHEMA	default	\N	\N	\N	\N
 information_schema	information_schema	default	\N	\N	\N	\N	information_schema	information_schema	default	\N	\N	\N	\N
-default	default	kcu	BASE TABLE	utf8mb4_0900_ai_ci		default	default	kcu	BASE TABLE	utf8mb4_0900_ai_ci	
+-- information_schema.tables
-default	default	kcu2	BASE TABLE	utf8mb4_0900_ai_ci		default	default	kcu2	BASE TABLE	utf8mb4_0900_ai_ci	
+default	default	kcu1	BASE TABLE	0	utf8mb4_0900_ai_ci		default	default	kcu1	BASE TABLE	0	utf8mb4_0900_ai_ci	
-default	default	mv	VIEW	utf8mb4_0900_ai_ci		default	default	mv	VIEW	utf8mb4_0900_ai_ci	
+default	default	kcu2	BASE TABLE	0	utf8mb4_0900_ai_ci		default	default	kcu2	BASE TABLE	0	utf8mb4_0900_ai_ci	
-default	default	t	FOREIGN TABLE	utf8mb4_0900_ai_ci		default	default	t	FOREIGN TABLE	utf8mb4_0900_ai_ci	
+default	default	mv	VIEW	0	utf8mb4_0900_ai_ci		default	default	mv	VIEW	0	utf8mb4_0900_ai_ci	
-default	default	v	VIEW	utf8mb4_0900_ai_ci		default	default	v	VIEW	utf8mb4_0900_ai_ci	
+default	default	t	FOREIGN TABLE	0	utf8mb4_0900_ai_ci		default	default	t	FOREIGN TABLE	0	utf8mb4_0900_ai_ci	
-		tmp	LOCAL TEMPORARY	utf8mb4_0900_ai_ci				tmp	LOCAL TEMPORARY	utf8mb4_0900_ai_ci	
+default	default	v	VIEW	\N	utf8mb4_0900_ai_ci		default	default	v	VIEW	\N	utf8mb4_0900_ai_ci	
+-- information_schema.views
 default	default	mv	SELECT * FROM system.one	NONE	NO	YES	NO	NO	NO	default	default	mv	SELECT * FROM system.one	NONE	NO	YES	NO	NO	NO
 default	default	v	SELECT n, f FROM default.t	NONE	NO	NO	NO	NO	NO	default	default	v	SELECT n, f FROM default.t	NONE	NO	NO	NO	NO	NO
-default	default	kcu	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32	default	default	kcu	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32
+-- information_schema.columns
-default	default	kcu	s	2		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String	default	default	kcu	s	2		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String
+default	default	kcu1	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32	default	default	kcu1	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32
-default	default	kcu2	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32	default	default	kcu2	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32
+default	default	kcu1	s	2		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String	default	default	kcu1	s	2		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String
 default	default	kcu2	d	2		0	Date	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		Date	default	default	kcu2	d	2		0	Date	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		Date
+default	default	kcu2	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32	default	default	kcu2	i	1		0	UInt32	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt32
 default	default	kcu2	u	3		0	UUID	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UUID	default	default	kcu2	u	3		0	UUID	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UUID
 default	default	mv	dummy	1		0	UInt8	\N	\N	8	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt8	default	default	mv	dummy	1		0	UInt8	\N	\N	8	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt8
-default	default	t	n	1		0	UInt64	\N	\N	64	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt64	default	default	t	n	1		0	UInt64	\N	\N	64	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt64
-default	default	t	f	2		0	Float32	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Float32	default	default	t	f	2		0	Float32	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Float32
-default	default	t	s	3		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String	default	default	t	s	3		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String
-default	default	t	fs	4		0	FixedString(42)	42	42	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		FixedString(42)	default	default	t	fs	4		0	FixedString(42)	42	42	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		FixedString(42)
 default	default	t	d	5		0	Decimal(9, 6)	\N	\N	9	10	6	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Decimal(9, 6)	default	default	t	d	5		0	Decimal(9, 6)	\N	\N	9	10	6	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Decimal(9, 6)
-default	default	v	n	1		1	Nullable(Int32)	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Nullable(Int32)	default	default	v	n	1		1	Nullable(Int32)	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Nullable(Int32)
+default	default	t	f	2		0	Float32	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Float32	default	default	t	f	2		0	Float32	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Float32
+default	default	t	fs	4		0	FixedString(42)	42	42	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		FixedString(42)	default	default	t	fs	4		0	FixedString(42)	42	42	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		FixedString(42)
+default	default	t	n	1		0	UInt64	\N	\N	64	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt64	default	default	t	n	1		0	UInt64	\N	\N	64	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		UInt64
+default	default	t	s	3		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String	default	default	t	s	3		0	String	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		String
 default	default	v	f	2		0	Float64	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Float64	default	default	v	f	2		0	Float64	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Float64
-		tmp	d	1		0	Date	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		Date			tmp	d	1		0	Date	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		Date
+default	default	v	n	1		1	Nullable(Int32)	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Nullable(Int32)	default	default	v	n	1		1	Nullable(Int32)	\N	\N	32	2	0	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N		Nullable(Int32)
-		tmp	dt	2		0	DateTime	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		DateTime			tmp	dt	2		0	DateTime	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		DateTime
+-- information_schema.key_column_usage
-		tmp	dtms	3		0	DateTime64(3)	\N	\N	\N	\N	\N	3	\N	\N	\N	\N	\N	\N	\N	\N	\N		DateTime64(3)			tmp	dtms	3		0	DateTime64(3)	\N	\N	\N	\N	\N	3	\N	\N	\N	\N	\N	\N	\N	\N	\N		DateTime64(3)
+def	default	PRIMARY	def	default	kcu1	i	1	\N	\N	\N	\N	def	default	PRIMARY	def	default	kcu1	i	1	\N	\N	\N	\N
-1
-1
-def	default	PRIMARY	def	default	kcu	i	1	\N	\N	\N	\N	def	default	PRIMARY	def	default	kcu	i	1	\N	\N	\N	\N
 def	default	PRIMARY	def	default	kcu2	d	1	\N	\N	\N	\N	def	default	PRIMARY	def	default	kcu2	d	1	\N	\N	\N	\N
 def	default	PRIMARY	def	default	kcu2	u	1	\N	\N	\N	\N	def	default	PRIMARY	def	default	kcu2	u	1	\N	\N	\N	\N
+-- information_schema.referential_constraints
+1
+1

tests/queries/0_stateless/01161_information_schema.sql

@@ -1,41 +1,52 @@
+-- Uppercase/lowercase are okay, mixed case isn't
 SHOW TABLES FROM information_schema;
 SHOW TABLES FROM INFORMATION_SCHEMA;
+SHOW TABLES FROM INFORMATION_schema; -- { serverError UNKNOWN_DATABASE }
 
-DROP TABLE IF EXISTS t;
 DROP VIEW IF EXISTS v;
+DROP TABLE IF EXISTS t;
 DROP VIEW IF EXISTS mv;
 DROP TABLE IF EXISTS tmp;
-DROP TABLE IF EXISTS kcu;
+DROP TABLE IF EXISTS kcu1;
 DROP TABLE IF EXISTS kcu2;
 
 CREATE TABLE t (n UInt64, f Float32, s String, fs FixedString(42), d Decimal(9, 6)) ENGINE = Memory;
 CREATE VIEW v (n Nullable(Int32), f Float64) AS SELECT n, f FROM t;
 CREATE MATERIALIZED VIEW mv ENGINE = Null AS SELECT * FROM system.one;
 CREATE TEMPORARY TABLE tmp (d Date, dt DateTime, dtms DateTime64(3));
-CREATE TABLE kcu (i UInt32, s String) ENGINE MergeTree ORDER BY i;
+CREATE TABLE kcu1 (i UInt32, s String) ENGINE MergeTree ORDER BY i;
 CREATE TABLE kcu2 (i UInt32, d Date, u UUID) ENGINE MergeTree ORDER BY (u, d);
 
--- FIXME #28687
-SELECT * FROM information_schema.schemata WHERE schema_name ilike 'information_schema';
--- SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE (TABLE_SCHEMA=currentDatabase() OR TABLE_SCHEMA='') AND TABLE_NAME NOT LIKE '%inner%';
-SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE (table_schema = currentDatabase() OR table_schema = '') AND table_name NOT LIKE '%inner%';
-SELECT * FROM information_schema.views WHERE table_schema = currentDatabase();
--- SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE (TABLE_SCHEMA=currentDatabase() OR TABLE_SCHEMA='') AND TABLE_NAME NOT LIKE '%inner%'
-SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE (table_schema = currentDatabase() OR table_schema = '') AND table_name NOT LIKE '%inner%';
 
+SELECT '-- information_schema.schemata';
+SELECT * FROM information_schema.schemata WHERE schema_name ilike 'information_schema' ORDER BY schema_name;
+
+SELECT '-- information_schema.tables';
+SELECT * FROM information_schema.tables WHERE table_schema = currentDatabase() AND table_name NOT LIKE '%inner%' ORDER BY table_name;
+-- SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA=currentDatabase() ORDER BY schema_name;
+-- FIXME #28687
+
+SELECT '-- information_schema.views';
+SELECT * FROM information_schema.views WHERE table_schema = currentDatabase() ORDER BY table_name;
+-- SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE (TABLE_SCHEMA=currentDatabase() OR TABLE_SCHEMA='') AND TABLE_NAME NOT LIKE '%inner%'
+
+SELECT '-- information_schema.columns';
+SELECT * FROM information_schema.columns WHERE table_schema = currentDatabase() AND table_name NOT LIKE '%inner%' ORDER BY table_name, column_name;
+
+SELECT '-- information_schema.key_column_usage';
+SELECT * FROM information_schema.key_column_usage WHERE table_schema = currentDatabase() AND table_name = 'kcu1' ORDER BY table_schema, column_name;
+SELECT * FROM information_schema.key_column_usage WHERE table_schema = currentDatabase() AND table_name = 'kcu2' ORDER BY table_schema, column_name;
+
+SELECT '-- information_schema.referential_constraints';
+SELECT * FROM information_schema.referential_constraints;
+--
 -- mixed upper/lowercase schema and table name:
 SELECT count() FROM information_schema.TABLES WHERE table_schema = currentDatabase() AND table_name = 't';
 SELECT count() FROM INFORMATION_SCHEMA.tables WHERE table_schema = currentDatabase() AND table_name = 't';
-SELECT count() FROM INFORMATION_schema.tables WHERE table_schema = currentDatabase() AND table_name = 't'; -- { serverError UNKNOWN_DATABASE }
 SELECT count() FROM information_schema.taBLES WHERE table_schema  =currentDatabase() AND table_name = 't'; -- { serverError UNKNOWN_TABLE }
 
-SELECT * FROM information_schema.key_column_usage WHERE table_schema = currentDatabase() AND table_name = 'kcu';
+DROP VIEW mv;
-SELECT * FROM information_schema.key_column_usage WHERE table_schema = currentDatabase() AND table_name = 'kcu2';
+DROP VIEW v;
-
+DROP TABLE t;
-SELECT * FROM information_schema.referential_constraints;
+DROP TABLE kcu1;
-
+DROP TABLE kcu2;
-drop view mv;
-drop view v;
-drop table t;
-drop table kcu;
-drop table kcu2;

tests/queries/0_stateless/02206_information_schema_show_database.reference

@@ -1,6 +1,6 @@
 CREATE DATABASE INFORMATION_SCHEMA\nENGINE = Memory
 CREATE VIEW INFORMATION_SCHEMA.COLUMNS\n(\n    `table_catalog` String,\n    `table_schema` String,\n    `table_name` String,\n    `column_name` String,\n    `ordinal_position` UInt64,\n    `column_default` String,\n    `is_nullable` String,\n    `data_type` String,\n    `character_maximum_length` Nullable(UInt64),\n    `character_octet_length` Nullable(UInt64),\n    `numeric_precision` Nullable(UInt64),\n    `numeric_precision_radix` Nullable(UInt64),\n    `numeric_scale` Nullable(UInt64),\n    `datetime_precision` Nullable(UInt64),\n    `character_set_catalog` Nullable(String),\n    `character_set_schema` Nullable(String),\n    `character_set_name` Nullable(String),\n    `collation_catalog` Nullable(String),\n    `collation_schema` Nullable(String),\n    `collation_name` Nullable(String),\n    `domain_catalog` Nullable(String),\n    `domain_schema` Nullable(String),\n    `domain_name` Nullable(String),\n    `column_comment` String,\n    `column_type` String,\n    `TABLE_CATALOG` String,\n    `TABLE_SCHEMA` String,\n    `TABLE_NAME` String,\n    `COLUMN_NAME` String,\n    `ORDINAL_POSITION` UInt64,\n    `COLUMN_DEFAULT` String,\n    `IS_NULLABLE` String,\n    `DATA_TYPE` String,\n    `CHARACTER_MAXIMUM_LENGTH` Nullable(UInt64),\n    `CHARACTER_OCTET_LENGTH` Nullable(UInt64),\n    `NUMERIC_PRECISION` Nullable(UInt64),\n    `NUMERIC_PRECISION_RADIX` Nullable(UInt64),\n    `NUMERIC_SCALE` Nullable(UInt64),\n    `DATETIME_PRECISION` Nullable(UInt64),\n    `CHARACTER_SET_CATALOG` Nullable(String),\n    `CHARACTER_SET_SCHEMA` Nullable(String),\n    `CHARACTER_SET_NAME` Nullable(String),\n    `COLLATION_CATALOG` Nullable(String),\n    `COLLATION_SCHEMA` Nullable(String),\n    `COLLATION_NAME` Nullable(String),\n    `DOMAIN_CATALOG` Nullable(String),\n    `DOMAIN_SCHEMA` Nullable(String),\n    `DOMAIN_NAME` Nullable(String),\n    `COLUMN_COMMENT` String,\n    `COLUMN_TYPE` String\n) AS\nSELECT\n    database AS table_catalog,\n    database AS table_schema,\n    table AS table_name,\n    name AS column_name,\n    position AS ordinal_position,\n    default_expression AS column_default,\n    type LIKE \'Nullable(%)\' AS is_nullable,\n    type AS data_type,\n    character_octet_length AS character_maximum_length,\n    character_octet_length,\n    numeric_precision,\n    numeric_precision_radix,\n    numeric_scale,\n    datetime_precision,\n    NULL AS character_set_catalog,\n    NULL AS character_set_schema,\n    NULL AS character_set_name,\n    NULL AS collation_catalog,\n    NULL AS collation_schema,\n    NULL AS collation_name,\n    NULL AS domain_catalog,\n    NULL AS domain_schema,\n    NULL AS domain_name,\n    comment AS column_comment,\n    type AS column_type,\n    table_catalog AS TABLE_CATALOG,\n    table_schema AS TABLE_SCHEMA,\n    table_name AS TABLE_NAME,\n    column_name AS COLUMN_NAME,\n    ordinal_position AS ORDINAL_POSITION,\n    column_default AS COLUMN_DEFAULT,\n    is_nullable AS IS_NULLABLE,\n    data_type AS DATA_TYPE,\n    character_maximum_length AS CHARACTER_MAXIMUM_LENGTH,\n    character_octet_length AS CHARACTER_OCTET_LENGTH,\n    numeric_precision AS NUMERIC_PRECISION,\n    numeric_precision_radix AS NUMERIC_PRECISION_RADIX,\n    numeric_scale AS NUMERIC_SCALE,\n    datetime_precision AS DATETIME_PRECISION,\n    character_set_catalog AS CHARACTER_SET_CATALOG,\n    character_set_schema AS CHARACTER_SET_SCHEMA,\n    character_set_name AS CHARACTER_SET_NAME,\n    collation_catalog AS COLLATION_CATALOG,\n    collation_schema AS COLLATION_SCHEMA,\n    collation_name AS COLLATION_NAME,\n    domain_catalog AS DOMAIN_CATALOG,\n    domain_schema AS DOMAIN_SCHEMA,\n    domain_name AS DOMAIN_NAME,\n    column_comment AS COLUMN_COMMENT,\n    column_type AS COLUMN_TYPE\nFROM system.columns
-CREATE VIEW INFORMATION_SCHEMA.TABLES (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
+CREATE VIEW INFORMATION_SCHEMA.TABLES (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `data_length` Nullable(UInt64), `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `DATA_LENGTH` Nullable(UInt64), `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, total_bytes AS data_length, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, data_length AS DATA_LENGTH, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
-CREATE VIEW INFORMATION_SCHEMA.tables (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
+CREATE VIEW INFORMATION_SCHEMA.tables (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `data_length` Nullable(UInt64), `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `DATA_LENGTH` Nullable(UInt64), `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, total_bytes AS data_length, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, data_length AS DATA_LENGTH, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
-CREATE VIEW information_schema.TABLES (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
+CREATE VIEW information_schema.TABLES (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `data_length` Nullable(UInt64), `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `DATA_LENGTH` Nullable(UInt64), `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, total_bytes AS data_length, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, data_length AS DATA_LENGTH, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
-CREATE VIEW information_schema.tables (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables
+CREATE VIEW information_schema.tables (`table_catalog` String, `table_schema` String, `table_name` String, `table_type` String, `data_length` Nullable(UInt64), `table_collation` Nullable(String), `table_comment` Nullable(String), `TABLE_CATALOG` String, `TABLE_SCHEMA` String, `TABLE_NAME` String, `TABLE_TYPE` String, `DATA_LENGTH` Nullable(UInt64), `TABLE_COLLATION` Nullable(String), `TABLE_COMMENT` Nullable(String)) AS SELECT database AS table_catalog, database AS table_schema, name AS table_name, multiIf(is_temporary, \'LOCAL TEMPORARY\', engine LIKE \'%View\', \'VIEW\', engine LIKE \'System%\', \'SYSTEM VIEW\', has_own_data = 0, \'FOREIGN TABLE\', \'BASE TABLE\') AS table_type, total_bytes AS data_length, \'utf8mb4_0900_ai_ci\' AS table_collation, comment AS table_comment, table_catalog AS TABLE_CATALOG, table_schema AS TABLE_SCHEMA, table_name AS TABLE_NAME, table_type AS TABLE_TYPE, data_length AS DATA_LENGTH, table_collation AS TABLE_COLLATION, table_comment AS TABLE_COMMENT FROM system.tables