COLUMNS KEY_COLUMN_USAGE REFERENTIAL_CONSTRAINTS SCHEMATA STATISTICS TABLES VIEWS columns key_column_usage referential_constraints schemata statistics tables views COLUMNS KEY_COLUMN_USAGE REFERENTIAL_CONSTRAINTS SCHEMATA STATISTICS TABLES VIEWS columns key_column_usage referential_constraints schemata statistics 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 -- information_schema.tables default default kcu1 BASE TABLE 0 0 utf8mb4_0900_ai_ci default default kcu1 BASE TABLE 0 0 utf8mb4_0900_ai_ci default default kcu2 BASE TABLE 0 0 utf8mb4_0900_ai_ci default default kcu2 BASE TABLE 0 0 utf8mb4_0900_ai_ci default default mv VIEW 0 0 utf8mb4_0900_ai_ci default default mv VIEW 0 0 utf8mb4_0900_ai_ci default default t FOREIGN TABLE 0 0 utf8mb4_0900_ai_ci default default t FOREIGN TABLE 0 0 utf8mb4_0900_ai_ci default default v VIEW \N \N utf8mb4_0900_ai_ci default default v VIEW \N \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 -- information_schema.columns 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 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 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 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 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) -- information_schema.key_column_usage def default PRIMARY def default kcu1 i 1 \N \N \N \N def default PRIMARY def default kcu1 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 -- information_schema.statistics 1 1