Nullable(Int32) Int32 Nullable(Int32) Int32 CREATE TABLE default.data_null\n(\n `a` Nullable(Int32),\n `b` Int32,\n `c` Nullable(Int32),\n `d` Int32\n)\nENGINE = Memory Nullable(Int32) Int32 Nullable(Int32) Nullable(Int32) Nullable(UInt8) CREATE TABLE default.set_null\n(\n `a` Nullable(Int32),\n `b` Int32,\n `c` Nullable(Int32),\n `d` Nullable(Int32),\n `f` Nullable(UInt8) DEFAULT 1\n)\nENGINE = Memory CREATE TABLE default.set_null\n(\n `a` Nullable(Int32),\n `b` Int32,\n `c` Nullable(Int32),\n `d` Nullable(Int32),\n `f` Nullable(UInt8) DEFAULT 1\n)\nENGINE = Memory CREATE TABLE default.cannot_be_nullable\n(\n `n` Nullable(Int8),\n `a` Array(UInt8)\n)\nENGINE = Memory CREATE TABLE default.cannot_be_nullable\n(\n `n` Nullable(Int8),\n `a` Array(UInt8)\n)\nENGINE = Memory