CreateQuery lc_nullable (children 3)
 Identifier lc_nullable
 Columns definition (children 1)
  ExpressionList (children 15)
   ColumnDeclaration order_key (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType UInt64
   ColumnDeclaration i8 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Int8
   ColumnDeclaration i16 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Int16
   ColumnDeclaration i32 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Int32
   ColumnDeclaration i64 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Int64
   ColumnDeclaration u8 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType UInt8
   ColumnDeclaration u16 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType UInt16
   ColumnDeclaration u32 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType UInt32
   ColumnDeclaration u64 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType UInt64
   ColumnDeclaration f32 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Float32
   ColumnDeclaration f64 (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Float64
   ColumnDeclaration date (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType Date
   ColumnDeclaration date_time (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType DateTime (children 1)
           ExpressionList (children 1)
            Literal \'Asia/Istanbul\'
   ColumnDeclaration str (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType String
   ColumnDeclaration fixed_string (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType FixedString (children 1)
           ExpressionList (children 1)
            Literal UInt64_5
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier order_key
  Set