CreateQuery test_table (children 3)
 Identifier test_table
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration a (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Int8
   ColumnDeclaration d (children 1)
    DataType Decimal32 (children 1)
     ExpressionList (children 1)
      Literal UInt64_4
   ColumnDeclaration c (children 1)
    DataType Tuple (children 1)
     ExpressionList (children 2)
      DataType DateTime64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_3
      DataType UUID
 Storage definition (children 1)
  Function GenerateRandom (children 1)
   ExpressionList