CreateQuery t1 (children 3)
 Identifier t1
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration c0 (children 1)
    DataType Decimal (children 1)
     ExpressionList (children 2)
      Literal UInt64_18
      Literal UInt64_0
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier c0
  Set
