CreateQuery test_gcd2 (children 3)
 Identifier test_gcd2
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration test_col (children 2)
    DataType UInt32
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function GCD
      Function LZ4
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set
