CreateQuery test1 (children 3)
 Identifier test1
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration col1 (children 1)
    DataType UInt64
   ColumnDeclaration col2 (children 1)
    DataType Int8
 Storage definition (children 2)
  Function MergeTree
  Identifier col1