CreateQuery table_key (children 4)
 Identifier table_key
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration keycol (children 1)
    DataType UInt16
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
  Identifier keycol
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 1)
     Asterisk
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function VALUES (children 1)
        ExpressionList (children 3)
         Literal UInt64_1
         Literal UInt64_2
         Literal UInt64_3