CreateQuery test_join (children 3)
 Identifier test_join
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration date (children 1)
    DataType Date
   ColumnDeclaration id (children 1)
    DataType Int32
   ColumnDeclaration name (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 3)
  Function MergeTree
  Identifier date
  Identifier id
