CreateQuery t_index_empty_part (children 3)
 Identifier t_index_empty_part
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration c0 (children 1)
    DataType Int
   ColumnDeclaration c1 (children 1)
    DataType Int
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier c0
    Identifier c1
  Set
