CreateQuery t_ttl_move_if_exists (children 3)
 Identifier t_ttl_move_if_exists
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration d (children 1)
    DataType DateTime
   ColumnDeclaration a (children 1)
    DataType UInt32
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  ExpressionList (children 1)
   TTLElement (children 1)
    Identifier d
