CreateQuery mergetree_00588 (children 3)
 Identifier mergetree_00588
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType UInt64
   ColumnDeclaration s (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier x