CreateQuery partitioned_by_string (children 3)
 Identifier partitioned_by_string
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration s (children 1)
    DataType String
   ColumnDeclaration x (children 1)
    DataType UInt8
 Storage definition (children 3)
  Function MergeTree
  Identifier s
  Identifier x