CreateQuery data (children 3)
 Identifier data
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration s (children 1)
    DataType String
   ColumnDeclaration x (children 1)
    DataType Int8
   ColumnDeclaration y (children 1)
    DataType Int8
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
