CreateQuery grouptest (children 3)
 Identifier grouptest
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration user_id (children 1)
    DataType UInt32
   ColumnDeclaration p1 (children 1)
    DataType Float64
   ColumnDeclaration p2 (children 1)
    DataType Float64
   ColumnDeclaration target (children 1)
    DataType Float64
 Storage definition (children 1)
  Function Memory