func openSelectMapperOrFail(t *testing.T, shard *tsdb.Shard, stmt *influxql.SelectStatement) *tsdb.SelectMapper {
mapper := tsdb.NewSelectMapper(shard, stmt, 0)
if err := mapper.Open(); err != nil {
t.Fatalf("failed to open aggregate mapper: %s", err.Error())
}
return mapper
}
func openRawMapperOrFail(t *testing.T, shard *tsdb.Shard, stmt *influxql.SelectStatement, chunkSize int) tsdb.Mapper {
mapper := tsdb.NewSelectMapper(shard, stmt, chunkSize)
if err := mapper.Open(); err != nil {
t.Fatalf("failed to open raw mapper: %s", err.Error())
}
return mapper
}