
Changes: - only add group_by "key" if key is provided - remove deprecated aggregators "dev" and "first" - add X-Attribution header for query attribution Signed-off-by: ☃ pitr <peter.vernigorov@zalando.de>
Changes: - only add group_by "key" if key is provided - remove deprecated aggregators "dev" and "first" - add X-Attribution header for query attribution Signed-off-by: ☃ pitr <peter.vernigorov@zalando.de>