# [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=h1) Report > Merging > [#2551](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=desc) > into > [master](https://codecov.io/gh/apache/incubator-airflow/commit/304c2afd20c0ea3139054a38f9eb38d5fa7d930e?src=pr&el=desc) > will **decrease** coverage by `6.64%`. > The diff coverage is `66.66%`.
[](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=tree) ```diff @@ Coverage Diff @@ ## master #2551 +/- ## ========================================== - Coverage 77.49% 70.85% -6.65% ========================================== Files 200 150 -50 Lines 15893 11585 -4308 ========================================== - Hits 12317 8209 -4108 + Misses 3576 3376 -200 ``` | [Impacted Files](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=tree) | Coverage Δ | | |---|---|---| | [airflow/models.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9tb2RlbHMucHk=) | `87.17% <66.66%> (-1.64%)` | :arrow_down: | | [airflow/operators/email\_operator.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9vcGVyYXRvcnMvZW1haWxfb3BlcmF0b3IucHk=) | `0% <0%> (-100%)` | :arrow_down: | | [airflow/hooks/pig\_hook.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9ob29rcy9waWdfaG9vay5weQ==) | `0% <0%> (-100%)` | :arrow_down: | | [airflow/operators/redshift\_to\_s3\_operator.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9vcGVyYXRvcnMvcmVkc2hpZnRfdG9fczNfb3BlcmF0b3IucHk=) | `0% <0%> (-95.56%)` | :arrow_down: | | [airflow/hooks/jdbc\_hook.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9ob29rcy9qZGJjX2hvb2sucHk=) | `0% <0%> (-94.45%)` | :arrow_down: | | [airflow/operators/s3\_file\_transform\_operator.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9vcGVyYXRvcnMvczNfZmlsZV90cmFuc2Zvcm1fb3BlcmF0b3IucHk=) | `0% <0%> (-93.88%)` | :arrow_down: | | [airflow/executors/celery\_executor.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9leGVjdXRvcnMvY2VsZXJ5X2V4ZWN1dG9yLnB5) | `0% <0%> (-80.62%)` | :arrow_down: | | [airflow/hooks/S3\_hook.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9ob29rcy9TM19ob29rLnB5) | `22.27% <0%> (-72.05%)` | :arrow_down: | | [airflow/hooks/mssql\_hook.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy9ob29rcy9tc3NxbF9ob29rLnB5) | `6.66% <0%> (-66.67%)` | :arrow_down: | | [airflow/utils/log/s3\_task\_handler.py](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree#diff-YWlyZmxvdy91dGlscy9sb2cvczNfdGFza19oYW5kbGVyLnB5) | `37.5% <0%> (-61.08%)` | :arrow_down: | | ... and [199 more](https://codecov.io/gh/apache/incubator-airflow/pull/2551/diff?src=pr&el=tree-more) | | ------ [Continue to review full report at Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=continue). > **Legend** - [Click here to learn > more](https://docs.codecov.io/docs/codecov-delta) > `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data` > Powered by > [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=footer). > Last update > [304c2af...1126a50](https://codecov.io/gh/apache/incubator-airflow/pull/2551?src=pr&el=lastupdated). > Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments). [ Full content available at: https://github.com/apache/incubator-airflow/pull/2551 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org
