# [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/3991?src=pr&el=h1) Report > Merging > [#3991](https://codecov.io/gh/apache/incubator-airflow/pull/3991?src=pr&el=desc) > into > [master](https://codecov.io/gh/apache/incubator-airflow/commit/7103c2aba01a7e891715102636c8ae31f4741172?src=pr&el=desc) > will **increase** coverage by `<.01%`. > The diff coverage is `0%`.
[](https://codecov.io/gh/apache/incubator-airflow/pull/3991?src=pr&el=tree) ```diff @@ Coverage Diff @@ ## master #3991 +/- ## ========================================== + Coverage 15.22% 15.22% +<.01% ========================================== Files 199 199 Lines 15947 15945 -2 ========================================== Hits 2428 2428 + Misses 13519 13517 -2 ``` | [Impacted Files](https://codecov.io/gh/apache/incubator-airflow/pull/3991?src=pr&el=tree) | Coverage Δ | | |---|---|---| | [airflow/sensors/sql\_sensor.py](https://codecov.io/gh/apache/incubator-airflow/pull/3991/diff?src=pr&el=tree#diff-YWlyZmxvdy9zZW5zb3JzL3NxbF9zZW5zb3IucHk=) | `0% <0%> (ø)` | :arrow_up: | | [airflow/sensors/s3\_key\_sensor.py](https://codecov.io/gh/apache/incubator-airflow/pull/3991/diff?src=pr&el=tree#diff-YWlyZmxvdy9zZW5zb3JzL3MzX2tleV9zZW5zb3IucHk=) | `0% <0%> (ø)` | :arrow_up: | ------ [Continue to review full report at Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/3991?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/3991?src=pr&el=footer). > Last update > [7103c2a...9b73fa1](https://codecov.io/gh/apache/incubator-airflow/pull/3991?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/3991 ] This message was relayed via gitbox.apache.org for [email protected]
