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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2021/03/05 02:22:31 UTC
[GitHub] [incubator-pinot] Jackie-Jiang opened a new pull request #6649: Skip loading columns not in the schema
Jackie-Jiang opened a new pull request #6649:
URL: https://github.com/apache/incubator-pinot/pull/6649
## Description
Currently, when a column is added to the schema, server will generate default columns if the segment does not have the new column. But when a column is removed from the schema, the server still load all the columns within the segments. This could cause problem for `select *` queries because different segments might contain different columns.
With the change, server will skip loading the columns not in the schema, and all the segments should have the same set of columns loaded.
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[GitHub] [incubator-pinot] codecov-io commented on pull request #6649: Skip loading columns not in the schema
Posted by GitBox <gi...@apache.org>.
codecov-io commented on pull request #6649:
URL: https://github.com/apache/incubator-pinot/pull/6649#issuecomment-791119791
# [Codecov](https://codecov.io/gh/apache/incubator-pinot/pull/6649?src=pr&el=h1) Report
> Merging [#6649](https://codecov.io/gh/apache/incubator-pinot/pull/6649?src=pr&el=desc) (92fbf09) into [master](https://codecov.io/gh/apache/incubator-pinot/commit/1beaab59b73f26c4e35f3b9bc856b03806cddf5a?el=desc) (1beaab5) will **decrease** coverage by `22.35%`.
> The diff coverage is `42.93%`.
[](https://codecov.io/gh/apache/incubator-pinot/pull/6649?src=pr&el=tree)
```diff
@@ Coverage Diff @@
## master #6649 +/- ##
===========================================
- Coverage 66.44% 44.09% -22.36%
===========================================
Files 1075 1360 +285
Lines 54773 66545 +11772
Branches 8168 9701 +1533
===========================================
- Hits 36396 29345 -7051
- Misses 15700 34741 +19041
+ Partials 2677 2459 -218
```
| Flag | Coverage Δ | |
|---|---|---|
| integration | `44.09% <42.93%> (?)` | |
Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags#carryforward-flags-in-the-pull-request-comment) to find out more.
| [Impacted Files](https://codecov.io/gh/apache/incubator-pinot/pull/6649?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [...ot/broker/broker/AllowAllAccessControlFactory.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvYnJva2VyL0FsbG93QWxsQWNjZXNzQ29udHJvbEZhY3RvcnkuamF2YQ==) | `100.00% <ø> (ø)` | |
| [...t/broker/broker/BasicAuthAccessControlFactory.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvYnJva2VyL0Jhc2ljQXV0aEFjY2Vzc0NvbnRyb2xGYWN0b3J5LmphdmE=) | `0.00% <0.00%> (ø)` | |
| [.../helix/BrokerUserDefinedMessageHandlerFactory.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvYnJva2VyL2hlbGl4L0Jyb2tlclVzZXJEZWZpbmVkTWVzc2FnZUhhbmRsZXJGYWN0b3J5LmphdmE=) | `52.83% <0.00%> (-13.84%)` | :arrow_down: |
| [...org/apache/pinot/broker/queryquota/HitCounter.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcXVlcnlxdW90YS9IaXRDb3VudGVyLmphdmE=) | `0.00% <0.00%> (-100.00%)` | :arrow_down: |
| [...che/pinot/broker/queryquota/MaxHitRateTracker.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcXVlcnlxdW90YS9NYXhIaXRSYXRlVHJhY2tlci5qYXZh) | `0.00% <0.00%> (ø)` | |
| [...ache/pinot/broker/queryquota/QueryQuotaEntity.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcXVlcnlxdW90YS9RdWVyeVF1b3RhRW50aXR5LmphdmE=) | `0.00% <0.00%> (-50.00%)` | :arrow_down: |
| [...ker/routing/instanceselector/InstanceSelector.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcm91dGluZy9pbnN0YW5jZXNlbGVjdG9yL0luc3RhbmNlU2VsZWN0b3IuamF2YQ==) | `100.00% <ø> (ø)` | |
| [...ceselector/StrictReplicaGroupInstanceSelector.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcm91dGluZy9pbnN0YW5jZXNlbGVjdG9yL1N0cmljdFJlcGxpY2FHcm91cEluc3RhbmNlU2VsZWN0b3IuamF2YQ==) | `0.00% <0.00%> (ø)` | |
| [...roker/routing/segmentpruner/TimeSegmentPruner.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcm91dGluZy9zZWdtZW50cHJ1bmVyL1RpbWVTZWdtZW50UHJ1bmVyLmphdmE=) | `0.00% <0.00%> (ø)` | |
| [...roker/routing/segmentpruner/interval/Interval.java](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree#diff-cGlub3QtYnJva2VyL3NyYy9tYWluL2phdmEvb3JnL2FwYWNoZS9waW5vdC9icm9rZXIvcm91dGluZy9zZWdtZW50cHJ1bmVyL2ludGVydmFsL0ludGVydmFsLmphdmE=) | `0.00% <0.00%> (ø)` | |
| ... and [1386 more](https://codecov.io/gh/apache/incubator-pinot/pull/6649/diff?src=pr&el=tree-more) | |
------
[Continue to review full report at Codecov](https://codecov.io/gh/apache/incubator-pinot/pull/6649?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-pinot/pull/6649?src=pr&el=footer). Last update [b2d716d...92fbf09](https://codecov.io/gh/apache/incubator-pinot/pull/6649?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
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[GitHub] [incubator-pinot] Jackie-Jiang commented on pull request #6649: Skip loading columns not in the schema
Posted by GitBox <gi...@apache.org>.
Jackie-Jiang commented on pull request #6649:
URL: https://github.com/apache/incubator-pinot/pull/6649#issuecomment-791893908
@snleee Not fully supported, but can reduce the inconsistency. Dropping columns won't take effect on consuming segments.
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[GitHub] [incubator-pinot] snleee commented on pull request #6649: Skip loading columns not in the schema
Posted by GitBox <gi...@apache.org>.
snleee commented on pull request #6649:
URL: https://github.com/apache/incubator-pinot/pull/6649#issuecomment-791834095
Does this imply that we now support dropping columns?
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[GitHub] [incubator-pinot] Jackie-Jiang merged pull request #6649: Skip loading columns not in the schema
Posted by GitBox <gi...@apache.org>.
Jackie-Jiang merged pull request #6649:
URL: https://github.com/apache/incubator-pinot/pull/6649
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