GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/22481
Revert [SPARK-19355][SPARK-25352]
## What changes were proposed in this pull request?
This goes to revert sequential PRs based on some discussion and comments at
https://github.com/apache/spark/pull/16677#issuecomment-422650759.
#22344
#22330
#22239
#16677
## How was this patch tested?
Existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 revert-SPARK-19355-1
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22481.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #22481
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commit 7b81a95e9496ba953648880a70896085e2bfd043
Author: Liang-Chi Hsieh <viirya@...>
Date: 2018-09-20T03:14:50Z
Revert "[SPARK-25352][SQL] Perform ordered global limit when limit number
is bigger than topKSortFallbackThreshold"
This reverts commit 2f422398b524eacc89ab58e423bb134ae3ca3941.
commit cea66899194f19812ac217cde2d8b6fe1fbe1328
Author: Liang-Chi Hsieh <viirya@...>
Date: 2018-09-20T03:57:38Z
Revert "[SPARK-19355][SQL][FOLLOWUP][TEST] Properly recycle SparkSession on
TakeOrderedAndProjectSuite finishes"
This reverts commit 3aa60282cc84d471ea32ef240ec84e5b6e3e231b.
commit 2dae33e5b897c0ec05f675ec565abee5f2c4ea34
Author: Liang-Chi Hsieh <viirya@...>
Date: 2018-09-20T03:58:11Z
Revert "[SPARK-19355][SQL][FOLLOWUP] Remove the child.outputOrdering check
in global limit"
This reverts commit 5c27b0d4f8d378bd7889d26fb358f478479b9996.
commit 4532aaa2471c04c57f3b59bdcec26ad83627df68
Author: Liang-Chi Hsieh <viirya@...>
Date: 2018-09-20T04:00:46Z
Revert "[SPARK-19355][SQL] Use map output statistics to improve global
limit's parallelism"
This reverts commit 4f175850985cfc4c64afb90d784bb292e81dc0b7.
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