marchpure opened a new pull request #3553: [CARBONDATA-3648] Support Alter Table Compaction Level Threshold URL: https://github.com/apache/carbondata/pull/3553 ### Why is this PR needed? (1) The Alter Table sould support Compaction Level Threshold. (2) The upper limit of Compaction Level Threshold is 100, which is too small to meet the scenario with massive small files (3) There is a bug to limit alter table in windows env. ### What changes were proposed in this PR? (1) AlterTableUtil support alter Compaction_Level_Threshold (2) CarbonProperties increases the upper limit of Compaction_Level_Threshold to 10000 from 100. (3) Fix the bug which limit alter table in windows env ### Does this PR introduce any user interface change? - No ### Is any new testcase added? - Yes
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