[SPARK-10216][SQL] Avoid creating empty files during overwriting with group by query - #12855
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HyukjinKwon wants to merge 15 commits into
Closed
[SPARK-10216][SQL] Avoid creating empty files during overwriting with group by query#12855HyukjinKwon wants to merge 15 commits into
HyukjinKwon wants to merge 15 commits into