[SPARK-26673][FollowUp][SQL]File Source V2: check existence of output path before delete it #23889
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Test build #102756 has finished for PR 23889 at commit
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Hi, @gengliangwang . The PR looks reasonable, but do we need #23836 for this? |
gatorsmile
reviewed
Feb 26, 2019
Otherwise, the V2 write path is not tested. I just tested it on my local ENV since the code is so simple. |
mccheah
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May 15, 2019
…t path before delete it ## What changes were proposed in this pull request? This is a followup PR to resolve comment: apache#23601 (review) When Spark writes DataFrame with "overwrite" mode, it deletes the output path before actual writes. To safely handle the case that the output path doesn't exist, it is suggested to follow the V1 code by checking the existence. ## How was this patch tested? Apply apache#23836 and run unit tests Closes apache#23889 from gengliangwang/checkFileBeforeOverwrite. Authored-by: Gengliang Wang <gengliang.wang@databricks.com> Signed-off-by: gatorsmile <gatorsmile@gmail.com>
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What changes were proposed in this pull request?
This is a followup PR to resolve comment: #23601 (review)
When Spark writes DataFrame with "overwrite" mode, it deletes the output path before actual writes. To safely handle the case that the output path doesn't exist, it is suggested to follow the V1 code by checking the existence.
How was this patch tested?
Apply #23836 and run unit tests