karuppayya opened a new pull request #25995: SPARK-29324: Fix overwrite behaviour for saveAsTable URL: https://github.com/apache/spark/pull/25995 <!-- Thanks for sending a pull request! Here are some tips for you: 1. If this is your first time, please read our contributor guidelines: https://spark.apache.org/contributing.html 2. Ensure you have added or run the appropriate tests for your PR: https://spark.apache.org/developer-tools.html 3. If the PR is unfinished, add '[WIP]' in your PR title, e.g., '[WIP][SPARK-XXXX] Your PR title ...'. 4. Be sure to keep the PR description updated to reflect all changes. 5. Please write your PR title to summarize what this PR proposes. 6. If possible, provide a concise example to reproduce the issue for a faster review. --> ### What changes were proposed in this pull request? When saveAstable is used in overwrite mode, the metadata of the table gets overwritten. In this PR, adding changes to retain the metadata after overwrite to an existing table ### Why are the changes needed? The tables metadata gets overwritten without this change ### Does this PR introduce any user-facing change? No ### How was this patch tested? Added Unit tests
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