[Fix](regression-test) Fix auto inc partial update unstable regression test #34940
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yiguolei
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…uto inc data inconsistency problem #34788" (#35056) * [Fix](auto inc) Fix multiple replica partial update auto inc data inconsistency problem (#34788) * **Problem:** For tables with auto-increment columns, updating partial columns can cause data inconsistency among replicas. **Cause:** Previously, the implementation for updating partial columns in tables with auto-increment columns was done independently on each BE (Backend), leading to potential inconsistencies in the auto-increment column values generated by each BE. **Solution:** Before distributing blocks, determine if the update involves partial columns of a table with an auto-increment column. If so, add the auto-increment column to the last column of the block. After distributing to each BE, each BE will check if the data key for the partial column update exists. If it exists, the previous auto-increment column value is used; if not, the auto-increment column value from the last column of the block is used. This ensures that the auto-increment column values are consistent across different BEs. * 2 * [Fix](regression-test) Fix auto inc partial update unstable regression test (#34940)
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