sink(ticdc): split RowChangeEvent if unique key is updated (#9437) #9559
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Signed-off-by: ti-chi-bot <[email protected]>
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Aug 17, 2023
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This is an automated cherry-pick of #9437
What problem does this PR solve?
Issue Number: close #9430
What is changed and how it works?
split and sort RowChangeEvent if unique key is updated
split the update to delete and insert, then sort the whole txn with the order delete>update>insert
Check List
Tests
Questions
Will it cause performance regression or break compatibility?
Do you need to update user documentation, design documentation or monitoring documentation?
Release note