this post was submitted on 08 Nov 2025
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Why would repeatable read raise an error? I'm a little rusty but I thought it was only serialisable that could do, and that repeatable read simply ensured that the committed writes of transaction 2 would not be read in transaction 1, so it updating over the top of 2 is fine.
I think you're right. An
UPDATEwould fail, but not anINSERT.