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Neither the blogpost(beside consistency which most people don't care much about) nor your post describe any issue.

> things got corrupted and indexes needed to be rebuilt.

How is postgres and elastic any different here?

I’ve no experience with Elastic but what they’re getting at I think is indexes in Elastic is actually your data because that’s all it does due to the purpose it was built for, whereas in Postgres indexes are, well, indexes — that is, derived data, not the source of truth.

But if data is corrupt, how is rebuilding index fixing anything. What kind of corruption are we talking about.

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