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Enable postgres checksums#1185

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ololobus wants to merge 6 commits intomainneondatabase/neon:mainfrom pg-checksumsneondatabase/neon:pg-checksumsCopy head branch name to clipboard

+323-29

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Commits on Jul 7, 2022

• Calculate postgres checksum for FPI stored in pageserver (neondatabase/cloud#536)

  

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• Enable Postgres data checksums (neondatabase/cloud#536)

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• Bump vendor/postgres

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• Verify checksum of the page and WAL records before sending to the redo process

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• Turn off data-checksums for old tenants by default and explicitly enable for new ones

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• Add safety notes, benchmark. Optimize checksum calculation

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