gp_workfile_checksumming

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gp_workfile_checksumming

Adds a checksum value to each block of a work file (or spill file) used by HashAgg and HashJoin query operators. This adds an additional safeguard from faulty OS disk drivers writing corrupted blocks to disk. When a checksum operation fails, the query will cancel and rollback rather than potentially writing bad data to disk.

Value Range Default Set Classifications
Boolean on master

session

reload