Christophe Pettus: All Your GUCs in a Row: data_checksums (opens in new tab)

A read-only preset, like block_size — SHOW data_checksums tells you whether the cluster has page checksums, and that’s the only interaction the GUC offers. But unlike block_size, this one has a thirteen-year history that’s still being written, and the history is the post. When checksums are on, e…