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1b11561cc1
Most code prints PIDs as %d, but some code tried to print them as long or unsigned long. While this is in theory allowed, the fact that PIDs fit into int is deeply baked into all PostgreSQL code, so these random deviations don't accomplish anything except confusion. Note that we still need casts from pid_t to int, because on 64-bit MinGW, pid_t is long long int. (But per above, actually supporting that range in PostgreSQL code would be major surgery and probably not useful.) Discussion: https://www.postgresql.org/message-id/289c2e45-c7d9-5ce4-7eff-a9e2a33e1580@enterprisedb.com