Track pg_stat_database temp_files and temp_bytes#818
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We collect temp_files and temp_bytes from pg_stat_database as diffed counters, providing server-wide spill data to complement per-query temp_blks from pg_stat_statements.
lfittl
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May 15, 2026
| int32 xact_rollback = 5; // Number of transactions in this database that have been rolled back | ||
| int64 untracked_cache_bytes = 6; // Size of Postgres buffer cache not associated with tables tracked by the collector | ||
| int32 temp_files = 7; // Number of temporary files created by queries in this database (diff) | ||
| int64 temp_bytes = 8; // Total data written to temporary files by queries in this database (diff) |
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I'd drop the (diff) part of the comment since I think that's clear from the overall context (and other fields don't have it).
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We collect
temp_filesandtemp_bytesfrompg_stat_databaseas diffed counters, providing server-wide spill data to complement per-querytemp_blksfrompg_stat_statements.