Hi, When recently debugging a vacuum-related issue, I noticed that there is some log-report processing/formatting code at the end of lazy_scan_heap() that, unless the vacuum VERBOSE option is specified, typically results in no log output (as the log-level is then DEBUG2). I think it is worth skipping this code if ultimately nothing is going to be logged (and I found that even for a tiny database, a VACUUM may execute this code hundreds of times). I have attached a simple patch for this.
Regards, Greg Nancarrow Fujitsu Australia
v1-0001-Skip-vacuum-log-report-processing-in-lazy_scan_heap-if-possible.patch
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