David Gould wrote:
> I've tracked down how this happens and created a reproduction script and a
> patch. Attached:
>
> - vac_estimate_reltuples.patch Patch against master
> - README.txt Instructions for testing
> - reltuples_analyze_bug.sql Reproduction script
> - analyze_counts.awk Helper for viewing results of test
> - test_standard.txt Test output for unpatched postgresql 10.1
> - test_patched.txt Test output with patch
Great work. Please make sure to register this as a bug fix in the
next commitfest.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services