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50c67c2019
postgresql/contrib/bloom
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Thomas Munro f691f5b80a Remove the "snapshot too old" feature. 
Remove the old_snapshot_threshold setting and mechanism for producing
the error "snapshot too old", originally added by commit 848ef42b.
Unfortunately it had a number of known problems in terms of correctness
and performance, mostly reported by Andres in the course of his work on
snapshot scalability.  We agreed to remove it, after a long period
without an active plan to fix it.

This is certainly a desirable feature, and someone might propose a new
or improved implementation in the future.

Reported-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CACG%3DezYV%2BEvO135fLRdVn-ZusfVsTY6cH1OZqWtezuEYH6ciQA%40mail.gmail.com
Discussion: https://postgr.es/m/20200401064008.qob7bfnnbu4w5cw4%40alap3.anarazel.de
Discussion: https://postgr.es/m/CA%2BTgmoY%3Daqf0zjTD%2B3dUWYkgMiNDegDLFjo%2B6ze%3DWtpik%2B3XqA%40mail.gmail.com
2023-09-05 19:53:43 +12:00
..
expected Remove incidental md5() function uses from several tests 2023-07-04 14:31:57 +02:00
sql Remove incidental md5() function uses from several tests 2023-07-04 14:31:57 +02:00
t Remove incidental md5() function uses from several tests 2023-07-04 14:31:57 +02:00
.gitignore Bloom index contrib module 2016-04-01 16:42:24 +03:00
blcost.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
blinsert.c Use the buffer cache when initializing an unlogged index. 2023-08-23 17:21:31 +03:00
bloom--1.0.sql Minor fixes in contrib installation scripts. 2016-06-14 10:47:06 -04:00
bloom.control Bloom index contrib module 2016-04-01 16:42:24 +03:00
bloom.h Use the buffer cache when initializing an unlogged index. 2023-08-23 17:21:31 +03:00
blscan.c Remove the "snapshot too old" feature. 2023-09-05 19:53:43 +12:00
blutils.c Use the buffer cache when initializing an unlogged index. 2023-08-23 17:21:31 +03:00
blvacuum.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
blvalidate.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
Makefile Re-enable contrib/bloom's TAP tests. 2021-09-27 18:48:01 -04:00
meson.build Update copyright for 2023 2023-01-02 15:00:37 -05:00