Thomas Munro 47a338cfcd Fix SxactGlobalXmin tracking. ... Commit bb16aba50 broke the code that maintains SxactGlobalXmin. It could get stuck when a well-timed READ ONLY transaction runs. If SxactGlobalXmin stops advancing, transactions on the FinishedSerializableTransactions queue are never cleaned up, so resources are effectively leaked. Revert that hunk of the commit. Also revert another similar hunk that was probably harmless, but unnecessary and unjustified, relating to the DOOMED flag in case of RO_SAFE early release. Author: Thomas Munro Reported-by: Tom Lane Discussion: https://postgr.es/m/16170.1557251214%40sss.pgh.pa.us		2019-05-09 20:32:26 +12:00
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buffer	Refactor the fsync queue for wider use.	2019-04-04 23:38:38 +13:00
file	Simplify some ERROR paths clearing wait events and transient files	2019-04-17 09:51:45 +09:00
freespace	Revert "Avoid the creation of the free space map for small heap relations".	2019-05-07 09:30:24 +05:30
ipc	Unify error messages	2019-04-24 09:26:13 -04:00
large_object	Remove superfluous tqual.h includes.	2019-01-21 12:15:02 -08:00
lmgr	Fix SxactGlobalXmin tracking.	2019-05-09 20:32:26 +12:00
page	Track block level checksum failures in pg_stat_database	2019-03-09 10:47:30 -08:00
smgr	Fix function names in comments.	2019-04-25 23:43:48 +09:00
sync	Fix function names in comments.	2019-04-25 23:43:48 +09:00
Makefile	Refactor the fsync queue for wider use.	2019-04-04 23:38:38 +13:00