Alvaro Herrera b060dbe000 Rework XLogReader callback system ... Code review for 0dc8ead463, prompted by a bug closed by 91c40548d5. XLogReader's system for opening and closing segments had gotten too complicated, with callbacks being passed at both the XLogReaderAllocate level (read_page) as well as at the WALRead level (segment_open). This was confusing and hard to follow, so restructure things so that these callbacks are passed together at XLogReaderAllocate time, and add another callback to the set (segment_close) to make it a coherent whole. Also, ensure XLogReaderState is an argument to all the callbacks, so that they can grab at the ->private data if necessary. Document the whole arrangement more clearly. Author: Álvaro Herrera <alvherre@alvh.no-ip.org> Reviewed-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com> Discussion: https://postgr.es/m/20200422175754.GA19858@alvherre.pgsql		2020-05-08 15:40:11 -04:00
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brin	Implement operator class parameters	2020-03-30 19:17:23 +03:00
common	Implement operator class parameters	2020-03-30 19:17:23 +03:00
gin	Modify additional power 2 calculations to use new helper functions	2020-04-08 18:29:51 +12:00
gist	Skip WAL for new relfilenodes, under wal_level=minimal.	2020-04-04 12:25:34 -07:00
hash	Modify various power 2 calculations to use new helper functions	2020-04-08 16:55:03 +12:00
heap	Change the display of WAL usage statistics in Explain.	2020-05-05 08:00:53 +05:30
index	Remove rudiments of supporting procnum == 0 from 911e702077	2020-03-30 23:43:25 +03:00
nbtree	Refactor nbtree deletion INCOMPLETE_SPLIT check.	2020-05-07 16:08:54 -07:00
rmgrdesc	Harmonize nbtree page split point code.	2020-04-13 16:39:55 -07:00
spgist	Fix missing SP-GiST support in 911e702077	2020-03-30 23:45:03 +03:00
table	Introduce macros for typalign and typstorage constants.	2020-03-04 10:34:25 -05:00
tablesample	Move src/backend/utils/hash/hashfn.c to src/common	2020-02-27 09:25:41 +05:30
transam	Rework XLogReader callback system	2020-05-08 15:40:11 -04:00
Makefile	Introduce access/{table.h, relation.h}, for generic functions from heapam.h.	2019-01-21 10:51:36 -08:00