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postgresql/src/include/access
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Andres Freund fc49e24fa6 Make WAL segment size configurable at initdb time. 
For performance reasons a larger segment size than the default 16MB
can be useful. A larger segment size has two main benefits: Firstly,
in setups using archiving, it makes it easier to write scripts that
can keep up with higher amounts of WAL, secondly, the WAL has to be
written and synced to disk less frequently.

But at the same time large segment size are disadvantageous for
smaller databases. So far the segment size had to be configured at
compile time, often making it unrealistic to choose one fitting to a
particularly load. Therefore change it to a initdb time setting.

This includes a breaking changes to the xlogreader.h API, which now
requires the current segment size to be configured.  For that and
similar reasons a number of binaries had to be taught how to recognize
the current segment size.

Author: Beena Emerson, editorialized by Andres Freund
Reviewed-By: Andres Freund, David Steele, Kuntal Ghosh, Michael
    Paquier, Peter Eisentraut, Robert Hass, Tushar Ahuja
Discussion: https://postgr.es/m/CAOG9ApEAcQ--1ieKbhFzXSQPw_YLmepaa4hNdnY5+ZULpt81Mw@mail.gmail.com
 		2017-09-19 22:03:48 -07:00
..
amapi.h Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
amvalidate.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
attnum.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin_internal.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin_page.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin_pageops.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin_revmap.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin_tuple.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
brin_xlog.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
bufmask.h Remove inclusion of postgres.h from a few header files. 2017-03-08 08:18:12 -05:00
clog.h Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
commit_ts.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
genam.h Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
generic_xlog.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
gin.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
gin_private.h Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
ginblock.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
ginxlog.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
gist.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
gist_private.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
gistscan.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
gistxlog.h Split index xlog headers from other private index headers. 2017-02-14 15:37:59 -05:00
hash.h Introduce 64-bit hash functions with a 64-bit seed. 2017-08-31 22:21:21 -04:00
hash_xlog.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
heapam.h Separate reinitialization of shared parallel-scan state from ExecReScan. 2017-08-30 13:18:16 -04:00
heapam_xlog.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
hio.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
htup.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
htup_details.h Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n). 2017-08-20 11:19:07 -07:00
itup.h Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n). 2017-08-20 11:19:07 -07:00
multixact.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
nbtree.h Minor code-cleanliness improvements for btree. 2017-09-18 16:36:28 -04:00
nbtxlog.h Remove dedicated B-tree root-split record types. 2017-08-16 12:24:40 +03:00
parallel.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
printsimple.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
printtup.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
reloptions.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
relscan.h Use atomic ops to hand out pages to scan in parallel scan. 2017-08-16 16:18:41 +03:00
rewriteheap.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
rmgr.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
rmgrlist.h hash: Support WAL consistency checking. 2017-03-14 14:58:56 -04:00
sdir.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
session.h Avoid duplicate typedef for SharedRecordTypmodRegistry. 2017-09-15 00:25:33 -04:00
skey.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
slru.h Remove outdated comment 2017-06-30 14:43:05 -04:00
spgist.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
spgist_private.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
spgxlog.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
stratnum.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
subtrans.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
sysattr.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
timeline.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
transam.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
tsmapi.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
tupconvert.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
tupdesc.h Add support for coordinating record typmods among parallel workers. 2017-09-14 19:59:21 -07:00
tupmacs.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
tuptoaster.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
twophase.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
twophase_rmgr.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
valid.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
visibilitymap.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
xact.h Fix handling of savepoint commands within multi-statement Query strings. 2017-09-07 09:49:55 -04:00
xlog.h Make WAL segment size configurable at initdb time. 2017-09-19 22:03:48 -07:00
xlog_internal.h Make WAL segment size configurable at initdb time. 2017-09-19 22:03:48 -07:00
xlogdefs.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
xloginsert.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
xlogreader.h Make WAL segment size configurable at initdb time. 2017-09-19 22:03:48 -07:00
xlogrecord.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
xlogutils.h Post-PG 10 beta1 pgindent run 2017-05-17 16:31:56 -04:00