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Rename WAL-related functions and views to use "lsn" not "location".

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Per discussion, "location" is a rather vague term that could refer to
multiple concepts.  "LSN" is an unambiguous term for WAL locations and
should be preferred.  Some function names, view column names, and function
output argument names used "lsn" already, but others used "location",
as well as yet other terms such as "wal_position".  Since we've already
renamed a lot of things in this area from "xlog" to "wal" for v10,
we may as well incur a bit more compatibility pain and make these names
all consistent.

David Rowley, minor additional docs hacking by me

Discussion: https://postgr.es/m/CAKJS1f8O0njDKe8ePFQ-LK5-EjwThsDws6ohJ-+c6nWK+oUxtg@mail.gmail.com
This commit is contained in:
Tom Lane
2017-05-11 11:49:59 -04:00
parent b66adb7b0c
commit d10c626de4
31 changed files with 185 additions and 185 deletions
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contrib/test_decoding/sql/ddl.sql
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@ -29,7 +29,7 @@ SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_d
SELECT slot_name, plugin, slot_type, active,
NOT catalog_xmin IS NULL AS catalog_xmin_set,
xmin IS NULl AS data_xmin_not_set,
pg_wal_location_diff(restart_lsn, '0/01000000') > 0 AS some_wal
pg_wal_lsn_diff(restart_lsn, '0/01000000') > 0 AS some_wal
FROM pg_replication_slots;
/*