Support Unicode full case mapping and conversion.
Generate tables from Unicode SpecialCasing.txt to support more
sophisticated case mapping behavior:
* support case mappings to multiple codepoints, such as "ß"
uppercasing to "SS"
* support conditional case mappings, such as the "final sigma"
Support PG_UNICODE_FAST locale in the builtin collation provider.
The PG_UNICODE_FAST locale uses code point sort order (fast,
memcmp-based) combined with Unicode character semantics. The character
semantics are based on Unicode full case mapping.
Full case mapping can map a single codepoint to m
vacuumdb: Fix comment for vacuum_one_database().
Since commit e0c2933a76, vacuum_one_database() always uses a
catalog query to discover the tables to process, but this comment
still notes the special case for which we used a catalog query
before that commit. Let's just remove that note.
Also, co
Add documentation about calling version-1 C functions from C.
This topic wasn't really covered before, so fill in some details.
Author: Florents Tselai
Reviewed-by: Pavel Stehule
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/90853055-5bbd-493d-91e5-721677c7c...@gmail.com
Branch
--
Fix parsing of qualified relation names in RETURNING.
Given a qualified refname, refnameNamespaceItem() will search for a
matching namespace item by relation OID, rather than by name. Commit
80feb727c8 broke this by adding additional namespace items for OLD and
NEW in the RETURNING list, which hav
Speed up hex_encode with bytewise lookup
Previously, hex_encode looked up each nibble of the input
separately. We now use a larger lookup table containing the two-byte
encoding of every possible input byte, resulting in a 1/3 reduction
in encoding time.
Reviewed by Tom Lane, Michael Paquier, Nath
Remove flex version checks
Remove the flex version checks from configure and meson. The cutoff
versions are all so ancient that this is no longer relevant, and what
the actual cutoff should be is a bit fuzzy.
This also removes the ancient behavior that configure would also
accept a "lex" program
