Add base32hex support to encode() and decode() functions. This adds support for base32hex encoding and decoding, as defined in RFC 4648 Section 7. Unlike standard base32, base32hex uses the extended hex alphabet (0-9, A-V) which preserves the lexicographical order of the encoded data.
This is particularly useful for representing UUIDv7 values in a compact string format while maintaining their time-ordered sort property. The encode() function produces output padded with '=', while decode() accepts both padded and unpadded input. Following the behavior of other encoding types, decoding is case-insensitive. Suggested-by: Sergey Prokhorenko <[email protected]> Author: Andrey Borodin <[email protected]> Co-authored-by: Aleksander Alekseev <[email protected]> Reviewed-by: Masahiko Sawada <[email protected]> Reviewed-by: Илья Чердаков <[email protected]> Reviewed-by: Chengxi Sun <[email protected]> Reviewed-by: Chao Li <[email protected]> Discussion: https://postgr.es/m/CAJ7c6TOramr1UTLcyB128LWMqita1Y7%3Darq3KHaU%3Dqikf5yKOQ%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/497c1170cb108cd84fe13db19c049177376fec5f Modified Files -------------- doc/src/sgml/func/func-binarystring.sgml | 27 ++++++ src/backend/utils/adt/encode.c | 161 +++++++++++++++++++++++++++++- src/test/regress/expected/strings.out | 162 ++++++++++++++++++++++++++++++- src/test/regress/expected/uuid.out | 18 +++- src/test/regress/sql/strings.sql | 57 ++++++++++- src/test/regress/sql/uuid.sql | 8 +- 6 files changed, 420 insertions(+), 13 deletions(-)
