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, Nathan Bossart, David Rowley Discussion: https://postgr.es/m/CANWCAZZvXuJMgqMN4u068Yqa19CEjS31tQKZp_qFFFbgYfaXqQ%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/e24d77080b365265f3c854f64e71518622883678 Modified Files -------------- src/backend/utils/adt/encode.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-)
