Teach convert() and friends to avoid copying when possible. Presently, pg_convert() allocates a new bytea and copies the result regardless of whether any conversion actually happened. This commit adjusts this function to return the source pointer as-is if no conversion occurred. This optimization isn't expected to make a tremendous difference, but it still seems worthwhile to avoid unnecessary memory allocations.
Author: Yurii Rashkovskii Reviewed-by: Bertrand Drouvot Discussion: https://postgr.es/m/CA%2BRLCQyknBPSWXRBQGOi6aYEcdQ9RpH9Kch4GjoeY8dQ3D%2Bvhw%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/b14b1eb4da4c97afec24cf8956e842b98ebb2a51 Modified Files -------------- src/backend/utils/mb/mbutils.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)