Mostly-cosmetic adjustments to estimate_multivariate_bucketsize(). The only practical effect of these changes is to avoid a useless list_copy() operation when there is a single hashclause. That's never going to make any noticeable performance difference, but the code is arguably clearer this way, especially if we take the opportunity to add some comments so that readers don't have to reverse-engineer the usage of these local variables. Also add some braces for better/more consistent style.
Author: Tender Wang <tndrw...@gmail.com> Reviewed-by: Tom Lane <t...@sss.pgh.pa.us> Discussion: https://postgr.es/m/CAHewXNnHBOO9NEa=nbdyorwzl4ohu2noctyvqynyweswo8f...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/aadf7db66ef5a8a723eb3362e2c8b460738f1107 Modified Files -------------- src/backend/utils/adt/selfuncs.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)
