Thread: pgsql: Allow parallel create index to accumulate buffer usage stats.
Allow parallel create index to accumulate buffer usage stats. Currently, we don't account for buffer usage incurred by parallel workers for parallel create index. This commit allows each worker to record the buffer usage stats and leader backend to accumulate that stats at the end of the operation. This will allow pg_stat_statements to display correct buffer usage stats for (parallel) create index command. Reported-by: Julien Rouhaud Author: Sawada Masahiko Reviewed-by: Dilip Kumar, Julien Rouhaud and Amit Kapila Backpatch-through: 11, where this was introduced Discussion: https://postgr.es/m/20200328151721.GB12854@nol Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/5c71362174eb56676f8b91c73ec066dd5513fd4b Modified Files -------------- src/backend/access/nbtree/nbtsort.c | 34 +++++++++++++++++++++++++--------- src/backend/executor/instrument.c | 10 +++------- 2 files changed, 28 insertions(+), 16 deletions(-)