| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Cache datatype-output-function lookup info across calls of conca |
| Date: | 2017-09-19 19:10:07 |
| Message-ID: | E1duNuJ-0000IM-Ih@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
Cache datatype-output-function lookup info across calls of concat().
Testing indicates this can save a third to a half of the runtime
of the function.
Pavel Stehule, reviewed by Alexander Kuzmenkov
Discussion: https://postgr.es/m/CAFj8pRAT62pRgjoHbgTfJUc2uLmeQ4saUj+yVJAEZUiMwNCmdg@mail.gmail.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/ed22fb8b0091deea23747310fa7609079a96cf82
Modified Files
--------------
src/backend/utils/adt/varlena.c | 54 ++++++++++++++++++++++++++++++++++-------
1 file changed, 45 insertions(+), 9 deletions(-)
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