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postgresql/src/backend
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Nathan Bossart b14b1eb4da 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
2023-12-04 11:55:18 -06:00
..
access Fix an uninitialized access in hash_xlog_squeeze_page(). 2023-12-01 10:22:13 +05:30
archive Redesign archive modules 2023-02-17 14:26:42 +09:00
backup Change how a base backup decides which files have checksums. 2023-11-14 10:51:05 -05:00
bootstrap Remove distprep 2023-11-06 15:18:04 +01:00
catalog Add support for REINDEX in event triggers 2023-12-04 09:53:49 +09:00
commands Add support for REINDEX in event triggers 2023-12-04 09:53:49 +09:00
executor Reuse BrinDesc and BrinRevmap in brininsert 2023-11-25 20:27:28 +01:00
foreign Improve "user mapping not found" error message 2023-11-30 05:34:28 +01:00
jit Make ResourceOwners more easily extensible. 2023-11-08 13:30:50 +02:00
lib Make binaryheap available to frontend code. 2023-09-18 12:18:33 -07:00
libpq Apply quotes more consistently to GUC names in logs 2023-11-30 14:11:45 +09:00
main Remove obsolete defense against strxfrm() bugs. 2023-04-20 13:20:14 +12:00
nodes Remove distprep 2023-11-06 15:18:04 +01:00
optimizer Fix comment about ressortgrouprefs being unique in setop plans. 2023-11-28 14:15:14 +02:00
parser Clean up usage of bison precedence for non-operator keywords. 2023-11-28 13:32:15 -05:00
partitioning Add trailing commas to enum definitions 2023-10-26 09:20:54 +02:00
po Translation updates 2023-08-07 12:39:30 +02:00
port Remove distprep 2023-11-06 15:18:04 +01:00
postmaster Remove now-unnecessary Autovacuum[Launcher|Worker]IAm functions 2023-12-04 15:34:37 +02:00
regex Add trailing commas to enum definitions 2023-10-26 09:20:54 +02:00
replication Refactor CreateSharedMemoryAndSemaphores 2023-12-03 16:09:42 +02:00
rewrite Add TupleDescGetDefault() 2023-09-27 18:52:40 +01:00
snowball Remove distprep 2023-11-06 15:18:04 +01:00
statistics Retire MemoryContextResetAndDeleteChildren() macro. 2023-11-15 13:42:30 -06:00
storage Refactor how InitProcess is called 2023-12-03 16:39:18 +02:00
tcop Add support for REINDEX in event triggers 2023-12-04 09:53:49 +09:00
tsearch Limit to_tsvector_byid's initial array allocation to something sane. 2023-09-25 11:50:28 -04:00
utils Teach convert() and friends to avoid copying when possible. 2023-12-04 11:55:18 -06:00
.gitignore Add .gitignore entries for AIX-specific intermediate build artifacts. 2015-07-08 20:44:22 -04:00
common.mk Blind attempt to fix LLVM dependency in the backend 2022-09-15 10:53:48 +07:00
Makefile Remove distprep 2023-11-06 15:18:04 +01:00
meson.build Add win32ver data to meson-built postgres.exe. 2023-06-12 07:40:38 -07:00
nls.mk Remove distprep 2023-11-06 15:18:04 +01:00