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Refactor Copy{From|To}GetRoutine() to use pass-by-reference argument.

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The change improves efficiency by eliminating unnecessary copying of
CopyFormatOptions.

The coverity also complained about inefficiencies caused by
pass-by-value.

Oversight in 7717f6300 and 2e4127b6d.

Reported-by: Junwang Zhao <zhjwpku@gmail.com>
Reported-by: Tom Lane <tgl@sss.pgh.pa.us> (per reports from coverity)
Author: Sutou Kouhei <kou@clear-code.com>
Reviewed-by: Junwang Zhao <zhjwpku@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/CAEG8a3L6YCpPksTQMzjD_CvwDEhW3D_t=5md9BvvdOs5k+TA=Q@mail.gmail.com
This commit is contained in:
Masahiko Sawada 2025-03-04 10:38:41 -08:00
parent 0b2a45a5d1
commit bacbc4863b
2 changed files with 8 additions and 8 deletions
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8
src/backend/commands/copyfrom.c
View File

@ -153,11 +153,11 @@ static const CopyFromRoutine CopyFromRoutineBinary = {
/* Return a COPY FROM routine for the given options */
static const CopyFromRoutine *
CopyFromGetRoutine(CopyFormatOptions opts)
CopyFromGetRoutine(const CopyFormatOptions *opts)
{
if (opts.csv_mode)
if (opts->csv_mode)
return &CopyFromRoutineCSV;
else if (opts.binary)
else if (opts->binary)
return &CopyFromRoutineBinary;
/* default is text */
@ -1574,7 +1574,7 @@ BeginCopyFrom(ParseState *pstate,
ProcessCopyOptions(pstate, &cstate->opts, true /* is_from */ , options);
/* Set the format routine */
cstate->routine = CopyFromGetRoutine(cstate->opts);
cstate->routine = CopyFromGetRoutine(&cstate->opts);
/* Process the target relation */
cstate->rel = rel;

8
src/backend/commands/copyto.c
View File

@ -174,11 +174,11 @@ static const CopyToRoutine CopyToRoutineBinary = {
/* Return a COPY TO routine for the given options */
static const CopyToRoutine *
CopyToGetRoutine(CopyFormatOptions opts)
CopyToGetRoutine(const CopyFormatOptions *opts)
{
if (opts.csv_mode)
if (opts->csv_mode)
return &CopyToRoutineCSV;
else if (opts.binary)
else if (opts->binary)
return &CopyToRoutineBinary;
/* default is text */
@ -700,7 +700,7 @@ BeginCopyTo(ParseState *pstate,
ProcessCopyOptions(pstate, &cstate->opts, false /* is_from */ , options);
/* Set format routine */
cstate->routine = CopyToGetRoutine(cstate->opts);
cstate->routine = CopyToGetRoutine(&cstate->opts);
/* Process the source/target relation or query */
if (rel)