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Fix variable lifespan in ExecInitCoerceToDomain(). 

This undoes a mistake in 1ec7679f1: domainval and domainnull were
meant to live across loop iterations, but they were incorrectly
moved inside the loop.  The effect was only to emit useless extra
EEOP_MAKE_READONLY steps, so it's not a big deal; nonetheless,
back-patch to v13 where the mistake was introduced.

Ranier Vilela

Discussion: https://postgr.es/m/CAEudQAqXuhbkaAp-sGH6dR6Nsq7v28_0TPexHOm6FiDYqwQD-w@mail.gmail.com
This commit is contained in:
Tom Lane 2021-11-02 13:36:47 -04:00
parent 7d9ec0754a
commit 01fc652703
1 changed files with 2 additions and 2 deletions
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4
src/backend/executor/execExpr.c
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@ -3137,6 +3137,8 @@ ExecInitCoerceToDomain(ExprEvalStep *scratch, CoerceToDomain *ctest,
ExprState *state, Datum *resv, bool *resnull)
{
DomainConstraintRef *constraint_ref;
Datum *domainval = NULL;
bool *domainnull = NULL;
ListCell *l;
scratch->d.domaincheck.resulttype = ctest->resulttype;
@ -3183,8 +3185,6 @@ ExecInitCoerceToDomain(ExprEvalStep *scratch, CoerceToDomain *ctest,
foreach(l, constraint_ref->constraints)
{
DomainConstraintState *con = (DomainConstraintState *) lfirst(l);
Datum *domainval = NULL;
bool *domainnull = NULL;
Datum *save_innermost_domainval;
bool *save_innermost_domainnull;