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PG_FINALLY

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This gives an alternative way of catching exceptions, for the common
case where the cleanup code is the same in the error and non-error
cases.  So instead of

    PG_TRY();
    {
        ... code that might throw ereport(ERROR) ...
    }
    PG_CATCH();
    {
        cleanup();
	PG_RE_THROW();
    }
    PG_END_TRY();
    cleanup();

one can write

    PG_TRY();
    {
        ... code that might throw ereport(ERROR) ...
    }
    PG_FINALLY();
    {
        cleanup();
    }
    PG_END_TRY();

Discussion: https://www.postgresql.org/message-id/flat/95a822c3-728b-af0e-d7e5-71890507ae0c%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2019-11-01 11:09:52 +01:00
parent 7302514088
commit 604bd36711
32 changed files with 91 additions and 245 deletions
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10
src/backend/tcop/utility.c
View File

@@ -1514,13 +1514,11 @@ ProcessUtilitySlow(ParseState *pstate,
address = ExecRefreshMatView((RefreshMatViewStmt *) parsetree,
queryString, params, completionTag);
}
PG_CATCH();
PG_FINALLY();
{
EventTriggerUndoInhibitCommandCollection();
PG_RE_THROW();
}
PG_END_TRY();
EventTriggerUndoInhibitCommandCollection();
break;
case T_CreateTrigStmt:
@@ -1716,16 +1714,12 @@ ProcessUtilitySlow(ParseState *pstate,
EventTriggerDDLCommandEnd(parsetree);
}
}
PG_CATCH();
PG_FINALLY();
{
if (needCleanup)
EventTriggerEndCompleteQuery();
PG_RE_THROW();
}
PG_END_TRY();
if (needCleanup)
EventTriggerEndCompleteQuery();
}
/*