| From: | Zhang Mingli <zmlpostgres(at)gmail(dot)com> |
|---|---|
| To: | Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Maxim Orlov <orlovmg(at)gmail(dot)com> |
| Cc: | Pavel Borisov <pashkin(dot)elfe(at)gmail(dot)com>, Aleksander Alekseev <aleksander(at)timescale(dot)com>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Ilya Anfimov <ilan(at)tzirechnoy(dot)com> |
| Subject: | Re: Add 64-bit XIDs into PostgreSQL 15 |
| Date: | 2022-09-20 08:15:40 |
| Message-ID: | 8d4c0e9b-85ce-40bb-b8fb-5af99d61abd8@Spark |
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| Thread: | |
| Lists: | pgsql-hackers |
Hi,
With these patches, it seems that we don’t need to handle wraparound in
GetNextLocalTransactionId() too, as LocalTransactionId is unit64 now.
```
LocalTransactionId
GetNextLocalTransactionId(void)
{
LocalTransactionId result;
/* loop to avoid returning InvalidLocalTransactionId at wraparound */
do
{
result = nextLocalTransactionId++;
} while (!LocalTransactionIdIsValid(result));
return result;
}
```
Regards,
Zhang Mingli
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