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* [PATCH 2/3] Allow composite types in bootstrap
@ 2020-11-17 15:28 Justin Pryzby <[email protected]>
0 siblings, 0 replies; 2+ messages in thread
From: Justin Pryzby @ 2020-11-17 15:28 UTC (permalink / raw)
---
src/backend/bootstrap/bootstrap.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/src/backend/bootstrap/bootstrap.c b/src/backend/bootstrap/bootstrap.c
index 18eb62ca47..e4fc75ab84 100644
--- a/src/backend/bootstrap/bootstrap.c
+++ b/src/backend/bootstrap/bootstrap.c
@@ -916,6 +916,7 @@ gettype(char *type)
{
if (Typ != NIL)
{
+ static bool did_reread PG_USED_FOR_ASSERTS_ONLY = false; /* Already reread pg_types */
ListCell *lc;
foreach (lc, Typ)
@@ -927,6 +928,33 @@ gettype(char *type)
return app->am_oid;
}
}
+
+ /*
+ * The type wasn't known; check again to handle composite
+ * types, added since first populating the array.
+ */
+
+ /*
+ * Once all the types are populated and we handled composite
+ * types, shouldn't need to do that again.
+ */
+ Assert(!did_reread);
+ did_reread = true;
+
+ list_free_deep(Typ);
+ Typ = NULL;
+ populate_typ_array();
+
+ /* Need to avoid infinite recursion... */
+ foreach (lc, Typ)
+ {
+ struct typmap *app = lfirst(lc);
+ if (strncmp(NameStr(app->am_typ.typname), type, NAMEDATALEN) == 0)
+ {
+ Ap = app;
+ return app->am_oid;
+ }
+ }
}
else
{
--
2.26.2
--------------EED78D4A67CFF327F6B880D2
Content-Type: text/x-patch; charset=UTF-8;
name="0003-Extended-statistics-on-expressions-20210122b.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename="0003-Extended-statistics-on-expressions-20210122b.patch"
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: use a non-locking initial test in TAS_SPIN on AArch64
@ 2025-01-08 20:30 Nathan Bossart <[email protected]>
0 siblings, 0 replies; 2+ messages in thread
From: Nathan Bossart @ 2025-01-08 20:30 UTC (permalink / raw)
To: Tom Lane <[email protected]>; +Cc: pgsql-hackers; [email protected]
On Wed, Jan 08, 2025 at 03:23:45PM -0500, Tom Lane wrote:
> I just acquired an M4 Pro, which may also be too small to show any
> effect, but perhaps running the test there would at least give us
> more confidence that there's not a bad effect. Which test case(s)
> would you recommend trying?
Thanks! A select-only pgbench with many clients (I used 256 upthread) and
pg_stat_statements.track_planning enabled seems to be a pretty easy way to
stress spinlocks. The same test without track_planning enabled might also
be interesting. I'm looking for a way to stress LWLocks, too, and I will
share here when I either find an existing test or write something of my
own.
--
nathan
^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2025-01-08 20:30 UTC | newest]
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2020-11-17 15:28 [PATCH 2/3] Allow composite types in bootstrap Justin Pryzby <[email protected]>
2025-01-08 20:30 Re: use a non-locking initial test in TAS_SPIN on AArch64 Nathan Bossart <[email protected]>
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