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PL/Python: Remove procedure cache invalidation 

This was added to react to changes in the pg_transform catalog, but
building with CLOBBER_CACHE_ALWAYS showed that PL/Python was not
prepared for having its procedure cache cleared.  Since this is a
marginal use case, and we don't do this for other catalogs anyway, we
can postpone this to another day.
This commit is contained in:
Peter Eisentraut 2015-05-12 22:52:18 -04:00
parent 4af6e61a36
commit dcf5e31908
1 changed files with 0 additions and 24 deletions
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24
src/pl/plpython/plpy_procedure.c
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@ -29,7 +29,6 @@
static HTAB *PLy_procedure_cache = NULL;
static PLyProcedure *PLy_procedure_create(HeapTuple procTup, Oid fn_oid, bool is_trigger);
static void invalidate_procedure_caches(Datum arg, int cacheid, uint32 hashvalue);
static bool PLy_procedure_argument_valid(PLyTypeInfo *arg);
static bool PLy_procedure_valid(PLyProcedure *proc, HeapTuple procTup);
static char *PLy_procedure_munge_source(const char *name, const char *src);
@ -45,29 +44,6 @@ init_procedure_caches(void)
hash_ctl.entrysize = sizeof(PLyProcedureEntry);
PLy_procedure_cache = hash_create("PL/Python procedures", 32, &hash_ctl,
HASH_ELEM | HASH_BLOBS);
CacheRegisterSyscacheCallback(TRFTYPELANG,
invalidate_procedure_caches,
(Datum) 0);
}
static void
invalidate_procedure_caches(Datum arg, int cacheid, uint32 hashvalue)
{
HASH_SEQ_STATUS status;
PLyProcedureEntry *hentry;
Assert(PLy_procedure_cache != NULL);
/* flush all entries */
hash_seq_init(&status, PLy_procedure_cache);
while ((hentry = (PLyProcedureEntry *) hash_seq_search(&status)))
{
if (hash_search(PLy_procedure_cache,
(void *) &hentry->key,
HASH_REMOVE, NULL) == NULL)
elog(ERROR, "hash table corrupted");
}
}
/*