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authorTom Lane2005-05-29 04:23:07 +0000
committerTom Lane2005-05-29 04:23:07 +0000
commite92a88272eb2b164e7e8c625ad3f7ad267e0224f (patch)
tree3ca62f2a6cdd52f78911a50b628f16e77e70be78 /contrib
parentecd70d75267ccf845e8f3976048d944e4ee35cf7 (diff)
Modify hash_search() API to prevent future occurrences of the error
spotted by Qingqing Zhou. The HASH_ENTER action now automatically fails with elog(ERROR) on out-of-memory --- which incidentally lets us eliminate duplicate error checks in quite a bunch of places. If you really need the old return-NULL-on-out-of-memory behavior, you can ask for HASH_ENTER_NULL. But there is now an Assert in that path checking that you aren't hoping to get that behavior in a palloc-based hash table. Along the way, remove the old HASH_FIND_SAVE/HASH_REMOVE_SAVED actions, which were not being used anywhere anymore, and were surely too ugly and unsafe to want to see revived again.
Diffstat (limited to 'contrib')
-rw-r--r--contrib/dblink/dblink.c5
-rw-r--r--contrib/tablefunc/tablefunc.c4
2 files changed, 0 insertions, 9 deletions
diff --git a/contrib/dblink/dblink.c b/contrib/dblink/dblink.c
index f23151ac146..b216dbeea98 100644
--- a/contrib/dblink/dblink.c
+++ b/contrib/dblink/dblink.c
@@ -2061,11 +2061,6 @@ createNewConnection(const char *name, remoteConn * con)
hentry = (remoteConnHashEnt *) hash_search(remoteConnHash, key,
HASH_ENTER, &found);
- if (!hentry)
- ereport(ERROR,
- (errcode(ERRCODE_OUT_OF_MEMORY),
- errmsg("out of memory")));
-
if (found)
ereport(ERROR,
(errcode(ERRCODE_DUPLICATE_OBJECT),
diff --git a/contrib/tablefunc/tablefunc.c b/contrib/tablefunc/tablefunc.c
index c364fc65954..0aa52b52814 100644
--- a/contrib/tablefunc/tablefunc.c
+++ b/contrib/tablefunc/tablefunc.c
@@ -144,10 +144,6 @@ do { \
snprintf(key, MAX_CATNAME_LEN - 1, "%s", CATDESC->catname); \
hentry = (crosstab_HashEnt*) hash_search(crosstab_HashTable, \
key, HASH_ENTER, &found); \
- if (hentry == NULL) \
- ereport(ERROR, \
- (errcode(ERRCODE_OUT_OF_MEMORY), \
- errmsg("out of memory"))); \
if (found) \
ereport(ERROR, \
(errcode(ERRCODE_DUPLICATE_OBJECT), \