diff options
Diffstat (limited to 'src/backend/utils/hash/dynahash.c')
| -rw-r--r-- | src/backend/utils/hash/dynahash.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/backend/utils/hash/dynahash.c b/src/backend/utils/hash/dynahash.c index f718785ee47..d9027291ee3 100644 --- a/src/backend/utils/hash/dynahash.c +++ b/src/backend/utils/hash/dynahash.c @@ -160,6 +160,7 @@ struct HTAB MemoryContext hcxt; /* memory context if default allocator used */ char *tabname; /* table name (for error messages) */ bool isshared; /* true if table is in shared memory */ + bool isfixed; /* if true, don't enlarge */ /* freezing a shared table isn't allowed, so we can keep state here */ bool frozen; /* true = no more inserts allowed */ @@ -435,6 +436,8 @@ hash_create(const char *tabname, long nelem, HASHCTL *info, int flags) errmsg("out of memory"))); } + if (flags & HASH_FIXED_SIZE) + hashp->isfixed = true; return hashp; } @@ -1334,6 +1337,9 @@ element_alloc(HTAB *hashp, int nelem) HASHELEMENT *prevElement; int i; + if (hashp->isfixed) + return false; + /* Each element has a HASHELEMENT header plus user data. */ elementSize = MAXALIGN(sizeof(HASHELEMENT)) + MAXALIGN(hctlv->entrysize); |