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Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index a16a63f4957..94ca8e12303 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -3183,6 +3183,10 @@ get_attavgwidth(Oid relid, AttrNumber attnum) * * If it's desirable to call free_attstatsslot when get_attstatsslot might * not have been called, memset'ing sslot to zeroes will allow that. + * + * Passing flags=0 can be useful to quickly check if the requested slot type + * exists. In this case no arrays are extracted, so free_attstatsslot need + * not be called. */ bool get_attstatsslot(AttStatsSlot *sslot, HeapTuple statstuple, |