store: sdb_store_get_field: Make result parameter optional.

[sysdb.git] / src / include / core / store.h

diff --git a/src/include/core/store.h b/src/include/core/store.h
index 90416a2cc0699cc3df67d50ac516a1d415a9f058..7aeb2875e9cbe302ad0311fc352e824eba8435a1 100644 (file)
--- a/src/include/core/store.h
+++ b/src/include/core/store.h
@@ -241,7 +241,8 @@ sdb_store_fetch_timeseries(const char *hostname, const char *metric,
  * sdb_store_get_field:
  * Get the value of a stored object's queryable field. The caller is
  * responsible for freeing any dynamically allocated memory possibly stored in
- * the returned value.
+ * the returned value. If 'res' is NULL, the function will return whether the
+ * field exists.
  *
  * Note: Retrieving the backend this way is not currently supported.
  *