*
* NOTE: it is possible to use hash_seq_init/hash_seq_search without any
* worry about hash_seq_term cleanup, if the hashtable is first locked against
- * further insertions by calling hash_freeze. This is used by nodeAgg.c,
- * wherein it is inconvenient to track whether a scan is still open, and
- * there's no possibility of further insertions after readout has begun.
+ * further insertions by calling hash_freeze.
*
* NOTE: to use this with a partitioned hashtable, caller had better hold
* at least shared lock on all partitions of the table throughout the scan!