I'm considering using CLUSTER to reorder a table by an index. I understand that this recreation of the table data makes all the existing indexes either bloat or be useless. I've seen some indications that a REINDEX is required after a CLUSTER. I've found other references that indicate that CLUSTER does a REINDEX. The Official Documentation says nothing at all about REINDEX being part of CLUSTER or required (Although it does suggest running ANALYZE after the CLUSTER)
Can anyone definitively (i.e. with some sort of reference to official docs) say whether or not a REINDEX is required after a CLUSTER?