Problem

Query planner relies on these methods from IndexCatalogEntry to prepare IndexEntry in QueryPlannerParams.

• IndexCatalogEntry::isMultikey()
• IndexCatalogEntry::getMultikeyPaths()

However, if an index is corrupted as in HELP-65833 where isMultikey() may return false while getMultikeyPaths() returns a non-empty vector, a query planner may and hence produce incorrect results.

Action Item

• When preparing IndexEntry, if isMultikey() return false, also checks getMultikeyPaths() to see if it returns empty array. If not, set IndexEntry::isMultikey to true.
• Log whenever it observes multikey path inconsistency from IndexCatalogEntry.