Index Advisor limitations v14
Index Advisor does not consider Index Only scans; it does consider Index scans when making recommendations.
Index Advisor ignores any computations found in the
WHERE clause. Effectively, the index field in the recommendations isn't any kind of expression; the field is a simple column name.
Index Advisor does not consider inheritance when recommending hypothetical indexes. If a query references a parent table, Index Advisor does not make any index recommendations on child tables.
Restoration of a
pg_dump backup file that includes the
index_advisor_log table or any tables for which indexing recommendations were made and stored in the
index_advisor_log table, may result in "broken links" between the
index_advisor_log table and the restored tables referenced by rows in the
index_advisor_log table because of changes in object identifiers (OIDs).
If it is necessary to display the recommendations made prior to the backup, you can replace the old OIDs in the
reloid column of the
index_advisor_log table with the new OIDs of the referenced tables using the SQL