On 03/12/2018 03:05 PM, Ron Johnson wrote:

According to this (https://pastebin.com/TJB32n5M) query, which I thought I got from https://wiki.postgresql.org/wiki/Index_Maintenance, a list of indexes and their bloat is generated.

After reindexing a table with a large amount of reported bloat (column bloat_pct says 29%), re-running the query shows no change in the amount

First I am not seeing a column bloat_pct in the query you linked to, so are you sure that is the actual query you used?

of bloat.  This is a historical table, and VACUUM VERBOSE shows that there's nothing to free up.

Is this something that I must live with, or am I misinterpreting the query?

Honestly I have not worked my way in depth through the query you show, though I did notice it uses pg_stats. What happens if run ANALYZE (https://www.postgresql.org/docs/8.4/static/sql-analyze.html) to update the stats?


Adrian Klaver

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