two questions about toast

From: Luca Ferrari <fluca1978(at)gmail(dot)com>
To: pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: two questions about toast
Date: 2020-11-15 17:03:44
Message-ID: CAKoxK+5x9J74Sn=rvGSu4dAkSdpF=9AoTjs9-KmnSGd6c03SxQ@mail.gmail.com
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Hi all,
I've a couple of doubts about toast:
1) is a REINDEX DATABASE hitting also toast tables or they need to be
reindexed manually?
2) while executing a query against toasted values I got this debug
message that I don't know what is meaning
DEBUG: building index "pg_toast_33875_index" on table "pg_toast_33875" serially

The query I was executing was:
SELECT lower( f::text ) || lower( t::text ) FROM crashy_table
WHERE id = '16385'
via a plpgsql PERFORM.

Thanks,
Luca

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