On 2023-07-23 06:09:03 -0400, Gus Spier wrote: > Ah! Truncating a table does not entail all of WAL processes. From the > documentation, "TRUNCATE quickly removes all rows from a set of tables. It has > the same effect as an unqualified DELETE on each table, but since it does not > actually scan the tables it is faster. Furthermore, it reclaims disk space > immediately, rather than requiring a subsequent VACUUM operation. This is most > useful on large tables." https://www.postgresql.org/docs/14/sql-truncate.html
I assumed that by "deleting the now empty table" you meant DROPing it.
(Performing a «DELETE FROM t» just after a «TRUNCATE t» would obviously
be pointless).
So let me rephrase the question:
What's the advantage of
TRUNCATE t
DROP t
over just
DROP t
hp
--
_ | Peter J. Holzer | Story must make more sense than reality.
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| | | [email protected] | -- Charles Stross, "Creative writing
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