Alvaro Herrera-9 wrote > On 2018-Nov-28, Tom Lane wrote: > >> This would also entail rather significant overhead to find out schema >> names and interpolate them into the text. > > True. I was thinking that the qualified-names version of the query > would be obtained via ruleutils or some similar mechanism to deparse > from the parsed query tree (not from the original query text), where > only pg_catalog is considered visible. This would be enabled using a > GUC that defaults to off.
maybe that explain on "table with many columns" suffers from the same problem, see: https://www.postgresql.org/message-id/1537816948278-0.post%40n3.nabble.com https://www.postgresql.org/message-id/20180924195048.7dhnjvq5ggwjt...@alap3.anarazel.de regards PAscal -- Sent from: http://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html