On Tue, Jul 3, 2018 at 05:00:17PM -0400, Tom Lane wrote: > Thomas Kellerer <spam_eater@xxxxxxx> writes: > > A recent discussion around timestamptz behaviour has lead me to question my own understanding on how a TIMESTAMPTZ is converted to the session's time zone. > > I assumed this conversion happens *on the server* before the value is sent to the client. > > It's done in the datatype's output conversion function. > > > A co-worker of mine claims that this is purely a client side thing, and that the server will always send the "plain" UTC value that is stored in a timestamptz column. > > Your co-worker is certainly wrong so far as text output is concerned. > If you retrieve data in binary format, though, it looks like you get > the raw (un-rotated) timestamp value, so that any conversion would have > to be done on the client side. Wow, I am kind of surprised by that. Do any other data types have this behavior? -- Bruce Momjian <bruce@xxxxxxxxxx> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +
