On 2018-06-05 17:11:17 -0400, Chapman Flack wrote: > On 06/05/2018 04:57 PM, Andres Freund wrote: > > But we don't really change the > > collation of function invocations per-call. > > Is that true? (Not a rhetorical question; I'm unsure.)
Yes, it is at the moment. > Is your argument that the expression's collation is determined once > for each call /site/, and thereafter doesn't change over repeated > invocations via any one call site, and a unique FmgrInfo is > populated at each call site? Yes, that's pretty much how it works. Greetings, Andres Freund