pá 25. 1. 2019 v 5:46 odesílatel Chapman Flack <c...@anastigmatix.net> napsal:
> Hi, > > On 01/21/19 01:33, Pavel Stehule wrote: > > ne 20. 1. 2019 23:13 odesílatel Chapman Flack <c...@anastigmatix.net> > > napsal: > > >> form (whether or not the word LATERAL is used), and re-executes xmltable > >> whenever the referenced column value changes. In that case, whether the > >> default argument is evaluated at function entry or later doesn't seem > >> to matter: the function is re-executed, so evaluating the new default > >> at the time of entry is sufficient. > > > > it has sense only for volatile functions. it was not often. On second > hand > > deferred evaluation shoul not be a problem, and more, it is evaluated > only > > when it is necessary, what is more sensible for me. > > That makes sense. I trimmed the language about input rows and referring to > earlier columns, and put more emphasis on the usefulness of evaluating > volatile functions only when needed. > > I am: > > - re-attaching xmltable-xpath-result-processing-bugfix-5.patch unchanged > (just so CF app does not lose track) > > - re-attaching xmltable-xmlexists-passing-mechanisms-1.patch unchanged > > - attaching for the first time xml-functions-type-docfix-1.patch > > The doc patch is made to go on top of the passing-mechanisms patch > (there were some doc changes in passing-mechanisms, changed again in > the new patch to be links to the added Limits and Compatibility section). > > I hope the patched docs describe accurately what we have at this point. > looks well Pavel > Regards, > -Chap >
