https://bugzilla.wikimedia.org/show_bug.cgi?id=45090
--- Comment #4 from christ...@quelltextlich.at --- (In reply to comment #3) > My current understanding is that these are equivalent: > > * ?q=limit:[integer] and &n=[integer] Yes, they are more or less equivalent. However, &n=[integer] provides you with a "_more_changes" field, while ?q=limit:[integer] does not. You can however circumvent this difference, by keeping the limiting integer below your queryLimit while still asking for 1 more result than needed. In some edge cases, gerrit will even give you one more result than your queryLimit allows for. > * ?q=sortkey_after:[sortkey] and &N=[sortkey] > * ?q=sortkey_before:[sortkey] and &P=[sortkey] It's actually the other way round. ?q=sortkey_after corresponds to &P= ?q=sortkey_before corresponds to &N= * sortkey is increasing for new changes. * &N= is for the /N/ext page of search results (i.e.: older changes, lower sortkeys, hence sortkey_before) * &P= is for the /P/revious page of search results (i.e.: newer changes, higher sortkeys, hence sortkey_after) As confusing as this is already, there are further differences. ?q=sortkey_after skips the first search result. So when comparing https://gerrit.wikimedia.org/r/changes/?P=00232fbd0000bc17&n=3 https://gerrit.wikimedia.org/r/changes/?q=sortkey_after:00232fbd0000bc17&n=3 you'll get something like sortkey In q=sortkey... ? In P=... ? ... ... ... 002330130000c1d5 no no 0023300f0000c1d8 no no 00232fff0000bc7b yes no 00232ff10000c1d6 yes yes 00232fec0000c1d3 yes yes 00232fd50000bf53 no yes 00232fbd0000bc17 <---- used sortkey Additionally, if you supply a &n=[integer] parameter to limit the number of results, the result set for a ?P= query has the "_more_changes" key set on the first object, while a &sortkey_after= query has it set on the last object. (This result skipping, and shuffling around "_more_changes" does not occur for ?q=sortkey_before or ?N= queries) Bottom line: When trying to process the data automatically, I'd go for using &n=[integer] to obtain "_more_changes" marker, but I would not rely on getting at most [integer] results. Be prepared that there may be one additional result in the result set. Furthermore, I'd go for the &N=, and &P= variants, keeping in mind that the "_more_changes" need not be at the end. -- You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug. You are watching all bug changes. _______________________________________________ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
