<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On Oct 31, 2013, at 11:28 AM, Ian Young <<a href="mailto:ian@iay.org.uk">ian@iay.org.uk</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;">I can see what you're saying. I guess my first question would be whether you have a significant use case for the union operator that we should talk about; I think we've regarded it as fairly peripheral up to this point, which may be why it hasn't had much attention.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"></blockquote></div><br><div>Actually I don’t have one in mind, I am just used to RESTful APIs using list-of-IDs as an approach to consolidate multiple requests into one. I would prefer to use grouping tags for that, because I think that will make the requests more consistent and thus easier on the server.</div><div><br></div><div>-DW</div></body></html>