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Hi!<div><br><div><div>On Oct 4, 2007, at 11:21 AM, Dustin Sallings wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div><span class="Apple-style-span" style="color: rgb(0, 99, 18); -webkit-text-stroke-width: -1; "><span class="Apple-tab-span" style="white-space:pre"> </span>Tags aren't intended to be an index, just a mass invalidation mechanism. It's *possible* to use them as an index, but not in any cheap way.</span></div></span></blockquote></div></blockquote><div><br class="webkit-block-placeholder"></div>I can imagine that they will get used as such though. Give someone a wrench, and if they need to do surgery, and lack the proper tool, somehow they will use the wrench :)</div><div><br class="webkit-block-placeholder"></div><div>If I can create a list of objects, then I can make this happen. The other option is to have an "append set", that way I can just push in appended data into one node and read from it whenever I need too (which does not give you the option of deleting, unless you allow someone to acquire a write lock on an object).</div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><blockquote type="cite"><div><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div>2) Allow the "set" of an object with its tag name. This will solve the problem of creating an object and then tagging the object.</div></span></blockquote><div><span class="Apple-style-span" style="-webkit-text-stroke-width: -1; "><span class="Apple-tab-span" style="white-space:pre"> </span>If you can prove that setandtag is *considerably* cheaper than set+tag, then it could possibly be added as an extension.</span></div></div></blockquote><div><br class="webkit-block-placeholder"></div>It would be hard to say until I saw the implementation. The cost of parsing out the extra bit of information, vs parsing out an entirely new command. The nice thing about one command is you can get a more atomic response. AKA my client dies between set and tag.</div><div><br><blockquote type="cite"><div><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div>3) Clear an object from a tag.</div></span></blockquote><div><span class="Apple-tab-span" style="white-space:pre"> </span>You mean untagging an object? It's not clear to me how that would ever be used. I imagine people will be setting and tagging around the same time, and would never want to go back and say, ``no, that really *isn't* dependent on this information.''<br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>How would you imagine this being used?</div></div></blockquote><div><br class="webkit-block-placeholder"></div>Having an object belong to multiple tags, but allowing me to remove it from a particular tag set. For instance on slashdot you could request all stories under a certain tag, but if users decided that the tag was no longer accurate it could be removed.</div><div><br class="webkit-block-placeholder"></div><div>And yes, if you have multiple tags on an object, it is possible to do secondary indexes.</div><div><br class="webkit-block-placeholder"></div><div>Cheers,</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>-Brian<br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">--</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Brian "Krow" Aker, brian at tangent.org</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Seattle, Washington</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://krow.net/"><span class="Apple-style-span" style="color: rgb(0, 0, 238); -khtml-text-decorations-in-effect: underline; "><span class="Apple-style-span" style="color: rgb(0, 0, 238); -khtml-text-decorations-in-effect: underline; ">http://krow.net</span></span></a>/ <-- Me</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://tangent.org/"><span class="Apple-style-span" style="color: rgb(0, 0, 238); -khtml-text-decorations-in-effect: underline; "><span class="Apple-style-span" style="color: rgb(0, 0, 238); -khtml-text-decorations-in-effect: underline; ">http://tangent.org</span></span></a>/ <-- Software</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://exploitseattle.com">http://exploitseattle.com</a>/ <-- Fun</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">You can't grep a dead tree.</div><br class="Apple-interchange-newline"></span></span> </div><br></div></body></html>