Only in 0.7 Bye, Norman
2010/10/6 Brayton Thompson <thomp...@grnoc.iu.edu>: > Are secondary index's available in .6.5? or are they only in .7? > On Oct 6, 2010, at 1:15 PM, Tyler Hobbs wrote: > > If you're interested in only checking part of a column's value, you can > generally > just store that part of the value in a different column. So, have an > "email_addr" column > and a "email_domain" column, which stores "aol.com", for example. > > Then you can just use a secondary index on the "email_domain" column. > > - Tyler > > On Wed, Oct 6, 2010 at 10:33 AM, Brayton Thompson <thomp...@grnoc.iu.edu> > wrote: >> >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Ok, I am VERY new to Cassandra and trying to get my head around its core >> ideas. >> >> So lets say I have a CF of Users that contains all the info I would ever >> want to know about them. One day I decide(for some reason) that I want to >> send a mass email to only the users with AOL email addresses. Is there a >> mechanism for getting only keys whose email attribute contains the string >> @aol.com ? Or is this frowned upon? I could also envision separate CF's for >> each email type; that stored values to use as keys into my Users CF. Say the >> AOL CF contains the usernames of everyone that has an aol account. So I >> would pull all of the keys from that CF and then use them to index into the >> Users CF to pull their email addresses. It seems to me that this is >> redundant. So I would like your thoughts on my example. >> >> Thank you, >> Brayton Thompson >> thomp...@grnoc.iu.edu >> Global Research Network Operation Center >> Indiana University >> -----BEGIN PGP SIGNATURE----- >> Version: GnuPG/MacGPG2 v2.0.14 (Darwin) >> >> iQIcBAEBAgAGBQJMrJa1AAoJENisXTckM+p9ffcP/1UmNDyWxDnOu41ZRcVwmJiE >> +47QxqNc57WmdXX86FUvcauhPFFNZfbrbGwA61sof1sktSOL83osOXQuOfGr5GvT >> tulU3+rQ1B+ea0x+aBESbKZwXHxckLGdst2Hro1eCVXEna+VvqkxNJ2rvYzE3hNM >> FTNBWDIv3JbOChTYBnycBqg1iG5yMDkc2xEHlaiw9S/VsOPU18pPYrf42eoSqgnk >> /rZDCxxiThznuaLI70QnU3O7ZTiyXpavN8BUW6KoeDZNAypgg1AayhEL2d67zZWu >> qtnGEpoIeieinjccWMpkUrv2f14CZQ5gbJSLwPdoNLItYLnFvGHg0Ca/hXhrkIDr >> BqnA0R5w2YHB+5p84gvj1NTRE0O2kXcUHkLDDBvnlLKUOUkoDyqr5tGAIwHhIwA7 >> hpko76CyGN84bS8Kma+1D6e8wg9zqfiS9mvvErJCUOwyU5e+XeoiCdyhwgDHJKlW >> T5UjMXdAHwyZly48J5l6jEJastHsL1wKAHeV/NlQ1gEx2CmnnJ0lBPDPqlT5Lxdb >> uQFzS/YhFzxWL2gApHKF8EdCz4jFbPUggYYPsVgfYkNNBISgcIiQaEIIPkri96vb >> V/xhnxLrFCO20NnGQ5PCTzCnZptyc3V+9WI542fnRGcS8SbF+N5BdLzoJBjtidrI >> a/Nps/KUhJ5kVzJ0o8H3 >> =oBhH >> -----END PGP SIGNATURE----- > > >
