# Reading from an alias which has two indexes **URL:** \ **Category:** Elasticsearch\ **Created:** [March 30, 2015, 5:49pm UTC](https://discuss.elastic.co/t/reading-from-an-alias-which-has-two-indexes/22987 "2015-03-30T17:49:32Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Kumar\_S](https://avatars.discourse-cdn.com/v4/letter/k/e47774/32.png) [@Kumar\_S](https://discuss.elastic.co/u/Kumar_S)\ **Post date:** [March 30, 2015, 5:49pm UTC](https://discuss.elastic.co/t/reading-from-an-alias-which-has-two-indexes/22987/1 "2015-03-30T17:49:32Z")
Hi, If i have two indexes under an alias say "Old Index" and "New Index". the old index contains a doc identified by #doc1, version 1 and the i start populating "new index" (and stop writing to old index). I then index a updated version of #doc 1 to "New Index". Now "New Index" contains #doc1, version 2. Now, when i issue a read query to the alias (which ahs Old & New Index under it), which version of the doc would it return, #doc 1, version 2? Thanks for your prompt response. Kumar Subramanian. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a2fecda7-2345-4a92-a94d-a68982bf4bd7%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a2fecda7-2345-4a92-a94d-a68982bf4bd7%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [April 1, 2015, 9:35pm UTC](https://discuss.elastic.co/t/reading-from-an-alias-which-has-two-indexes/22987/2 "2015-04-01T21:35:06Z")
It'd probably return both, depends on what your query is. On 31 March 2015 at 04:49, Kumar S [krskumar108@gmail.com](mailto:krskumar108@gmail.com) wrote: > Hi, > If i have two indexes under an alias say "Old Index" and "New Index". the > old index contains a doc identified by #doc1, version 1 and the i start > populating "new index" (and stop writing to old index). I then index a > updated version of #doc 1 to "New Index". Now "New Index" contains #doc1, > version 2. > > Now, when i issue a read query to the alias (which ahs Old & New Index > under it), which version of the doc would it return, #doc 1, version 2? > > Thanks for your prompt response. > > Kumar Subramanian. > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/a2fecda7-2345-4a92-a94d-a68982bf4bd7%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a2fecda7-2345-4a92-a94d-a68982bf4bd7%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/a2fecda7-2345-4a92-a94d-a68982bf4bd7%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/a2fecda7-2345-4a92-a94d-a68982bf4bd7%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8OO-zV0G6nw%2BXf%2Bd171CYf2pwWF4oUow%2BFrjYta\_5HMA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X8OO-zV0G6nw%2BXf%2Bd171CYf2pwWF4oUow%2BFrjYta_5HMA%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:22am UTC](https://discuss.elastic.co/t/reading-from-an-alias-which-has-two-indexes/22987/3 "2017-07-06T00:22:13Z")