# Saving "newest" document
**URL:** https://discuss.elastic.co/t/saving-newest-document/13055
**Category:** Elasticsearch
**Created:** [August 3, 2013, 6:04pm UTC](https://discuss.elastic.co/t/saving-newest-document/13055 "2013-08-03T18:04:50Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Victor\_D](https://discuss.elastic.co/u/Victor_D)
#### Post date: [August 3, 2013, 6:04pm UTC](https://discuss.elastic.co/t/saving-newest-document/13055/1 "2013-08-03T18:04:50Z")
If I have a document, that's being saved with a key, and a document already
exists with that same key, is there any way to only save "newest" document?
For example, if I have a key abc, and a date 2013-08-10 and a document
comes in with key abc and an older date, any way to let es know and ignore
the update, since the document is older? And if a newer document comes in,
then overwrite abc with newer document. I am concerned that if I pull the
value to compare in the code, then in a multi-threaded environment, I could
still lose the latest doc. Not to say that same can't happen within ES, but
just curious if I set \_version field or something to time stamp, would that
do anything or any way to force saving only latest?
Thanks
Victor
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [August 3, 2013, 6:22pm UTC](https://discuss.elastic.co/t/saving-newest-document/13055/2 "2013-08-03T18:22:06Z")
See versioning in [http://www.elasticsearch.org/guide/reference/api/index\_/](http://www.elasticsearch.org/guide/reference/api/index_/)
I think that setting version\_type to external could help here. Send date in ms as version number.
You should get failures in case of indexing with an older value.
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David 😉
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs
Le 3 août 2013 à 20:04, Victor D [vmv890@gmail.com](mailto:vmv890@gmail.com) a écrit :
If I have a document, that's being saved with a key, and a document already exists with that same key, is there any way to only save "newest" document?
For example, if I have a key abc, and a date 2013-08-10 and a document comes in with key abc and an older date, any way to let es know and ignore the update, since the document is older? And if a newer document comes in, then overwrite abc with newer document. I am concerned that if I pull the value to compare in the code, then in a multi-threaded environment, I could still lose the latest doc. Not to say that same can't happen within ES, but just curious if I set \_version field or something to time stamp, would that do anything or any way to force saving only latest?
## Thanks Victor
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 2:23am UTC](https://discuss.elastic.co/t/saving-newest-document/13055/3 "2017-07-06T02:23:07Z")