Elastic Search : Mapping date format and sort by date
While working on the job board for Socketloop.com recently, I need to sort the Elastic Search result based on the date when the entry is created.
Before the sorting part can happen, first the mappings need to be configured with the type "date" with a proper formatting.
"postDate": {"type": "date", "format" : "yyyy-MM-dd HH:mm:ss"}
and below is a snippet from the Elastic Search mapping.
"mappings" : {
"people": {
"properties": {
"username": {"type": "string"},
"postDate": {"type": "date", "format" : "yyyy-MM-dd HH:mm:ss"}
}
}
and add the 'sort' section in my Elastic Search query
$searchquery = '{
"size" : 9999,
"sort" : [
{ "postDate" : {"order" : "desc"}}
]
}';
and the result be seen at https://profession.socketloop.com/people (still pretty new and not many records to sort for the moment - March 2015)
Reference :
http://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-date-format.html
See also : PHP : How to parse ElasticSearch JSON ?
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+9.1k Golang : Changing a RGBA image number of channels with OpenCV
+20.7k Golang : Create and resolve(read) symbolic links
+5.2k PHP : Fix Call to undefined function curl_init() error
+18.2k Golang : Generate thumbnails from images
+5.1k Python : Delay with time.sleep() function example
+17.1k Golang : [json: cannot unmarshal object into Go value of type]
+7.2k Golang : Set horizontal, vertical scroll bars policies and disable interaction on Qt image
+10k Fix ERROR 1045 (28000): Access denied for user 'root'@'ip-address' (using password: YES)
+17.1k Golang : Defer function inside init()
+6.5k Golang : Pat multiplexer routing example