Hey Guys i'm trying to get a Point within a specific location from my CouchDB Database. I have absolutely no Idea how to build the query and the view.
In my Document, there is a value latitude and a value longitude.
I am building a quadratic bound latMin, longMin, latMax, longMax.
The view should return all documents where:
latitude is between latMin and latMax
and
longitude is between longMin and longMax
Thank you in advance
Edit: For this Project i am forced to use IrisCouch where i'm not able to install an extension. I have to solve it with key, startkey and endkey.
You may use the extension "geocouch" which is specialized to do spatial queries.
Related
I am periodically training an anomaly detection model and I am saving it in elasticsearch index of the form 'anomaly_detection_model-' + date_model_trained. This means that I am ending up with indices of the form: anomaly_detection_model-31.08.2022, anomaly_detection_model-29.08.2022, anomaly_detection_model-27.08.2022, etc. I need to be able to get access to the latest model at real-time in order to make the predictions without knowing what is the date that this model was trained. Do you have any ideas of how this could be possible?
if you need to access to the last created index try this:
GET /_cat/indices?pretty&s=creation.date:desc
Is there a way to dynamically append a driving distance of the CONSUMER in ES?
I am trying to create an app and sort PROVIDERS by driving distance.
One thing I could think of is get all the PROVIDERS within a range then put them in an array. Iterate to add driving distance then sort array. But this is not efficient.
Any suggestions?
thank you!
You can use runtime fields to achieve what you want, A runtime field is a field that is evaluated at query time. Runtime fields enable you to:
Add fields to existing documents without reindexing your data Start
working with your data without understanding how it’s structured
Override the value returned from an indexed field at query time
Define fields for a specific use without modifying the underlying
schema
For more information you can check Elasticsearch blog post here, and for runtime fields here.
I want to make dependent search like when user type country and select country then on next dropdown/text search result would be from that particular Countries state, after selecting state on next text search would only based on that selected state. can anyone help to achieve this kind thing via elastic search.
i am new to elastic Search and i had basic idea of it, but didn't get idea how to do this kind of stuff where i need to search from child and feel data like map
Fist, it is important to understand how Elasticsearch store its data. You can find this kind of info here: https://www.elastic.co/guide/en/elasticsearch/reference/master/documents-indices.html
So, basically what you need is build a query with two must terms.
One for the object type (Country, State, etc).
Other for the name ("Los Angeles", "Massachussets", etc). If you want a autocomplete feature you could add a wildcard query in your list. https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html
Obs: When you store your State object do not forget to store the Country name together. Since Elasticsearch is non relational you have to have Country name indexed in the State document.
Hope that it helps
ONE elastic index that stores visitor data for restaurants in chennai and in New york.
The query must return data for 8-9am in chennai and 8-9am in newyork. Since the data is in one index, is there a way to ignore the timeszone in the timestamp and query elastic data?
or is it possible to solve this problem without multiple query?
The approach I am taking is to convert and store local date time (without timezone info) into a long integer yymmddhhmmss and query it. This will support lte and gte queries too.
it's not possible, no, because they are two totally different timezones/timestamps
I'm learning elastic search,
I wanted to ask if there is any way to get most searched results first,
like:
by altering the documents and updating a value of em with scores,
using some kind of formula or something else
thanks community :)
You don't have that out of the box but you can indeed modify a document and increase the number of views when a user clicks on a result then use that field as part of the score (function_score might help for this).