I have a PromQL query max_over_time(some_metric_max[1h]) but instead of "1h" I would like to use the selected time range in Grafana. I can't find any variable for that (looking for something like $__interval, but for the selected range)...
Use:
max_over_time(some_metric_max[$__range])
See more details at Grafana documentation here.
Related
I have a sails api with the created date formatted like
"createdAt": "2018-11-01T11:49:53.700Z",
i can get the contains filtering on a field working e.g
api2/items?status=IN_PROGRESS
but can't get the date range working, have tried the following
api2/items?createdAt={'>=":2018-11-01T11:49:53.700Z, '<=":2018-11-01T11:49:53.700Z}
/api2/items?where={createdAt: { '>=': 2018-11-01T11:49:53.700Z, '<=': 2018-11-01T11:49:53.700Z }}
any ideas?
I don't believe waterline supports this type of query on a datetime field. I would urge you to instead store these as a number (the unix time), which you will more easily be able to do such queries. When you want to format these items for display, you can use moment.js to help out.
I am looking for something like FOUND_ROWS() in mysql select query in algolia results as I need to keep a track of how many total results to expect. Is there someway to get this in Algolia?
The proper way to obtain the number of results is to access the nbHits value which is available in the JSON response of every search call.
I know that the ATTR function is used for aggregation, but can someone explain it in simple terms?
In the most simplest of terms, ATTR returns a value if it is unique, otherwise it returns "*". I think you'll find this link helpful with examples.
https://www.interworks.com/blog/tcostello/2014/05/15/attr-tableaus-attribute-function-explained
You cannot mix aggregate and non aggregate comparisons in tableau, you have to use ATTR, for e.g. if ATTR(segment) ='Corporate' then sum(sales)
ATTR is like using an already aggregated field for comparison with another aggregated field. Measures are taken as aggregated fields while dimension's aren't. If you have created a field which is already aggregated and still you want to use this field as measure it will be shown as ATTR as it cannot be further aggregated but is behaving like it has.
I would like to store and query documents that contain a from-to date range, where the range represents an interval when the document has been valid.
Typical use cases in lucene/solr documentation address the opposite problem: Querying for documents that contain a single timestamp and this timestamp is contained in a date range provided as query parameter. (createdate:[1976-03-06T23:59:59.999Z TO *])
I want to use the edismax parser.
I have found the ms() function, which seems to me to be designed for boosting score only, not to eliminate non-matching results entirely.
I have found the article Spatial Search Tricks for People Who Don't Have Spatial Data, where the problem described by me is said to be Easy... (Find People Alive On May 25, 1977).
Is there any simpler way to express something like
date_from_query:[valid_from_field TO valid_to_field] than using the spacial approach?
The most direct approach is to create the bounds yourself:
valid_from_field:[* TO date_from_query] AND valid_to_field:[date_from_query TO *]
.. which would give you documents where the valid_from_field is earlier than the date you're querying, and the valid_to_field is later than the date you're querying, in effect, extracting the interval contained between valid_from_field and valid_to_field. This assumes that neither field is multi valued.
I'd probably add it as a filter query, since you don't need any scoring from it, and you probably want to allow other search queries at the same time.
Im using sphinx for document search. Each document has list of integer parameters, like "length", "publication date (unix)", popularity, ... .
The search process itself works fine. But is there a way to get a maximum and minimum fields values for a specified search query?
The main purpose is to generate a search form which will contain filter fields so user can select document`s length.
Or maybe there is another way to solve this problem?
It is possible if length, date etc are defined as attributes.
http://www.sphinxsearch.com/docs/current.html#attributes
Attributes are additional values
associated with each document that can
be used to perform additional
filtering and sorting during search.
Try GroupBy function by 'length' and select mix(length), max(lenght).
In SphinxQl it is like:
select mix(length), max(lenght) from index_123 group by length
The same for other attributes.