On Tuesday, June 21, 2016 at 2:16:19 AM UTC+3, Sean Beckett wrote:
> Use GROUP BY * to preserve the tags when downsampling.
> 
> 
> On Mon, Jun 20, 2016 at 9:39 AM,  <[email protected]> wrote:
> 
> As mentioned in Downsampling and retention documentation.
> 
> 
> "InfluxDB can handle hundreds of thousands of data points per second. Working 
> with that much data over a long period of time can create storage concerns. A 
> natural solution is to downsample the data; keep the high precision raw data 
> for only a limited time, and store the lower precision, summarized data for 
> much longer or forever."
> 
> 
> 
> My goal is to have 2 databases on my influxdb:
> first one is named:"foo", it is a db with retention policy of 4 weeksthe 
> second one is named: "downsampled_foo", it is a db with downsampled points 
> with larger retention policy (12 weeks).
> I want the downsampled db to have a 5 minuets "group by" aggregation (avg for 
> example) for numeric fields, and will keep original tag values.
> Meaning, if in original db i have a measurement like:
> numeric field1numeric field2numeric 
> field3tag1tag2time500203orangesqure146643663450102orangesqure146643664455113orangesqure14664546345301yellowcircle1466454635I
>  would like the downsampled measurement to look like:
> numeric field1numeric field2numeric 
> field3tag1tag2time275152.5orangesqure146643663955113orangesqure14664546345301yellowcircle1466454635
> 
> how can i create a single continuous query that keeps the original tags while 
> downsampling?
> 
> 
> 
> 
> thanks :)
> 
> 
> 
> 
> -- 
> 
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> 
> 
> -- 
> 
> 
> Sean Beckett
> Director of Support and Professional Services
> InfluxDB

so i have to aggregate each field separately, or is there a way to select only 
one value from the time period?

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