Apache
/
druid
mirror of https://github.com/apache/druid.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

document size attribute in thetaSketchSetOp post aggregator

This commit is contained in:
Himanshu Gupta 2016-01-07 23:59:03 -06:00
parent 15fc070232
commit 0d5f82aee7
1 changed files with 12 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
docs/content/development/datasketches-aggregators.md
View File

@ -37,12 +37,22 @@ Note that you can use `thetaSketch` aggregator on columns which were not ingeste
#### Sketch Estimator #### Sketch Estimator
```json ```json
{ "type" : "thetaSketchEstimate", "name": <output name>, "fieldName" : <the name field value of the thetaSketch aggregator>} {
"type" : "thetaSketchEstimate",
"name": <output name>,
"fieldName" : <the name field value of the thetaSketch aggregator>
}
``` ```
#### Sketch Operations #### Sketch Operations
```json ```json
{ "type" : "thetaSketchSetOp", "name": <output name>, "func": <UNION|INTERSECT|NOT>, "fields" : <the name field value of the thetaSketch aggregators>} {
"type" : "thetaSketchSetOp",
"name": <output name>,
"func": <UNION|INTERSECT|NOT>,
"fields" : <the name field value of the thetaSketch aggregators>,
"size": <16384 by default, must be max of size from sketches in fields input>
}
``` ```
### Examples ### Examples