# \[Kibana canvas\] group multiple columns into one column with sql

**URL:** <https://discuss.elastic.co/t/kibana-canvas-group-multiple-columns-into-one-column-with-sql/194202>\
**Category:** Kibana\
**Created:** [August 7, 2019, 9:58am UTC](https://discuss.elastic.co/t/kibana-canvas-group-multiple-columns-into-one-column-with-sql/194202 "2019-08-07T09:58:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![simple\_commentateur](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/simple_commentateur/32/45428_2.png) [@simple\_commentateur](https://discuss.elastic.co/u/simple_commentateur)\
**Post date:** [August 7, 2019, 9:58am UTC](https://discuss.elastic.co/t/kibana-canvas-group-multiple-columns-into-one-column-with-sql/194202/1 "2019-08-07T09:58:01Z")

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Hi

This is the request i want to do :

```
select value from
(
    select sum(field1) as value from MyIndex
    union
    select sum(field2) as value from MyIndex
    union
    select sum(field3) as value from MyIndex
) test 

```

however, I have this issue :

![image](https://us1.discourse-cdn.com/elastic/original/3X/e/2/e2af5f64b369ca38cd969b10d445da4a583983a8.png)

the objectif ofthe request is to generate a Pie chart splited accroding the column generated.

Thanks !

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<div class="post-metadata">

**Author:** ![Andrei\_Stefan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrei_stefan/32/47533_2.png) [@Andrei\_Stefan](https://discuss.elastic.co/u/Andrei_Stefan)\
**Post date:** [August 8, 2019, 8:15am UTC](https://discuss.elastic.co/t/kibana-canvas-group-multiple-columns-into-one-column-with-sql/194202/2 "2019-08-08T08:15:21Z")

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`union` is not supported in Elasticsearch SQL. There's an issue already for that - [https://github.com/elastic/elasticsearch/issues/34414](https://github.com/elastic/elasticsearch/issues/34414) - but it's not on the roadmap.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 5, 2019, 8:15am UTC](https://discuss.elastic.co/t/kibana-canvas-group-multiple-columns-into-one-column-with-sql/194202/3 "2019-09-05T08:15:26Z")

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