# Ist there a way to use aggregation function in an array column?

**URL:** <https://community.cratedb.com/t/ist-there-a-way-to-use-aggregation-function-in-an-array-column/46>\
**Category:** SQL\
**Created:** [October 22, 2018, 9:54am UTC](https://community.cratedb.com/t/ist-there-a-way-to-use-aggregation-function-in-an-array-column/46 "2018-10-22T09:54:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![roman](https://sea2.discourse-cdn.com/flex020/user_avatar/community.cratedb.com/roman/32/36_2.png) [@roman](https://community.cratedb.com/u/roman)\
**Post date:** [October 22, 2018, 9:54am UTC](https://community.cratedb.com/t/ist-there-a-way-to-use-aggregation-function-in-an-array-column/46/1 "2018-10-22T09:54:09Z")

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Ist there a way to use aggregation function in an array column?

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<div class="post-metadata">

**Author:** ![roman](https://sea2.discourse-cdn.com/flex020/user_avatar/community.cratedb.com/roman/32/36_2.png) [@roman](https://community.cratedb.com/u/roman)\
**Post date:** [October 22, 2018, 9:54am UTC](https://community.cratedb.com/t/ist-there-a-way-to-use-aggregation-function-in-an-array-column/46/2 "2018-10-22T09:54:39Z")

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Hi there - Could you take a look at this and see if this helps you?

If you’ve any further queries, please do not hesitate to get in touch! :leichtes\_lächeln:

[https://crate.io/docs/crate/reference/en/latest/general/builtins/aggregation.html](https://crate.io/docs/crate/reference/en/latest/general/builtins/aggregation.html)