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31 lines
1002 B
Markdown
31 lines
1002 B
Markdown
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---
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layout: doc_page
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---
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# Sort groupBy Query Results
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The limitSpec field provides the functionality to sort and limit the set of results from a groupBy query. If you group by a single dimension and are ordering by a single metric, we highly recommend using [TopN Queries](../querying/topnquery.html) instead. The performance will be substantially better. Available options are:
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### DefaultLimitSpec
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The default limit spec takes a limit and the list of columns to do an orderBy operation over. The grammar is:
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```json
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{
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"type" : "default",
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"limit" : <integer_value>,
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"columns" : [list of OrderByColumnSpec],
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}
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```
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#### OrderByColumnSpec
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OrderByColumnSpecs indicate how to do order by operations. Each order-by condition can be a `jsonString` or a map of the following form:
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```json
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{
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"dimension" : "<Any dimension or metric name>",
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"direction" : <"ascending"|"descending">
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}
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```
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If only the dimension is provided (as a JSON string), the default order-by is ascending.
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