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Hai Dang 2016-10-12 20:19:37 -07:00
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@ -1234,8 +1234,6 @@ Redshift
- A compound sort key is made up of all columns listed in the sort key definition. It is most useful when you have queries with operations using prefix of the sortkey.
- An interleaved sort key on the other hand gives equal weight to each column or a subset of columns in the sort key. So if you don't know ahead of time which column you want to choose for sorting and filtering, this is a much better choice than compound key.[Here](https://aws.amazon.com/blogs/aws/quickly-filter-data-in-amazon-redshift-using-interleaved-sorting/) is an example using interleaved sort key.
https://aws.amazon.com/blogs/aws/quickly-filter-data-in-amazon-redshift-using-interleaved-sorting/
### Redshift Gotchas and Limitations
- ❗⏱While Redshift can handle heavy queries well, its does not scale horizontally, i.e. does not handle multiple queries in parallel. Therefore, if you expect a high parallel load, consider replicating or (if possible) sharding your data across multiple clusters.