> For the complete documentation index, see [llms.txt](https://docs.quilt.bio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.quilt.bio/quilt-python-sdk/advanced/s3-select.md).

# S3 Select

> NOTE: As of July 25, 2024, Amazon S3 Select is [no longer available](https://docs.aws.amazon.com/AmazonS3/latest/userguide/WhatsNew.html) to new customers. The following documentation only applies to accounts that were created before that date.

[S3 Select](https://aws.amazon.com/blogs/aws/s3-glacier-select/) is an S3 feature that allows you to operate on JSON, CSV, and Parquet files in a row-based manner using SQL syntax. QUILT features experimental support for S3 Select queries as part of the `Bucket` interface:

```python
import quilt3
b = quilt3.Bucket("s3://alpha-quilt-example")
b.select("foo/bar.csv", "SELECT * FROM S3Object LIMIT 5")
# <pandas DataFrame object at ...>
```


---

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