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9 changes: 9 additions & 0 deletions modules/querying/pages/data-types.adoc
Original file line number Diff line number Diff line change
Expand Up @@ -620,6 +620,15 @@ set s3_region = <REGION>;

These session parameters should be set within the GSQL Editor to enable read/write access to the specified S3 bucket for query results. Replace `<AWS_KEY_ID>` and `<AWS_ACCESS_KEY>` with your actual AWS credentials, and `<REGION>` with your S3 bucket's region (for example, `us-west-2`). If you don't set `s3_region`, it defaults to `us-east-1`.

In 4.3, you can also authenticate using AWS role assumption. Set the `s3_assume_role` session parameter to the role ARN:

[source, gsql]
----
set s3_assume_role="<RoleARN>";
----
Both methods provide identical functionality.


==== Output
Since S3 is a shared storage system, multiple nodes in a cluster can upload to the same bucket.
To avoid conflicts and ensure unique output files, the S3 path may include a suffix such as:
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