Trino Encountering the UNSUPPORTED_PARTITIONING error when attempting to execute a query.
The partitioning scheme used in the query is not supported by Trino.
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What is
Trino Encountering the UNSUPPORTED_PARTITIONING error when attempting to execute a query.
?
Understanding Trino
Trino is a distributed SQL query engine designed to query large datasets distributed over one or more heterogeneous data sources. It is particularly useful for running interactive analytic queries against data sources of all sizes, from gigabytes to petabytes. Trino supports a wide range of data sources, including HDFS, S3, and various SQL databases, making it a versatile tool for data analysis.
Identifying the Symptom
When working with Trino, you might encounter an error message stating UNSUPPORTED_PARTITIONING. This error typically arises when executing a query that involves a partitioning scheme not recognized by Trino. The error message may look something like this:
Query failed: UNSUPPORTED_PARTITIONING
Exploring the Issue
The UNSUPPORTED_PARTITIONING error indicates that the partitioning scheme specified in your query is not compatible with Trino's capabilities. Trino supports a variety of partitioning schemes, but not all schemes used in data sources are supported. This can occur when querying external systems or when the data source has been configured with a custom partitioning strategy.
Common Causes
- Using a custom partitioning scheme not recognized by Trino.
- Querying a data source with a partitioning strategy that Trino does not support.
Steps to Resolve the Issue
To resolve the UNSUPPORTED_PARTITIONING error, follow these steps:
Step 1: Verify Partitioning Scheme
Check the partitioning scheme used in your data source. Ensure that it aligns with one of the partitioning schemes supported by Trino. You can find more information about supported partitioning schemes in the Trino Documentation.
Step 2: Modify the Query
If the partitioning scheme is unsupported, consider modifying your query to use a supported scheme. This might involve changing the way data is partitioned or restructuring the query to avoid reliance on unsupported partitioning.
Step 3: Reconfigure Data Source
If possible, reconfigure your data source to use a supported partitioning scheme. This might involve altering the data storage configuration or using a different data source that is compatible with Trino.
Step 4: Consult Trino Community
If the issue persists, consider reaching out to the Trino Community for assistance. The community can provide insights and potential workarounds for dealing with unsupported partitioning schemes.
Conclusion
By understanding the limitations of Trino's partitioning support and following the steps outlined above, you can effectively address the UNSUPPORTED_PARTITIONING error. Ensuring compatibility between your data source's partitioning scheme and Trino's capabilities is key to successful query execution.
Attached error:
Trino Encountering the UNSUPPORTED_PARTITIONING error when attempting to execute a query.
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Trino
80+ monitoring tool integrations
Long term memory about your stack
Locally run Mac App available
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Oops! Something went wrong while submitting the form.
Time to stop copy pasting your errors onto Google!
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