Presto MISSING_FUNCTION error encountered in Presto query execution.

A required function is missing from the query.

Understanding Presto: A Distributed SQL Query Engine

Presto is an open-source distributed SQL query engine designed for running interactive analytic queries against data sources of all sizes. It is optimized for low latency and high throughput, making it ideal for querying large datasets. Presto supports a wide range of data sources, including Hadoop, AWS S3, and traditional relational databases.

Identifying the Symptom: MISSING_FUNCTION Error

When executing a query in Presto, you might encounter an error message indicating a MISSING_FUNCTION. This error typically occurs when the query references a function that is not recognized or available in the current Presto environment.

Exploring the Issue: What Causes MISSING_FUNCTION?

The MISSING_FUNCTION error suggests that the query is attempting to use a function that Presto cannot find. This could be due to a typo in the function name, a missing plugin, or a function that is not supported in the current version of Presto. It's crucial to ensure that all functions used in the query are correctly spelled and available in the environment.

Common Causes of MISSING_FUNCTION

  • Typographical errors in the function name.
  • Using a function that requires a specific plugin or connector that is not installed.
  • Referencing a function that is not supported in the current version of Presto.

Steps to Fix the MISSING_FUNCTION Issue

Step 1: Verify Function Name

Double-check the function name in your query for any typographical errors. Ensure that the function name is spelled correctly and matches the expected syntax.

Step 2: Check Presto Documentation

Consult the Presto Function Documentation to confirm that the function is supported in your version of Presto. This documentation provides a comprehensive list of available functions and their usage.

Step 3: Ensure Required Plugins Are Installed

Some functions in Presto require specific plugins or connectors. Verify that all necessary plugins are installed and configured correctly. You can check the Presto Deployment Guide for information on installing and configuring plugins.

Step 4: Update Presto Version

If the function is not available in your current version of Presto, consider upgrading to a newer version that supports the function. Follow the Presto Upgrade Instructions to update your installation.

Conclusion

By following these steps, you can resolve the MISSING_FUNCTION error in Presto and ensure that your queries execute successfully. Always keep your Presto environment updated and consult the official documentation for the latest features and functions.

Master

Presto

in Minutes — Grab the Ultimate Cheatsheet

(Perfect for DevOps & SREs)

Most-used commands
Real-world configs/examples
Handy troubleshooting shortcuts
Your email is safe with us. No spam, ever.

Thankyou for your submission

We have sent the cheatsheet on your email!
Oops! Something went wrong while submitting the form.

Presto

Cheatsheet

(Perfect for DevOps & SREs)

Most-used commands
Your email is safe with us. No spam, ever.

Thankyou for your submission

We have sent the cheatsheet on your email!
Oops! Something went wrong while submitting the form.

MORE ISSUES

Made with ❤️ in Bangalore & San Francisco 🏢

Doctor Droid