Trino is a powerful, open-source distributed SQL query engine designed for running interactive analytic queries against data sources of all sizes. It is particularly useful for querying large datasets across multiple data sources, providing a unified platform for data analysis. Trino supports a wide range of data formats and connectors, making it a versatile tool for data engineers and analysts.
When working with Trino, you might encounter the INVALID_DATE_FORMAT error. This error typically arises when a query attempts to process a date value that does not conform to a recognized format. The error message might look something like this:
Query failed: INVALID_DATE_FORMAT: The date format is invalid or not recognized.
This error prevents the query from executing successfully, as Trino cannot interpret the provided date value.
The INVALID_DATE_FORMAT error occurs when the date string in your query does not match any of the formats that Trino can parse. Trino expects dates to be in a specific format, such as YYYY-MM-DD for date values or YYYY-MM-DD HH:MM:SS for timestamp values. If the date string deviates from these formats, Trino will not be able to process it, leading to this error.
To resolve the INVALID_DATE_FORMAT error, follow these steps:
Ensure that the date strings in your query are in a format recognized by Trino. For example, use YYYY-MM-DD for dates and YYYY-MM-DD HH:MM:SS for timestamps. You can refer to the Trino Date and Time Functions documentation for more details on supported formats.
date_parse FunctionIf your date strings are in a non-standard format, you can use the date_parse function to convert them into a recognized format. For example:
SELECT date_parse('12/31/2023', '%m/%d/%Y');
This function will parse the date string according to the specified format and convert it into a Trino-compatible date.
Ensure there are no typographical errors in your date strings. Even a small mistake, such as an incorrect separator or an extra space, can cause the INVALID_DATE_FORMAT error.
Once you have verified and corrected the date formats, update your query accordingly. Run the query again to ensure that the error is resolved.
By ensuring that your date strings are in a format recognized by Trino, you can avoid the INVALID_DATE_FORMAT error and ensure smooth query execution. For more information on handling dates and times in Trino, refer to the official documentation.
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