Error Parsing Date/Time

When building visualizations, you might encounter an error when trying to perform time operations on a date field:

The query generated by this panel is attempting to do time operations on a date field. Please ensure that the field you are operating on has a time part before doing hour, minute, or second operations.

This error occurs when you attempt to group a DATE field by a time component such as hour, minute, or seconds. On some databases, these operations can only be performed on fields with a DATETIME or TIMESTAMP type.

How do I resolve this?

Option 1: Don’t Use Time-Based Grouping on This Field

The easiest approach is to avoid time-based grouping on a DATE field. Since DATE fields do not contain time information, grouping by hour, minute, or second will not provide meaningful results.

Option 2: Convert the Field Type

Alternatively, you can convert your field to the necessary DATETIME or TIMESTAMP type in your database or data warehouse. This enables time-based operations such as grouping by hour, minute, or second.

For example, in SQL:

ALTER TABLE your_table
MODIFY COLUMN your_date_column DATETIME;

Check your database documentation for the correct syntax to convert column types.