About the SYS Field Name Prefix

This is for:

Developer System Administrator

While inspecting items with the Content Browser, you might have noticed some field names with the prefix sys. These fields may appear redundant, since their value is identical to the value of fields with the same name, minus the sys prefix.

Examples

  • date and sysdate

  • filetype and sysfiletype

  • size and syssize

These field pairs coexist for compatibility reasons. In previous versions of Coveo, the names of the system fields were prefixed with sys. This prefix was abandoned in the cloud version of Coveo. However, for backward compatibility reasons the Coveo REST Search API still includes the older field names.

Important

In a future version of the Search API, fields prefixed with sys won’t be available anymore. To future-proof your Coveo-powered search pages, ensure they no longer use fields with the sys prefix.