The Textkernel Search & Match Engine supports adding tags to a document that can be used for filtering the result set. User-Defined Tags are implemented by encoding values as strings and passing those into the index document api call. The recommended string format for a user-defined tag is:
Field + Value:
- Field is some string to identify the field or property. For example, "Status".
- Value is the value of the field encoded as a string. For example, "Active" or "123".
- The entire tag should be alphanumeric without any whitespace, symbols or punctuation (i.e. "abc123" instead of "abc-123") so that there will not be any issues with how these tags are tokenized by the indexing engine.
Combining these strings together results in user-defined tags like:
Once documents with those tags are indexes you can filter the data set by the tags by setting the