The advanced search syntax can be used to search for documents whose text has been indexed or those that do not contain indexed text. The syntax for this type of search is shown below.
{LF:Indexed=Y/N}
The term Indexed specifies whether a document should have indexed text before it can be considered a valid search result. The following table explains the acceptable values for this search syntax.
| Value | Description |
| Y | All documents that have indexed text will be considered valid search results. |
| N | All documents that do not have indexed text will be considered valid search results. |
The first sample search will find all documents that have indexed text, while the second one will only find documents that do not have indexed text.
{LF:Indexed=Y}
{LF:Indexed=N}