The function accepts single argument which is a column name containing a PDL-query.
If the column is either empty or if it contains an incorrect PDL-query, the function returns an empty result.
Returned Value
Documents matching the query.
Examples
colquery(Column1) matches "delay in delivery of the goods" in the sentence "this might be a particular problem in cases of delay in delivery of the goods" if the Column1 value is a PDL-query phrase(3, delay, delivery).