Specifies the XPath expression or hard-coded value that contains a column value. Any XPath expression must end with a value accessor such as @att or text(). If the XPath expression fails to return any data because a node or attribute does not exist, the column value will be deemed as null. To differentiate between null and missing values (for updates) the isnull and ismissing properties should be set. The value returned is used for delete before values, and update/insert after values.

colrule.value={xpath_expression|"value"}

For example:

statkeycolrule.value=./text()