MarkLogic 9 Product Documentationop:as
op:as( $column as item(), $expression as item()* ) as map:map
Summary
This function defines a column by assigning the value of an expression over the rows in the row set.
| Parameters | |
|---|---|
| $column | The name of the column to be defined. This can be either a string or the return value from op:col, op:view-col, or op:schema-col. |
| $expression | The expression used to define the value the column. |
Example
xquery version "1.0-ml";
import module namespace op="http://marklogic.com/optic"
at "/MarkLogic/optic.xqy";
op:from-view("main", "employees")
=> op:select(("EmployeeID", op:as("node", op:xml-comment(op:col("Position")))))
=> op:order-by("EmployeeID")
=> op:result()