Using templates for operators provided in TPT - response (13) by TonyL

The "IGNORE DUPLICATE INSERT ROWS" DML option is in the wrong place.
The "IGNORE DUPLICATE INSERT ROWS" DML option is after the DML expression.
For example:
APPLY
CASE
WHEN <search condition>
THEN <DML expression>
IGNORE DUPLICATE INSERT ROWS
WHEN <search condition>
THEN <DML expression>
IGNORE DUPLICATE INSERT ROWS
END