On 5/15/15, Zsb?n Ambrus <ambrus at math.bme.hu> wrote: > Dear SQLite list, > > A few of the built-in SQL functions of SQLite has a result that > depends on the collation sequence of the arguments, and compare text > values using these collation functions. These functions are "min" and > "max" (both aggregate and scalar versions) and "nullif". > > Is there a way to define new SQL functions that behave in such a way? >
No there is not. The APIs used to implement those built-in functions are not exposed to the application-defined function interface. Which is good, because they have changed once or twice for performance reasons and had they been exposed, those changes would have caused problems. -- D. Richard Hipp drh at sqlite.org
