gr4ve commented on a change in pull request #1405: [CALCITE-2772] Support
varargs UDF for scalar function
URL: https://github.com/apache/calcite/pull/1405#discussion_r366126451
##########
File path: core/src/test/java/org/apache/calcite/util/Smalls.java
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@@ -368,8 +369,26 @@ public String toString() {
}
}
+
+ /** Example of a UDF with named parameters. */
+ public static class VarArgsFunction {
+
+ public static final AtomicInteger INSTANCE_COUNT = new AtomicInteger(0);
+
+ // Note: Not marked @Deterministic
+ public VarArgsFunction() {
+ INSTANCE_COUNT.incrementAndGet();
+ }
+
+ public int eval(@Parameter(name = "x")int x, @Parameter(name = "y") int...
numerics) {
+ return IntStream.concat(IntStream.of(x), IntStream.of(numerics)).sum();
+ }
+ }
+
+
/** Example of a UDF with a non-static {@code eval} method,
* and named parameters. */
+
Review comment:
done
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