Jackie-Jiang commented on a change in pull request #7877:
URL: https://github.com/apache/pinot/pull/7877#discussion_r765372817
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File path:
pinot-common/src/main/java/org/apache/pinot/common/function/FunctionRegistry.java
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@@ -106,14 +107,18 @@ public static boolean containsFunction(String
functionName) {
}
/**
- * Returns the {@link FunctionInfo} associated with the given function name
and number of parameters, or {@code null}
- * if there is no matching method. This method should be called after the
FunctionRegistry is initialized and all
- * methods are already registered.
+ * Returns a pair <{@code true}, {@link FunctionInfo}> associated with the
given function name and number of
+ * parameters if it exists, <{@code true}, {@code null}> if method exists
but number of parameters do not match,
+ * else if there is no matching method <{@code false}, {@code null}>. This
method should be called after the
+ * FunctionRegistry is initialized and all methods are already registered.
*/
@Nullable
- public static FunctionInfo getFunctionInfo(String functionName, int
numParameters) {
+ public static ImmutablePair<Boolean, FunctionInfo> getFunctionInfo(String
functionName, int numParameters) {
Review comment:
I don't think the overhead is significant, but it is good to eliminate
it if possible. See the suggested change
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