[GitHub] [pinot] mneedham commented on a change in pull request #8304: Add commonly used math, string and date scalar functions in Pinot

[GitBox <gi...@apache.org>]

mneedham commented on a change in pull request #8304:
URL: https://github.com/apache/pinot/pull/8304#discussion_r828963670



##########
File path: pinot-common/src/main/java/org/apache/pinot/common/function/scalar/ArithmeticFunctions.java
##########
@@ -104,4 +111,30 @@ public static double ln(double a) {
   public static double sqrt(double a) {
     return Math.sqrt(a);
   }
+
+  @ScalarFunction
+  public static double sign(double a) {
+    return Math.signum(a);
+  }
+
+  @ScalarFunction
+  public static double pi() { return Math.PI; }
+
+  @ScalarFunction
+  public static double e() { return Math.E; }
+
+  @ScalarFunction
+  public static double power(double a, double b) {
+    return Math.pow(a, b);
+  }
+
+  @ScalarFunction
+  public static double log(double a) {
+    return Math.log10(a);
+  }

Review comment:
       @Jackie-Jiang if you have the same function as a scalar function and transform function, how does Pinot decide which one to use? Or would they need to have different names?




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