tanclary commented on code in PR #3233:
URL: https://github.com/apache/calcite/pull/3233#discussion_r1210376844
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core/src/main/java/org/apache/calcite/runtime/SqlFunctions.java:
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@@ -3869,6 +3869,17 @@ private static AtomicLong getAtomicLong(String key) {
return atomic;
}
+ /** Support the ARRAY_COMPACT function. */
+ public static List removeNulls(List list) {
+ List result = new ArrayList();
+ for (int i = 0; i < list.size(); i++) {
+ if (list.get(i) != null) {
+ result.add(list.get(i));
+ }
+ }
+ return result;
+ }
+
/** Support the ARRAY_DISTINCT function. */
Review Comment:
Is there a reason to iterate by index rather than something like `for(Object
obj : list)` ? Could help with readability a bit. Just an idea.
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