zeroflag commented on a change in pull request #1542:
URL: https://github.com/apache/hive/pull/1542#discussion_r512060372



##########
File path: 
hplsql/src/main/java/org/apache/hive/hplsql/functions/FunctionDatetime.java
##########
@@ -36,20 +36,20 @@ public FunctionDatetime(Exec e) {
    * Register functions
    */
   @Override
-  public void register(Function f) {
-    f.map.put("DATE", new FuncCommand() { public void 
run(HplsqlParser.Expr_func_paramsContext ctx) { date(ctx); }});
-    f.map.put("FROM_UNIXTIME", new FuncCommand() { public void 
run(HplsqlParser.Expr_func_paramsContext ctx) { fromUnixtime(ctx); }});
-    f.map.put("NOW", new FuncCommand() { public void 
run(HplsqlParser.Expr_func_paramsContext ctx) { now(ctx); }});
-    f.map.put("TIMESTAMP_ISO", new FuncCommand() { public void 
run(HplsqlParser.Expr_func_paramsContext ctx) { timestampIso(ctx); }});
-    f.map.put("TO_TIMESTAMP", new FuncCommand() { public void 
run(HplsqlParser.Expr_func_paramsContext ctx) { toTimestamp(ctx); }});
-    f.map.put("UNIX_TIMESTAMP", new FuncCommand() { public void 
run(HplsqlParser.Expr_func_paramsContext ctx) { unixTimestamp(ctx); }});
+  public void register(BuiltinFunctions f) {
+    f.map.put("DATE", this::date);

Review comment:
       This is a general issue, many things are package private. We can 
refactor that little by little.
   
   
   .




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