caicancai commented on code in PR #3732:
URL: https://github.com/apache/calcite/pull/3732#discussion_r1538391118
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core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java:
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@@ -4127,14 +4130,14 @@ private static class LogicalNotImplementor extends
AbstractRexCallImplementor {
* <p>Handles all logarithm functions using log rules to determine the
* appropriate base (i.e. base e for LN).
*/
- private static class LogImplementor extends AbstractRexCallImplementor {
- LogImplementor() {
- super("log", NullPolicy.STRICT, true);
+ private static class LogImplementor extends MethodImplementor {
+ LogImplementor(Method method) {
+ super(method, NullPolicy.STRICT, true);
Review Comment:
@tanclary Hello
According to the extending AbstractRexCallImplementor at the beginning, we
need to identify different SQL dialects based on the "log" string, for example
```java
super("log", NullPolicy.STRICT, true);
```
But the problem is that we cannot identify all the dialects related to the
log function through a simple "log" string. We must use "logMySql" or The form
"logPostgres" identifies the corresponding SQL dialect, which means we need a
parameter.
Of course, it is also possible to pass a parameter through
AbstractRexCallImplementor, but I think BuiltInMethod.LOG.method already has
this ability. We only need to identify the methodName of the method without
passing other parameters. I think this is A simpler and more efficient method.
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