danny0405 commented on a change in pull request #1397: [CALCITE-3115] Cannot
add JdbcRules which have different JdbcConvention to same VolcanoPlanner's
RuleSet.
URL: https://github.com/apache/calcite/pull/1397#discussion_r316480310
##########
File path: core/src/main/java/org/apache/calcite/adapter/jdbc/JdbcRules.java
##########
@@ -262,6 +263,17 @@ private JdbcRules() {
this(clazz, (Predicate<R>) predicate, in, out, relBuilderFactory,
description);
}
+
+ /**
+ * Creates name for child JdbcConverter rules in format:
+ * RuleName(out:CONVENTION_NAME)
+ *
+ * @param out output convention
+ * @return rule name
+ */
+ protected static String getRuleName(Class<?> clazz, JdbcConvention out) {
+ return String.format(Locale.ROOT, "%s(out:%s)", clazz.getSimpleName(),
out);
+ }
Review comment:
Just one question, can we make more effort to move this method to super
class ConverterRule ? It seems that this is a common pattern, it would be nice
if we can unify the naming rules so there is less change we encounter the
similar problem.
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