Update func name

Author: krooswu

core/src/main/java/org/apache/calcite/rel/rel2sql/RelToSqlConverter.java

@@ -243,7 +243,7 @@ protected Result wrapNestedJoin(Result input, RelNode inputRel, String outerAlia
     // Extract the underlying SqlSelect from the input Result.
     // We manipulate the Select node directly to avoid redundant nesting
     // often introduced by Result.asSelect().
-    final SqlSelect innerSelect = (SqlSelect) input.asSelect();
+    final SqlSelect innerSelect = input.asSelect();
     final SqlNodeList originalSelectList = innerSelect.getSelectList();
     final List<String> fieldNames = inputRel.getRowType().getFieldNames();
 
@@ -302,8 +302,8 @@ public Result visit(Join e) {
     final Result leftResult = visitInput(e, 0).resetAlias();
     Result rightResult = visitInput(e, 1).resetAlias();
 
-    if (dialect.supportWrapNestedJoin(e)) {
-      String newAlias = "t" + e.getId(); // Calcite-style alias
+    if (dialect.shouldWrapNestedJoin(e)) {
+      String newAlias = "t" + e.getId(); // alias
       rightResult = wrapNestedJoin(rightResult, e.getRight(), newAlias);
     }
 

core/src/main/java/org/apache/calcite/sql/SqlDialect.java

@@ -1844,7 +1844,7 @@ private ContextImpl(DatabaseProduct databaseProduct,
    * @param relNode Relational expression representing a JOIN input
    * @return whether an extra subquery wrapper is required for nested JOINs
    */
-  public boolean supportWrapNestedJoin(RelNode relNode) {
+  public boolean shouldWrapNestedJoin(RelNode relNode) {
     return false;
   }
 

core/src/main/java/org/apache/calcite/sql/dialect/ClickHouseSqlDialect.java

@@ -412,7 +412,7 @@ private static void unparseFloor(SqlWriter writer, SqlCall call) {
     writer.endList(frame);
   }
 
-  @Override public boolean supportWrapNestedJoin(RelNode rel) {
+  @Override public boolean shouldWrapNestedJoin(RelNode rel) {
     if (!(rel instanceof Join)) {
       return false;
     }