fix SELECT

	*
FROM
	mysql.role_edges hiib
WHERE
	1 = 1
	AND hiib.FROM_HOST = 'N'
		AND MOD ( hiib.FROM_HOST, 1 ) = 0

	AND hiib.FROM_HOST = 'LWJ_CODE_TEST'
	AND hiib.FROM_HOST = 21
	LIMIT 100

	 Illegal use of dynamic parameter

hbt/src/main/java/io/mycat/DrdsRunner.java

@@ -444,7 +444,10 @@ private RelNode getRelRoot(String defaultSchemaName,
                         MycatCalciteSupport.INSTANCE.getValidatorConfig()) {
                     @Override
                     protected void inferUnknownTypes(@Nonnull RelDataType inferredType, @Nonnull SqlValidatorScope scope, @Nonnull SqlNode node) {
-
+                        if (node!=null&&node instanceof SqlDynamicParam){
+                            RelDataType relDataType = deriveType(scope, node);
+                           return;
+                        }
                         super.inferUnknownTypes(inferredType, scope, node);
                     }