modify class pre

Author: todd5167

core/src/main/java/com/dtstack/flink/sql/config/CalciteConfig.java

@@ -21,10 +21,11 @@
 
 import org.apache.calcite.config.Lex;
 import org.apache.calcite.sql.parser.SqlParser;
+import org.apache.calcite.sql.parser.SqlParser.Config;
 
 public class CalciteConfig {
 
-    public static SqlParser.Config MYSQL_LEX_CONFIG = org.apache.calcite.sql.parser.SqlParser
+    public static Config MYSQL_LEX_CONFIG = SqlParser
             .configBuilder()
             .setLex(Lex.MYSQL)
             .build();