fix identifier processing not correct

Author: liubao68

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryIntegrationTests-gaussdb.sql

@@ -55,4 +55,4 @@ CREATE TABLE ENTITY_WITH_SEQUENCE
     NAME VARCHAR(100)
 );
 
-CREATE SEQUENCE "ENTITY_SEQUENCE" START WITH 1 INCREMENT BY 1 NO MAXVALUE;
+CREATE SEQUENCE ENTITY_SEQUENCE START WITH 1 INCREMENT BY 1 NO MAXVALUE;

spring-data-relational/src/main/java/org/springframework/data/relational/core/dialect/GaussDBDialect.java

@@ -52,8 +52,8 @@ public class GaussDBDialect extends AbstractDialect {
     private static final Set<Class<?>> POSTGRES_SIMPLE_TYPES = Set.of(UUID.class, URL.class, URI.class, InetAddress.class,
         Map.class);
 
-    private final IdentifierProcessing identifierProcessing = IdentifierProcessing.create(Quoting.ANSI,
-        LetterCasing.LOWER_CASE);
+    private final IdentifierProcessing identifierProcessing = IdentifierProcessing.create(Quoting.NONE,
+        LetterCasing.UPPER_CASE);
 
     private final IdGeneration idGeneration = new IdGeneration() {