在将Spring Boot从版本2.6.3升级到2.7.3后，我的H2数据库出现了问题(在Spring Boot升级之后，显然H2数据库也得到了升级)。

启动应用程序后，我收到错误：

GenerationTarget encountered exception accepting command : Error executing DDL "create table appa_attributes (id bigint generated by default as identity, name varchar(255), value varchar(4000), primary key (id))" via JDBC Statement org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "create table appa_attributes (id bigint generated by default as identity, name varchar(255), value varchar(4000), primary key (id))" via JDBC Statement

应用程序.属性：

server.port=8080
spring.mvc.favicon.enabled = false // this in version 2.7 is deprecated
spring.datasource.url=jdbc:h2:mem:testdb
spring.h2.console.enabled=true
spring.h2.console.path=/console/
spring.h2.console.settings.web-allow-others=true
spring.jpa.hibernate.ddl-auto=create-drop

Attribute.java(表定义如下)

@Entity
@Table(name = "appa_attributes")
public class Attribute extends AbstractEntity<Long> implements Comparable<Attribute> {

    @Column(length = 255)
    private String name;

    @Column(length = 4000)
    private String value;

//getters and setter