[Spring] Error executing DDL "alter table if exists board add constraint (...) foreign key (user_id) references user 해결

에러

Error executing DDL "drop table if exists user cascade " via JDBC Statement
(...)
GenerationTarget encountered exception accepting command : Error executing DDL "create table user (id bigint not null, create_date_time timestamp(6), update_date_time timestamp(6), password varchar(255) not null, username varchar(255) not null, primary key (id))" via JDBC Statement
(...)
GenerationTarget encountered exception accepting command : Error executing DDL "alter table if exists user add constraint UK_sb8bbouer5wak8vyiiy4pf2bx unique (username)" via JDBC Statement
(...)
GenerationTarget encountered exception accepting command : Error executing DDL "alter table if exists board add constraint FKfyf1fchnby6hndhlfaidier1r foreign key (user_id) references user" via JDBC Statement
(...)

원인

한동안 삽질해본 결과 Table이름을 User로 사용해서 그런 것이였다.
user라는 테이블은 본래 기본적으로 있는 테이블인지 사용하면 에러가 발생하였다.
원래 Member로 쓰는데 Django공부하고 넘어오니 습관이...;;;

해결

테이블 이름이 중복되서 생기는 문제이므로 테이블명을 변경해주면 해결됩니다.
이름은 따로 설정해주지 않으면 클래스명을 스네이크케이스로 변환하여 정의되는데 클래스명이 User일때 user로 변하기 때문에 문제가 발생하므로 클래스명을 변경해주거나
@Table(name = "<클래스명>")를 붙쳐서 이름을 변경해주면 됩니다.

예시

에러 전체

뭔가 굉장히 긴 에러가 발생한다...

org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "drop table if exists user cascade " via JDBC Statement
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaDropperImpl.applySqlString(SchemaDropperImpl.java:419) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaDropperImpl.applySqlStrings(SchemaDropperImpl.java:403) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaDropperImpl.dropFromMetadata(SchemaDropperImpl.java:272) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaDropperImpl.performDrop(SchemaDropperImpl.java:178) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaDropperImpl.doDrop(SchemaDropperImpl.java:149) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaDropperImpl.doDrop(SchemaDropperImpl.java:117) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:242) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.lambda$process$5(SchemaManagementToolCoordinator.java:143) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at java.base/java.util.HashMap.forEach(HashMap.java:1421) ~[na:na]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:140) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:334) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:415) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1425) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:66) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1797) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1747) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1130) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:905) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1291) ~[spring-boot-3.0.0.jar:3.0.0]
	at com.spring.onlinecommunity.OnlineCommunityApplication.main(OnlineCommunityApplication.java:10) ~[main/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-3.0.0.jar:3.0.0]
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "drop table if exists [*]user cascade "; expected "identifier"; SQL statement:
drop table if exists user cascade  [42001-214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:502) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getSyntaxError(DbException.java:261) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifier(Parser.java:5656) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5616) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5645) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseDrop(Parser.java:2188) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parsePrepared(Parser.java:776) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:689) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:661) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.prepareCommand(Parser.java:569) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareLocal(SessionLocal.java:631) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareCommand(SessionLocal.java:554) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1116) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:237) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:223) ~[h2-2.1.214.jar:2.1.214]
	at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:94) ~[HikariCP-5.0.1.jar:na]
	at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-5.0.1.jar:na]
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	... 41 common frames omitted

2022-12-06T14:19:43.593+09:00  WARN 30453 --- [  restartedMain] o.h.t.s.i.ExceptionHandlerLoggedImpl     : GenerationTarget encountered exception accepting command : Error executing DDL "create table user (id bigint not null, create_date_time timestamp(6), update_date_time timestamp(6), password varchar(255) not null, username varchar(255) not null, primary key (id))" via JDBC Statement

org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "create table user (id bigint not null, create_date_time timestamp(6), update_date_time timestamp(6), password varchar(255) not null, username varchar(255) not null, primary key (id))" via JDBC Statement
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:502) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:486) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:363) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:176) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:144) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:128) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:254) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.lambda$process$5(SchemaManagementToolCoordinator.java:143) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at java.base/java.util.HashMap.forEach(HashMap.java:1421) ~[na:na]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:140) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:334) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:415) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1425) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:66) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1797) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1747) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1130) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:905) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1291) ~[spring-boot-3.0.0.jar:3.0.0]
	at com.spring.onlinecommunity.OnlineCommunityApplication.main(OnlineCommunityApplication.java:10) ~[main/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-3.0.0.jar:3.0.0]
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "create table [*]user (id bigint not null, create_date_time timestamp(6), update_date_time timestamp(6), password varchar(255) not null, username varchar(255) not null, primary key (id))"; expected "identifier"; SQL statement:
create table user (id bigint not null, create_date_time timestamp(6), update_date_time timestamp(6), password varchar(255) not null, username varchar(255) not null, primary key (id)) [42001-214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:502) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getSyntaxError(DbException.java:261) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifier(Parser.java:5656) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5616) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5645) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseCreateTable(Parser.java:9253) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseCreate(Parser.java:6784) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parsePrepared(Parser.java:763) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:689) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:661) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.prepareCommand(Parser.java:569) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareLocal(SessionLocal.java:631) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareCommand(SessionLocal.java:554) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1116) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:237) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:223) ~[h2-2.1.214.jar:2.1.214]
	at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:94) ~[HikariCP-5.0.1.jar:na]
	at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-5.0.1.jar:na]
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	... 41 common frames omitted

2022-12-06T14:19:43.594+09:00  WARN 30453 --- [  restartedMain] o.h.t.s.i.ExceptionHandlerLoggedImpl     : GenerationTarget encountered exception accepting command : Error executing DDL "alter table if exists user add constraint UK_sb8bbouer5wak8vyiiy4pf2bx unique (username)" via JDBC Statement

org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "alter table if exists user add constraint UK_sb8bbouer5wak8vyiiy4pf2bx unique (username)" via JDBC Statement
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:502) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:486) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:402) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:176) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:144) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:128) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:254) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.lambda$process$5(SchemaManagementToolCoordinator.java:143) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at java.base/java.util.HashMap.forEach(HashMap.java:1421) ~[na:na]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:140) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:334) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:415) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1425) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:66) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1797) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1747) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1130) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:905) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1291) ~[spring-boot-3.0.0.jar:3.0.0]
	at com.spring.onlinecommunity.OnlineCommunityApplication.main(OnlineCommunityApplication.java:10) ~[main/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-3.0.0.jar:3.0.0]
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "alter table if exists [*]user add constraint UK_sb8bbouer5wak8vyiiy4pf2bx unique (username)"; expected "identifier"; SQL statement:
alter table if exists user add constraint UK_sb8bbouer5wak8vyiiy4pf2bx unique (username) [42001-214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:502) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getSyntaxError(DbException.java:261) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifier(Parser.java:5656) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5616) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5645) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseAlterTable(Parser.java:8476) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseAlter(Parser.java:7548) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parsePrepared(Parser.java:747) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:689) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:661) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.prepareCommand(Parser.java:569) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareLocal(SessionLocal.java:631) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareCommand(SessionLocal.java:554) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1116) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:237) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:223) ~[h2-2.1.214.jar:2.1.214]
	at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:94) ~[HikariCP-5.0.1.jar:na]
	at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-5.0.1.jar:na]
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	... 41 common frames omitted

2022-12-06T14:19:43.597+09:00  WARN 30453 --- [  restartedMain] o.h.t.s.i.ExceptionHandlerLoggedImpl     : GenerationTarget encountered exception accepting command : Error executing DDL "alter table if exists board add constraint FKfyf1fchnby6hndhlfaidier1r foreign key (user_id) references user" via JDBC Statement

org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "alter table if exists board add constraint FKfyf1fchnby6hndhlfaidier1r foreign key (user_id) references user" via JDBC Statement
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:502) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:486) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:433) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:176) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:144) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:128) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:254) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.lambda$process$5(SchemaManagementToolCoordinator.java:143) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at java.base/java.util.HashMap.forEach(HashMap.java:1421) ~[na:na]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:140) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:334) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:415) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1425) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:66) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1797) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1747) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1130) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:905) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.2.jar:6.0.2]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302) ~[spring-boot-3.0.0.jar:3.0.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1291) ~[spring-boot-3.0.0.jar:3.0.0]
	at com.spring.onlinecommunity.OnlineCommunityApplication.main(OnlineCommunityApplication.java:10) ~[main/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-3.0.0.jar:3.0.0]
Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Syntax error in SQL statement "alter table if exists board add constraint FKfyf1fchnby6hndhlfaidier1r foreign key (user_id) references [*]user"; expected "identifier"; SQL statement:
alter table if exists board add constraint FKfyf1fchnby6hndhlfaidier1r foreign key (user_id) references user [42001-214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:502) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.message.DbException.getSyntaxError(DbException.java:261) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifier(Parser.java:5656) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.readIdentifierWithSchema(Parser.java:5616) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseReferences(Parser.java:9180) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseTableConstraintIf(Parser.java:9114) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseAlterTable(Parser.java:8479) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parseAlter(Parser.java:7548) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parsePrepared(Parser.java:747) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:689) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.parse(Parser.java:661) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.command.Parser.prepareCommand(Parser.java:569) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareLocal(SessionLocal.java:631) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.engine.SessionLocal.prepareCommand(SessionLocal.java:554) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1116) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:237) ~[h2-2.1.214.jar:2.1.214]
	at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:223) ~[h2-2.1.214.jar:2.1.214]
	at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:94) ~[HikariCP-5.0.1.jar:na]
	at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-5.0.1.jar:na]
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
	... 41 common frames omitted