无法使用 liquibase 添加 NOT NULL 约束
Can't add NOT NULL constraint using liquibase
我有一个任务，我应该根据该任务执行后续步骤（使用 liquibase）：
- 向现有字段添加新字段table (someNewField);
- 更新所有现有数据（对于所有现有数据 someNewField = "someValue"）；
- 之后我需要让 someNewField NOT NULL。
我的解决方案（无效）：
<databaseChangeLog
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
<changeSet id="1-update-table" author="fatumepta">
<preConditions onFail="MARK_RAN">
<not>
<columnExists tableName="customer" columnName="last_name"/>
</not>
</preConditions>
<sql>
<!-- add a new text field -->
ALTER TABLE customer ADD COLUMN last_name text;
<!-- update already existing data -->
UPDATE customer SET last_name = 'unknown' WHERE last_name IS NULL;
<!-- make field mandatory -->
ALTER TABLE customer MODIFY last_name SET text NOT_NULL;
</sql>
</changeSet>
</databaseChangeLog>
我无法执行第 3 步 -> 出现错误：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liquibase' defined in class path resource [org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfiguration$LiquibaseConfiguration.class]: Invocation of init method failed; nested exception is liquibase.exception.MigrationFailedException: Migration failed for change set classpath:db/changelog/changelog-3.1.xml::2-update-table::fatumepta:
Reason: liquibase.exception.DatabaseException: ERROR: syntax error at or near "MODIFY"
Позиция: 22 [Failed SQL: (0) ALTER TABLE customer MODIFY last_name text NOT_NULL]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1788) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean[=11=](AbstractBeanFactory.java:335) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1161) ~[spring-context-5.3.1.jar:5.3.1]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:915) ~[spring-context-5.3.1.jar:5.3.1]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.1.jar:5.3.1]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) [spring-boot-2.4.0.jar:2.4.0]
at edu.liquibase.example.LiquibaseExampleApplication.main(LiquibaseExampleApplication.java:19) [classes/:na]
Caused by: liquibase.exception.MigrationFailedException: Migration failed for change set classpath:db/changelog/changelog-3.1.xml::2-update-table::fatumepta:
Reason: liquibase.exception.DatabaseException: ERROR: syntax error at or near "MODIFY"
Позиция: 22 [Failed SQL: (0) ALTER TABLE customer MODIFY last_name text NOT_NULL]
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:659) ~[liquibase-core-3.10.3.jar:na]
at liquibase.changelog.visitor.UpdateVisitor.visit(UpdateVisitor.java:53) ~[liquibase-core-3.10.3.jar:na]
at liquibase.changelog.ChangeLogIterator.run(ChangeLogIterator.java:97) ~[liquibase-core-3.10.3.jar:na]
at liquibase.Liquibase.update(Liquibase.java:201) ~[liquibase-core-3.10.3.jar:na]
at liquibase.Liquibase.update(Liquibase.java:178) ~[liquibase-core-3.10.3.jar:na]
at liquibase.integration.spring.SpringLiquibase.performUpdate(SpringLiquibase.java:368) ~[liquibase-core-3.10.3.jar:na]
at liquibase.integration.spring.SpringLiquibase.afterPropertiesSet(SpringLiquibase.java:316) ~[liquibase-core-3.10.3.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1847) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-5.3.1.jar:5.3.1]
... 19 common frames omitted
Caused by: liquibase.exception.DatabaseException: ERROR: syntax error at or near "MODIFY"
Позиция: 22 [Failed SQL: (0) ALTER TABLE customer MODIFY last_name text NOT_NULL]
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:430) ~[liquibase-core-3.10.3.jar:na]
at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:87) ~[liquibase-core-3.10.3.jar:na]
at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:159) ~[liquibase-core-3.10.3.jar:na]
at liquibase.database.AbstractJdbcDatabase.execute(AbstractJdbcDatabase.java:1276) ~[liquibase-core-3.10.3.jar:na]
at liquibase.database.AbstractJdbcDatabase.executeStatements(AbstractJdbcDatabase.java:1258) ~[liquibase-core-3.10.3.jar:na]
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:622) ~[liquibase-core-3.10.3.jar:na]
... 27 common frames omitted
Caused by: org.postgresql.util.PSQLException: ERROR: syntax error at or near "MODIFY"
Позиция: 22
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2553) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2285) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:323) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:473) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:393) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:322) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:308) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:284) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:279) ~[postgresql-42.2.18.jar:42.2.18]
at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-3.4.5.jar:na]
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:426) ~[liquibase-core-3.10.3.jar:na]
... 32 common frames omitted
请帮帮我。我不明白我做错了什么！
As documented in the manual需要用alter代替modify，必须是NOT NULL（没有下划线），数据类型也不需要重复：
ALTER TABLE customer ALTER last_name SET NOT NULL;
我有一个任务，我应该根据该任务执行后续步骤（使用 liquibase）：
- 向现有字段添加新字段table (someNewField);
- 更新所有现有数据（对于所有现有数据 someNewField = "someValue"）；
- 之后我需要让 someNewField NOT NULL。
我的解决方案（无效）：
<databaseChangeLog
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
<changeSet id="1-update-table" author="fatumepta">
<preConditions onFail="MARK_RAN">
<not>
<columnExists tableName="customer" columnName="last_name"/>
</not>
</preConditions>
<sql>
<!-- add a new text field -->
ALTER TABLE customer ADD COLUMN last_name text;
<!-- update already existing data -->
UPDATE customer SET last_name = 'unknown' WHERE last_name IS NULL;
<!-- make field mandatory -->
ALTER TABLE customer MODIFY last_name SET text NOT_NULL;
</sql>
</changeSet>
</databaseChangeLog>
我无法执行第 3 步 -> 出现错误：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liquibase' defined in class path resource [org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfiguration$LiquibaseConfiguration.class]: Invocation of init method failed; nested exception is liquibase.exception.MigrationFailedException: Migration failed for change set classpath:db/changelog/changelog-3.1.xml::2-update-table::fatumepta:
Reason: liquibase.exception.DatabaseException: ERROR: syntax error at or near "MODIFY"
Позиция: 22 [Failed SQL: (0) ALTER TABLE customer MODIFY last_name text NOT_NULL]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1788) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean[=11=](AbstractBeanFactory.java:335) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1161) ~[spring-context-5.3.1.jar:5.3.1]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:915) ~[spring-context-5.3.1.jar:5.3.1]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.1.jar:5.3.1]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) [spring-boot-2.4.0.jar:2.4.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) [spring-boot-2.4.0.jar:2.4.0]
at edu.liquibase.example.LiquibaseExampleApplication.main(LiquibaseExampleApplication.java:19) [classes/:na]
Caused by: liquibase.exception.MigrationFailedException: Migration failed for change set classpath:db/changelog/changelog-3.1.xml::2-update-table::fatumepta:
Reason: liquibase.exception.DatabaseException: ERROR: syntax error at or near "MODIFY"
Позиция: 22 [Failed SQL: (0) ALTER TABLE customer MODIFY last_name text NOT_NULL]
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:659) ~[liquibase-core-3.10.3.jar:na]
at liquibase.changelog.visitor.UpdateVisitor.visit(UpdateVisitor.java:53) ~[liquibase-core-3.10.3.jar:na]
at liquibase.changelog.ChangeLogIterator.run(ChangeLogIterator.java:97) ~[liquibase-core-3.10.3.jar:na]
at liquibase.Liquibase.update(Liquibase.java:201) ~[liquibase-core-3.10.3.jar:na]
at liquibase.Liquibase.update(Liquibase.java:178) ~[liquibase-core-3.10.3.jar:na]
at liquibase.integration.spring.SpringLiquibase.performUpdate(SpringLiquibase.java:368) ~[liquibase-core-3.10.3.jar:na]
at liquibase.integration.spring.SpringLiquibase.afterPropertiesSet(SpringLiquibase.java:316) ~[liquibase-core-3.10.3.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1847) ~[spring-beans-5.3.1.jar:5.3.1]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-5.3.1.jar:5.3.1]
... 19 common frames omitted
Caused by: liquibase.exception.DatabaseException: ERROR: syntax error at or near "MODIFY"
Позиция: 22 [Failed SQL: (0) ALTER TABLE customer MODIFY last_name text NOT_NULL]
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:430) ~[liquibase-core-3.10.3.jar:na]
at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:87) ~[liquibase-core-3.10.3.jar:na]
at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:159) ~[liquibase-core-3.10.3.jar:na]
at liquibase.database.AbstractJdbcDatabase.execute(AbstractJdbcDatabase.java:1276) ~[liquibase-core-3.10.3.jar:na]
at liquibase.database.AbstractJdbcDatabase.executeStatements(AbstractJdbcDatabase.java:1258) ~[liquibase-core-3.10.3.jar:na]
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:622) ~[liquibase-core-3.10.3.jar:na]
... 27 common frames omitted
Caused by: org.postgresql.util.PSQLException: ERROR: syntax error at or near "MODIFY"
Позиция: 22
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2553) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2285) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:323) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:473) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:393) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:322) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:308) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:284) ~[postgresql-42.2.18.jar:42.2.18]
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:279) ~[postgresql-42.2.18.jar:42.2.18]
at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95) ~[HikariCP-3.4.5.jar:na]
at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-3.4.5.jar:na]
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:426) ~[liquibase-core-3.10.3.jar:na]
... 32 common frames omitted
请帮帮我。我不明白我做错了什么！
As documented in the manual需要用alter代替modify，必须是NOT NULL（没有下划线），数据类型也不需要重复：
ALTER TABLE customer ALTER last_name SET NOT NULL;