我将应用程序更新为grails3.1.9,数据库迁移插件也有问题。
我的产品application.yml如下所示:
production:
dataSource:
driverClassName: org.postgresql.Driver
dialect: org.hibernate.dialect.PostgreSQLDialect
dbCreate: none
url: jdbc:postgresql://localhost:5432/something
username: postgres
password: postgres
properties:我的build.gradle看起来是这样的:
buildscript {
dependencies {
classpath 'org.grails.plugins:database-migration:2.0.0.RC4'
}
}
dependencies {
compile 'org.liquibase:liquibase-core:3.4.1'
compile 'org.grails.plugins:database-migration:2.0.0.RC4'
}这是变革的开始g:
databaseChangeLog = {
changeSet(author: "michal (generated)", id: "1472650791344-1") {
createTable(tableName: "appointment") {
column(autoIncrement: "true", name: "id", type: "BIGINT") {
constraints(primaryKey: "true", primaryKeyName: "appointmentPK")
}
column(name: "version", type: "BIGINT")
column(name: "customer_id", type: "BIGINT")
column(name: "duration", type: "BLOB(255)")
column(name: "note", type: "CLOB")
column(defaultValueComputed: "0", name: "personal_available", type: "BOOLEAN")
column(defaultValueComputed: "0", name: "personal_booked", type: "BOOLEAN")
column(name: "provider_id", type: "BIGINT")
column(name: "start_time", type: "BLOB(255)")
column(name: "url", type: "VARCHAR(255)")
}
}当我在生产模式下运行我的应用程序时,我会得到这个错误。
SEVERE 8/31/16 3:41 PM: liquibase: changelog.groovy: changelog.groovy::1472650791344-1::michal (generated): Change Set changelog.groovy::1472650791344-1::michal (generated) failed. Error: ERROR: relation "appointment" already exists [Failed SQL: CREATE TABLE public.appointment (id BIGSERIAL NOT NULL, version BIGINT, customer_id BIGINT, duration BYTEA, note TEXT, personal_available BOOLEAN DEFAULT 0, personal_booked BOOLEAN DEFAULT 0, provider_id BIGINT, start_time BYTEA, url VARCHAR(255), CONSTRAINT "appointmentPK" PRIMARY KEY (id))]
liquibase.exception.DatabaseException: ERROR: relation "appointment" already exists [Failed SQL: CREATE TABLE public.appointment (id BIGSERIAL NOT NULL, version BIGINT, customer_id BIGINT, duration BYTEA, note TEXT, personal_available BOOLEAN DEFAULT 0, personal_booked BOOLEAN DEFAULT 0, provider_id BIGINT, start_time BYTEA, url VARCHAR(255), CONSTRAINT "appointmentPK" PRIMARY KEY (id))]
at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:316)..。
Caused by: org.postgresql.util.PSQLException: ERROR: relation "appointment" already exists我会感激任何想法,为什么它不起作用。
谢谢格雷戈·佩金。设置dbcreate来验证确实帮助我修复了这个错误。
发布于 2016-08-31 17:19:44
表已经存在似乎很奇怪,但我昨晚在dev环境中遇到了这样的情况,所以我知道这是可能发生的。例如,即使您有dbCreate: none,可能hbm2ddl迁移工具是由于一个bug而执行的。查查日志。
或者您的databasechangelog表由于某种原因被意外清除。检查数据库表中是否存在对应的特定更改集行。
对于这个特定的变更集,您可以做的一件事是向变更集添加一个tableExists预条件,如果表已经存在,则使用onFail="MARK_RAN"将变更集标记为EXECUTED。Liquibase的作者曾经写道,由于性能问题,应该谨慎地使用预条件。因此,如果你发现自己为每一个变化都创造了一个前提条件,你可能需要重新考虑。
注意,如果收到更多更改集的此错误,则可能需要使用dbm-changelog-sync (http://grails-plugins.github.io/grails-database-migration/1.4.0/ref/Maintenance%20Scripts/dbm-changelog-sync.html)将所有更改集标记为“已执行”,实质上告诉Liquibase在服务器随后重新启动时忽略这些更改集。
如果您确实希望执行一些更改集(而不是忽略) --例如,您最近做了一些更改--那么您可以使用上下文标记“要被忽略的”更改集,然后使用这些值作为context参数运行context命令。
有关更多信息,请参见以下链接。* http://grails-plugins.github.io/grails-database-migration/1.4.0/ref/Maintenance%20Scripts/dbm-changelog-sync.html * http://www.liquibase.org/2014/11/contexts-vs-labels.html
https://stackoverflow.com/questions/39251406
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