java HQL 意外的 AST 节点：分钟
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HQL Unexpected AST node: min
提问by Dennis R?ttger
I'm trying to create a HQL Query like so:
我正在尝试创建一个 HQL 查询，如下所示：
List<Task> results = session.createQuery("FROM Task where ProcessID = :procId " +
"and Role = :role and completed = 0 " +
"group by TaskID " +
"having min(chronology)")
.setParameter("procId", procId)
.setParameter("role", role).list();
The following error occurs:
出现以下错误：
<AST>:1:114: unexpected AST node: min
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1943)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.groupClause(HqlSqlBaseWalker.java:1521)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:618)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:299)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:247)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:248)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:105)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:168)
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:219)
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:197)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1736)
at de.arvato.icssa.db.worker.TaskWorker.getTask(TaskWorker.java:90)
at de.arvato.icssa.endpoints.TestServiceImpl.sendMail(TestServiceImpl.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:180)
at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)
at org.apache.cxf.jaxws.AbstractJAXWSMethodInvoker.invoke(AbstractJAXWSMethodInvoker.java:178)
at org.apache.cxf.jaxws.JAXWSMethodInvoker.invoke(JAXWSMethodInvoker.java:64)
at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:75)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.run(ServiceInvokerInterceptor.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:107)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:262)
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:122)
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:211)
at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:213)
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:193)
at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:129)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:187)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:110)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:166)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
I've read that HQL supports both having and the min-aggregate function, what appears to be the problem?
我读过 HQL 支持 have 和 min-aggregate 函数，这似乎是什么问题？
Thanks!
谢谢！
回答by soulcheck
This is a hint:
这是一个提示：
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1943)
havingclause in sql has to have a logical expression next to it.
havingsql 中的子句旁边必须有一个逻辑表达式。
In your case you have `min(chronology)'.
在您的情况下，您有“分钟（年表）”。
Try comparing it to something, like :
尝试将其与某些内容进行比较，例如：
having min(chronology) < 100
回答by BlueMoonWolf
I have the same problem,and as soulcheck said about,after having clause,you must have a logical expression in HQL(maybe many database like this).But,what I would say is,when you test the SQL in mysql,it allow the having clause of you SQL without a logical expression ,only the function like 'max'. like:
我有同样的问题，正如soulcheck所说，在有子句之后，你必须在HQL中有一个逻辑表达式（可能很多这样的数据库）。但是，我想说的是，当你在mysql中测试SQL时，它允许没有逻辑表达式的 SQL 的 have 子句，只有像“max”这样的函数。喜欢：
select * from key_info where source = '1' and target= '2' group by source HAVING max(expiry_date)
my mysql version is 5.5.52. I don't know whether still like this in new version.
我的 mysql 版本是 5.5.52。不知道新版本是否还喜欢这个。
