java Siddhi是否无法按多个变量分组？

9 月，2 周 Questions & Answers 348

我有以下流定义：

String eventStreamDefinition = "define stream cdrEventStream (nodeId string, phone string, timeStamp long, isOutgoingCall bool); ";

以及查询：

String query = "@info(name = 'query1') from cdrEventStream#window.externalTime(timeStamp,5 sec) select nodeId, phone, timeStamp, isOutgoingCall, count(nodeId) as callCount group by phone,isOutgoingCall insert all events into outputStream;";

但当我试图编译它们时，我得到：

org.wso2.siddhi.query.compiler.exception.SiddhiParserException: You have an error in your SiddhiQL at line 1:267, extraneous input ',' expecting {'#', STREAM, DEFINE, TABLE, FROM, PARTITION, WINDOW, SELECT, GROUP, BY, HAVING, INSERT, DELETE, UPDATE, RETURN, EVENTS, INTO, OUTPUT, EXPIRED, CURRENT, SNAPSHOT, FOR, RAW, OF, AS, OR, AND, ON, IS, NOT, WITHIN, WITH, BEGIN, END, NULL, EVERY, LAST, ALL, FIRST, JOIN, INNER, OUTER, RIGHT, LEFT, FULL, UNIDIRECTIONAL, YEARS, MONTHS, WEEKS, DAYS, HOURS, MINUTES, SECONDS, MILLISECONDS, FALSE, TRUE, STRING, INT, LONG, FLOAT, DOUBLE, BOOL, OBJECT, ID_QUOTES, ID}
    at org.wso2.siddhi.query.compiler.internal.SiddhiErrorListener.syntaxError(SiddhiErrorListener.java:34)
    at org.antlr.v4.runtime.ProxyErrorListener.syntaxError(ProxyErrorListener.java:65)
    at org.antlr.v4.runtime.Parser.notifyErrorListeners(Parser.java:558)
    at org.antlr.v4.runtime.DefaultErrorStrategy.reportUnwantedToken(DefaultErrorStrategy.java:377)
    at org.antlr.v4.runtime.DefaultErrorStrategy.sync(DefaultErrorStrategy.java:275)
    at org.wso2.siddhi.query.compiler.SiddhiQLParser.group_by(SiddhiQLParser.java:3783)
    at org.wso2.siddhi.query.compiler.SiddhiQLParser.query_section(SiddhiQLParser.java:3713)
    at org.wso2.siddhi.query.compiler.SiddhiQLParser.query(SiddhiQLParser.java:1903)
    at org.wso2.siddhi.query.compiler.SiddhiQLParser.execution_element(SiddhiQLParser.java:619)
    at org.wso2.siddhi.query.compiler.SiddhiQLParser.execution_plan(SiddhiQLParser.java:550)
    at org.wso2.siddhi.query.compiler.SiddhiQLParser.parse(SiddhiQLParser.java:152)
    at org.wso2.siddhi.query.compiler.SiddhiCompiler.parse(SiddhiCompiler.java:61)
    at org.wso2.siddhi.core.SiddhiManager.createExecutionPlanRuntime(SiddhiManager.java:59)

要编译查询，唯一的方法是从group by子句中删除isOutgoingCall。Siddhi文档指出，应该可以通过多个变量进行分组。这是虫子吗

这是在3.0.0-alpha版本上

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java Siddhi是否无法按多个变量分组？

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