pg-yang commented on code in PR #9813:
URL: https://github.com/apache/skywalking/pull/9813#discussion_r999097080
##########
oap-server/oal-grammar/src/main/antlr4/org/apache/skywalking/oal/rt/grammar/OALParser.g4:
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@@ -87,7 +87,9 @@ functionName
funcParamExpression
: expression
;
-
+arrayFuncParamExpression
+ : LS_BRACKET ((funcParamExpression|literalExpression|attributeExpression)
(COMMA (funcParamExpression|literalExpression|attributeExpression))*) RS_BRACKET
Review Comment:
```
mq_transmission_latency =
from(MessageQueueAccess.transmissionLatency).filter(operation ==
MessageQueueOperation.Consume).labeledLongAvg([topic,queue,queue,"1"]);
```
Like this , we could use `[a]` to represent an arg
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