Certain keywords cannot be included as stream/table attributes

[senthuran16]

Description:
The following keywords cannot be included as an attribute in a stream/table definition:

FUNCTION
TRIGGER
OFFSET
SET
AT
IN
AGGREGATION
AGGREGATE
PER

eg: If we consider offset as an attribute, the following stream definition is invalid

define stream SweetProductionStream (name string, amount long, offset string);

However, we allow other keywords (such as LIMIT).

OS, DB, other environment details and versions:
WSO2 SI 1.1.0 and WSO2 SI Tooling 1.1.0

Steps to reproduce:

1. Deploy the following Siddhi application:

@App:name('SweetTotalApp')

define stream SweetProductionStream (name string, amount long, offset string);
 
@sink(type='log', prefix='Sweet Totals:')
define stream SweetTotalStream(count long);

@info(name='SweetTotalQuery')
from SweetProductionStream#window.timeBatch(1 min)
select count() as count
insert into SweetTotalStream;

2. It would result in the following error:

[2021-09-03 16:58:18,726] ERROR {org.wso2.carbon.streaming.integrator.core.internal.StreamProcessorDeployer} - org.wso2.carbon.streaming.integrator.core.internal.exception.SiddhiAppConfigurationException: Exception occurred when retrieving Siddhi App Name org.wso2.carbon.streaming.integrator.core.internal.exception.SiddhiAppDeploymentException: org.wso2.carbon.streaming.integrator.core.internal.exception.SiddhiAppConfigurationException: Exception occurred when retrieving Siddhi App Name 
	at org.wso2.carbon.streaming.integrator.core.internal.StreamProcessorDeployer.deploySiddhiQLFile(StreamProcessorDeployer.java:110)
	at org.wso2.carbon.streaming.integrator.core.internal.StreamProcessorDeployer.deploy(StreamProcessorDeployer.java:333)
	at org.wso2.carbon.deployment.engine.internal.DeploymentEngine.lambda$deployArtifacts$0(DeploymentEngine.java:291)
	at java.util.ArrayList.forEach(ArrayList.java:1259)
	at org.wso2.carbon.deployment.engine.internal.DeploymentEngine.deployArtifacts(DeploymentEngine.java:282)
	at org.wso2.carbon.deployment.engine.internal.RepositoryScanner.sweep(RepositoryScanner.java:112)
	at org.wso2.carbon.deployment.engine.internal.RepositoryScanner.scan(RepositoryScanner.java:68)
	at org.wso2.carbon.deployment.engine.internal.DeploymentEngine.start(DeploymentEngine.java:121)
	at org.wso2.carbon.deployment.engine.internal.DeploymentEngineListenerComponent.onAllRequiredCapabilitiesAvailable(DeploymentEngineListenerComponent.java:216)
	at org.wso2.carbon.kernel.internal.startupresolver.StartupComponentManager.lambda$notifySatisfiableComponents$7(StartupComponentManager.java:266)
	at java.util.ArrayList.forEach(ArrayList.java:1259)
	at org.wso2.carbon.kernel.internal.startupresolver.StartupComponentManager.notifySatisfiableComponents(StartupComponentManager.java:252)
	at org.wso2.carbon.kernel.internal.startupresolver.StartupOrderResolver$1.run(StartupOrderResolver.java:204)
	at java.util.TimerThread.mainLoop(Timer.java:555)
	at java.util.TimerThread.run(Timer.java:505)
Caused by: org.wso2.carbon.streaming.integrator.core.internal.exception.SiddhiAppConfigurationException: Exception occurred when retrieving Siddhi App Name 
	at org.wso2.carbon.streaming.integrator.core.internal.StreamProcessorService.getSiddhiAppName(StreamProcessorService.java:288)
	at org.wso2.carbon.streaming.integrator.core.internal.StreamProcessorDeployer.deploySiddhiQLFile(StreamProcessorDeployer.java:94)
	... 14 more
Caused by: io.siddhi.query.compiler.exception.SiddhiParserException: Error between @ Line: 4. Position: 0 and @ Line: 4. Position: 63. Syntax error in SiddhiQL, no viable alternative at input 'offset'.
	at io.siddhi.query.compiler.internal.SiddhiErrorListener.syntaxError(SiddhiErrorListener.java:36)
	at org.antlr.v4.runtime.ProxyErrorListener.syntaxError(ProxyErrorListener.java:41)
	at org.antlr.v4.runtime.Parser.notifyErrorListeners(Parser.java:544)
	at org.antlr.v4.runtime.DefaultErrorStrategy.reportNoViableAlternative(DefaultErrorStrategy.java:310)
	at org.antlr.v4.runtime.DefaultErrorStrategy.reportError(DefaultErrorStrategy.java:136)
	at io.siddhi.query.compiler.SiddhiQLParser.name(SiddhiQLParser.java:8522)
	at io.siddhi.query.compiler.SiddhiQLParser.attribute_name(SiddhiQLParser.java:8096)
	at io.siddhi.query.compiler.SiddhiQLParser.definition_stream(SiddhiQLParser.java:647)
	at io.siddhi.query.compiler.SiddhiQLParser.siddhi_app(SiddhiQLParser.java:331)
	at io.siddhi.query.compiler.SiddhiQLParser.parse(SiddhiQLParser.java:178)
	at io.siddhi.query.compiler.SiddhiCompiler.parse(SiddhiCompiler.java:74)
	at org.wso2.carbon.streaming.integrator.core.internal.StreamProcessorService.getSiddhiAppName(StreamProcessorService.java:275)
	... 15 more

[dnwick]

This is fixed - wso2/carbon-analytics#1959