[BUG] JSQLParser 5.3 : MySQL : Encountered unexpected token: "as" "AS"

[okou19900722]

Always check against the Latest SNAPSHOT of JSQLParser and the Syntax Diagram

Failing SQL Feature:

• Encountered unexpected token: "as" "AS"

SQL Example:

```sql
insert into xxx(a, b, c) values (?, ?, ?) as x on duplicate key update a=?,b=?,c=?
```

Software Information:

• JSqlParser 5.3
• Database MySQL

Tips:

net.sf.jsqlparser.JSQLParserException: net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "as" "AS"
    at line 1, column 43.

Was expecting one of:

    "ON"
    "RETURN"
    "RETURNING"
    <EOF>
    <ST_SEMICOLON>


	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatements(CCJSqlParserUtil.java:444)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatements(CCJSqlParserUtil.java:414)
	at cn.jumiao.infra.service.Test.test(Test.java:15)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
	at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.util.concurrent.ExecutionException: net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "as" "AS"
    at line 1, column 43.

Was expecting one of:

    "ON"
    "RETURN"
    "RETURNING"
    <EOF>
    <ST_SEMICOLON>

	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:205)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatements(CCJSqlParserUtil.java:437)
	... 29 more
Caused by: net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "as" "AS"
    at line 1, column 43.

Was expecting one of:

    "ON"
    "RETURN"
    "RETURNING"
    <EOF>
    <ST_SEMICOLON>

	at net.sf.jsqlparser.parser.CCJSqlParser.generateParseException(CCJSqlParser.java:53111)
	at net.sf.jsqlparser.parser.CCJSqlParser.jj_consume_token(CCJSqlParser.java:52929)
	at net.sf.jsqlparser.parser.CCJSqlParser.Statements(CCJSqlParser.java:1172)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil$2.call(CCJSqlParserUtil.java:433)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil$2.call(CCJSqlParserUtil.java:430)
	at java.base/java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:264)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java)
	at --- Async.Stack.Trace --- (captured by IntelliJ IDEA debugger)
	at java.base/java.util.concurrent.FutureTask.<init>(FutureTask.java:132)
	at java.base/java.util.concurrent.AbstractExecutorService.newTaskFor(AbstractExecutorService.java:113)
	at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:144)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatements(CCJSqlParserUtil.java:430)
	... 29 more