springnick opened a new issue #8590:
URL: https://github.com/apache/shardingsphere/issues/8590
## Bug Report
Which version of ShardingSphere did you use?
A: 4.1.1
Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
A: ShardingSphere-JDBC
Expected behavior
A: sql should be able to be parsed correctly,
Actual behavior
A: got an exception when parsing a simple sql
java.lang.StringIndexOutOfBoundsException: String index out of range: 0
at java.lang.String.charAt(String.java:658)
at
org.apache.shardingsphere.sql.parser.sql.util.SQLUtil.getParenthesesOffset(SQLUtil.java:98)
at
org.apache.shardingsphere.sql.parser.sql.util.SQLUtil.getExpressionWithoutOutsideParentheses(SQLUtil.java:92)
at
org.apache.shardingsphere.sql.parser.sql.segment.dml.item.ExpressionProjectionSegment.<init>(ExpressionProjectionSegment.java:47)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.createProjection(MySQLDMLVisitor.java:474)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjection(MySQLDMLVisitor.java:434)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjection(MySQLDMLVisitor.java:127)
at
org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$ProjectionContext.accept(MySQLStatementParser.java:5370)
at
org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjections(MySQLDMLVisitor.java:410)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitProjections(MySQLDMLVisitor.java:127)
at
org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$ProjectionsContext.accept(MySQLStatementParser.java:4865)
at
org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:329)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:127)
at
org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectClauseContext.accept(MySQLStatementParser.java:4551)
at
org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:322)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:127)
at
org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$UnionClauseContext.accept(MySQLStatementParser.java:4446)
at
org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelect(MySQLDMLVisitor.java:314)
at
org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelect(MySQLDMLVisitor.java:127)
at
org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectContext.accept(MySQLStatementParser.java:3098)
at
org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at
org.apache.shardingsphere.sql.parser.SQLParserEngine.parse0(SQLParserEngine.java:80)
at
org.apache.shardingsphere.sql.parser.SQLParserEngine.parse(SQLParserEngine.java:61)
at com.example.nick1.ParserTest.testParse2(ParserTest.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Reason analyze (If you can)
A: not sure, please check the exception message
Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
A: with ShardingSphere 4.1.1, write a simple junit test case to parse a
simple sql as following:
public class ParserTest {
@Test
public void testParse2(){
SQLParserEngine parserEngine=
SQLParserEngineFactory.getSQLParserEngine("MySQL");
String sql="select user_id, name, '' name2 from t_user where name=?";
SQLStatement sqlStatement=parserEngine.parse(sql,false);
Assert.notNull(sqlStatement,"statement should not be null");
}
}
### Example codes for reproduce this issue (such as a github link).
public class ParserTest {
@Test
public void testParse2(){
SQLParserEngine parserEngine=
SQLParserEngineFactory.getSQLParserEngine("MySQL");
String sql="select user_id, name, '' name2 from t_user where name=?";
SQLStatement sqlStatement=parserEngine.parse(sql,false);
Assert.notNull(sqlStatement,"statement should not be null");
}
}
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