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From "James F. Adams (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-3157) Lexical error (EOF) when comment consists of a single character
Date Sun, 18 Nov 2007 19:26:43 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James F. Adams updated DERBY-3157:
----------------------------------

    Attachment: DERBY-3157.diff

Attached patch proposal DERBY-3157.diff for review.

I simplified the processing of end of line comments in order to correct certain termination
conditions.  A few addtional tests were added.

Running derbyall and suites.All.

> Lexical error (EOF) when comment consists of a single character
> ---------------------------------------------------------------
>
>                 Key: DERBY-3157
>                 URL: https://issues.apache.org/jira/browse/DERBY-3157
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.1.4, 10.4.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: James F. Adams
>            Priority: Minor
>         Attachments: DERBY-3157.diff
>
>
> The following statement fails with an SQLException. Adding whitespace or other characters
at the end of the comment makes it pass. Adding more whitespace at the beginning of the comment
doesn't help.
> PreparedStatement ps = c.prepareStatement("VALUES 1 -- x");
> Exception in thread "main" java.sql.SQLSyntaxErrorException: Lexical error at line 1,
column 14.  Encountered: <EOF> after : "".
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown Source)
> 	at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
> 	at comment.main(comment.java:5)
> Caused by: java.sql.SQLException: Lexical error at line 1, column 14.  Encountered: <EOF>
after : "".
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source)
> 	... 14 more
> Caused by: ERROR 42X02: Lexical error at line 1, column 14.  Encountered: <EOF>
after : "".
> 	at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
> 	at org.apache.derby.impl.sql.compile.ParserImpl.parseStatement(Unknown Source)
> 	at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)
> 	at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)
> 	at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown
Source)
> 	... 8 more

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