[teiid-issues] [JBoss JIRA] (TEIID-2157) Need ability to push down LIMIT clause to Sybase

[Van Halbert (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-2157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712734#comment-12712734 ] 

Van Halbert commented on TEIID-2157:
------------------------------------

$ diff -u SybaseExecutionFactory.java.org SybaseExecutionFactory.java
--- SybaseExecutionFactory.java.org	2012-04-27 15:15:09.732258050 +0900
+++ SybaseExecutionFactory.java	2012-07-27 11:46:17.897220541 +0900
@@ -60,6 +60,7 @@
 public class SybaseExecutionFactory extends JDBCExecutionFactory {
 	
 	public static final String TWELVE_5 = "12.5"; //$NON-NLS-1$
+	public static final String TWELVE_5_3 = "12.5.3"; //$NON-NLS-1$
 	public static final String FIFTEEN_0_2 = "15.0.2"; //$NON-NLS-1$
 	public static final String FIFTEEN_5 = "15.5"; //$NON-NLS-1$
 	
@@ -391,4 +392,8 @@
     	return false;
     }
     
+    @Override
+    public boolean supportsRowLimit() {
+	return getDatabaseVersion().compareTo(TWELVE_5_3) >= 0;
+    }
 }
                
> Need ability to push down LIMIT clause to Sybase
> ------------------------------------------------
>
>                 Key: TEIID-2157
>                 URL: https://issues.jboss.org/browse/TEIID-2157
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: JDBC Connector
>    Affects Versions: 7.7.1
>            Reporter: Van Halbert
>            Assignee: Johnathon Lee
>             Fix For: 7.7.1
>
>
> Want to add the ability to push down LIMIT clause to Sybase, but it is not
> supported as of now, becasue the LIMIT translation capability is
> disabled.
> SybaseExecutionFactory#supportsRowLimit returns false and it is
> hard-coded. If it returns true, EDS can push down
> LIMIT to Sybase translating it to TOP clause, since SybaseExecutionFactory has translateLimit
> method which translate the LIMIT to TOP clause. The customer want a
> property which can be switched on the limit translation easily than
> writing java code.

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