[jira] [Created] (LENS-95) NPE from replaceChainedColumns for some queries

["Raghavendra Singh (JIRA)" <ji...@apache.org>]

Raghavendra Singh created LENS-95:
-------------------------------------

             Summary: NPE from replaceChainedColumns for some queries
                 Key: LENS-95
                 URL: https://issues.apache.org/jira/browse/LENS-95
             Project: Apache Lens
          Issue Type: Bug
            Reporter: Raghavendra Singh


{CODE}
org.apache.lens.api.LensException: Rewriting failed, cause :null
	at org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:278)
	at org.apache.lens.server.query.QueryExecutionServiceImpl.rewriteAndSelect(QueryExecutionServiceImpl.java:967)
	at org.apache.lens.server.query.QueryExecutionServiceImpl.access$800(QueryExecutionServiceImpl.java:89)
	at org.apache.lens.server.query.QueryExecutionServiceImpl$QuerySubmitter.run(QueryExecutionServiceImpl.java:476)
	at java.lang.Thread.run(Thread.java:701)
Caused by: java.lang.NullPointerException
	at org.apache.lens.cube.parse.AliasReplacer.replaceChainedColumns(AliasReplacer.java:116)
	at org.apache.lens.cube.parse.AliasReplacer.rewriteContext(AliasReplacer.java:73)
	at org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:186)
	at org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:170)
	at org.apache.lens.cube.parse.CubeQueryRewriter.rewrite(CubeQueryRewriter.java:181)
	at org.apache.lens.driver.cube.RewriteUtil.rewriteQuery(RewriteUtil.java:249)
	... 4 more
{CODE}



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