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https://issues.apache.org/jira/browse/IMPALA-12903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17827899#comment-17827899
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Zoltán Borók-Nagy commented on IMPALA-12903:
--------------------------------------------
Ah, I forgot to assign this issue to myself. Sorry for the inconvenience, and
thanks, [~Eyizoha].
> Querying virtual column FILE__POSITION for TEXT and JSON tables crashes Impala
> ------------------------------------------------------------------------------
>
> Key: IMPALA-12903
> URL: https://issues.apache.org/jira/browse/IMPALA-12903
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Zoltán Borók-Nagy
> Assignee: Zoltán Borók-Nagy
> Priority: Major
>
> Repro:
> {noformat}
> select file__position from functional.alltypes; => CRASH
> select file__position from functional_json.alltypes; => CRASH{noformat}
> Stack trace:
> {noformat}
> ...
> #6 <signal handler called>
> #7 0x00000000031a671c in impala::ScannerContext::Stream::file_desc
> (this=0x0) at /home/boroknagyz/Impala/be/src/exec/scanner-context.h:157
> #8 0x0000000003351630 in impala::HdfsJsonScanner::Close (this=0xea22d80,
> row_batch=0xed63a20) at
> /home/boroknagyz/Impala/be/src/exec/json/hdfs-json-scanner.cc:99
> #9 0x00000000031c3eff in impala::HdfsScanner::Close (this=0xea22d80) at
> /home/boroknagyz/Impala/be/src/exec/hdfs-scanner.cc:176
> #10 0x00000000032f057f in impala::HdfsScanNode::ProcessSplit
> (this=0x14eb9000, filter_ctxs=..., expr_results_pool=0x7fa54b5cf400,
> scan_range=0xf2bb680, scanner_thread_reservation=0x7fa54b5cf328)
> at /home/boroknagyz/Impala/be/src/exec/hdfs-scan-node.cc:500
> #11 0x00000000032ef94c in impala::HdfsScanNode::ScannerThread
> (this=0x14eb9000, first_thread=true, scanner_thread_reservation=131072) at
> /home/boroknagyz/Impala/be/src/exec/hdfs-scan-node.cc:422{noformat}
> At frame #7 stream is NULL.
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