Zoltán Borók-Nagy created IMPALA-12903:
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Summary: 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
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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