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The issue occurred when there were skipped pages and a column inside a collection was scanned, but its position was not needed. The repetition level still needs to be read in this case, as the skipped ranges are set in top level rows, so collection items need to know which top level row do they belong to. A DCHECK in StrideWriter's constructor was hit, otherwise the code ran correctly in release mode. The DCHECK is moved to functions where the condition would actually cause problems. Testing: - added and ran a regression test Change-Id: I5e8ef514ead71f732c73f910af7fd1aecd37bb81 Reviewed-on: http://gerrit.cloudera.org:8080/15598 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>