commit e238a07cf20306bebd6ed2b393fa4e8e318ed6d4
Author: Skye Wanderman-Milne <skye@cloudera.com>
Date:   Sun Aug 18 21:10:10 2013 -0700

    IMPALA-525: Sequence scanners use average block size to minimize reads past eosr
    
    Change-Id: I33c198a5958ca8110f67682f7d51cfaf55b0bbd6

commit c80bb786fa15613e6a84f78949741fe9ed84743d
Author: Skye Wanderman-Milne <skye@cloudera.com>
Date:   Wed Aug 14 19:02:39 2013 -0700

    Fix IMPALA-129, IMPALA-534, and other scanner bugs.
    
    Change-Id: I7906f291fe6fd1bcfc96b8b03ed42ff31562b793

commit fd76fb205bbc6eb262159fcb59a3676c72202aaf
Author: Nong Li <nong@cloudera.com>
Date:   Sun Aug 4 17:41:35 2013 -0700

    IMPALA-122: Fix FindFirstBlock logic.
    
    Change-Id: I34e5ce2f6c112fdbcdd290faeff7d044ed77127d

commit 9dfeba6a61a929c3dc459a1d0352b8eada00d5ef
Author: Nong Li <nong@cloudera.com>
Date:   Wed Jul 10 19:38:20 2013 -0700

    Updates from more ScanNode cleanup.

commit fa4ac79147ae1cccb7f66e6d114dbde5e6ca3a91
Author: Nong Li <nong@cloudera.com>
Date:   Sat Jul 6 14:54:08 2013 -0700

    Updates from scan-node cleanup.

commit ff5000d730277e5fd1e8ff61d3d00fc1f0aece9c
Author: Skye Wanderman-Milne <skye@cloudera.com>
Date:   Wed May 15 15:48:46 2013 -0700

    Move row batch management out of ScannerContext and into HdfsScanner.

commit 40ca12958bf91886d5d9a025cefaddef7e9e0edb
Author: Nong Li <nong@cloudera.com>
Date:   Tue Jun 11 16:05:03 2013 -0700

    Update use of ReadWriteUtil

commit 75d3fa7d4e989d389ef1b279aee1225f5024a050
Author: Nong Li <nong@cloudera.com>
Date:   Sat May 18 14:19:22 2013 -0700

    Add mem limit to lzo scanner.