HAWQ-368. Fix runawqy query cancellation issue. closes #376
HAWQ-368. Fix runawqy query cancellation issue. closes #376

Signed-off-by: Karthikeyan Jambu Rajaraman <6977810e60f6c457ed4e9b3d3ac70eefddef92e5@gmail.com>

huor/incubator-hawq,jianlirong/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,huor/incubator-hawq,wengyanqing/incubator-hawq,outofmem0ry/incubator-hawq,outofmem0ry/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,huor/incubator-hawq,lavjain/incubator-hawq,jianlirong/incubator-hawq,stanlyxiang/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,jianlirong/incubator-hawq,huor/incubator-hawq,jianlirong/incubator-hawq,outofmem0ry/incubator-hawq,outofmem0ry/incubator-hawq,wengyanqing/incubator-hawq,huor/incubator-hawq,jianlirong/incubator-hawq,stanlyxiang/incubator-hawq,jianlirong/incubator-hawq,huor/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,huor/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,lavjain/incubator-hawq,outofmem0ry/incubator-hawq,stanlyxiang/incubator-hawq