change in the code: going from dropping temp tables to truncating them, due to the internal bug in which tables do not get dropped in the same session
change in the code: going from dropping temp tables to truncating them, due to the internal bug
in which tables do not get dropped in the same session

mktal/incubator-madlib,rashmi815/incubator-madlib,mktal/incubator-madlib,apache/incubator-madlib,iyerr3/incubator-madlib,cooper-sloan/incubator-madlib,iyerr3/incubator-madlib,apache/incubator-madlib,lmatthieu/incubator-madlib,apache/incubator-madlib,orhankislal/madlib,mktal/incubator-madlib,njayaram2/incubator-madlib,njayaram2/incubator-madlib,njayaram2/madlib,lmatthieu/incubator-madlib,rashmi815/incubator-madlib,hpandeycodeit/incubator-madlib,orhankislal/madlib,orhankislal/madlib,mktal/incubator-madlib,hpandeycodeit/incubator-madlib,iyerr3/incubator-madlib,orhankislal/incubator-madlib,orhankislal/incubator-madlib,orhankislal/incubator-madlib,rvs/incubator-madlib,hpandeycodeit/incubator-madlib,madlib/madlib,orhankislal/madlib,orhankislal/incubator-madlib,madlib/madlib,rvs/incubator-madlib,lmatthieu/incubator-madlib,njayaram2/madlib,apache/incubator-madlib,rashmi815/incubator-madlib,orhankislal/madlib,madlib/madlib,rvs/incubator-madlib,cooper-sloan/incubator-madlib,cooper-sloan/incubator-madlib,hpandeycodeit/incubator-madlib,iyerr3/incubator-madlib,mktal/incubator-madlib,njayaram2/madlib,cooper-sloan/incubator-madlib,rashmi815/incubator-madlib,lmatthieu/incubator-madlib,rashmi815/incubator-madlib,madlib/madlib,madlib/madlib,orhankislal/incubator-madlib,njayaram2/incubator-madlib,rvs/incubator-madlib,rvs/incubator-madlib,njayaram2/madlib,njayaram2/incubator-madlib,hpandeycodeit/incubator-madlib,apache/incubator-madlib,lmatthieu/incubator-madlib,iyerr3/incubator-madlib,njayaram2/madlib,cooper-sloan/incubator-madlib,njayaram2/incubator-madlib