如何编写hive sql以从表A中获取表B(没有任何UDF)?
PLATFORM USER_ID CLICK_TIME CLICK_URL
WEB 12332321 2013-03-21 13:48:31.324 / home /
WEB 12332321 2013-03-21 13:48:32.954 / selectcat / er /
WEB 12332321 2013-03-21 13:48:46.365 /er/viewad/12.html
WEB 12332321 2013-03-21 13:48:53.651 /er/viewad/13.html
WEB 12332321 2013-03-21 13:49:13.435 /er/viewad/24.html
WEB 12332321 2013-03-21 13:49:35.876 / selectcat / che /
WEB 12332321 2013-03-21 13:49:56.398 /che/viewad/93.html
WEB 12332321 2013-03-21 13:50:03.143 /che/viewad/10.html
WEB 12332321 2013-03-21 13:50:34.265 / home /
WAP 32483923 2013-03-21 23:58:41.123 / m / home /
WAP 32483923 2013-03-21 23:59:16.123 / m / selectcat / fang /
WAP 32483923 2013-03-21 23:59:45.123 /m/fang/33.html ......
PLATFORM USER_ID SEQ FROM_URL TO_URL
WEB 12332321 1 NULL / home /
WEB 12332321 2 / home / / selectcat / er /
WEB 12332321 3 / selectcat / er / /er/viewad/12.html
WEB 12332321 4 /er/viewad/12.html /er/viewad/13.html
WEB 12332321 5 /er/viewad/13.html /er/viewad/24.html
WEB 12332321 6 /er/viewad/24.html / selectcat / che /
WEB 12332321 7 / selectcat / che / /che/viewad/93.html
WEB 12332321 8 /che/viewad/93.html /che/viewad/10.html
WEB 12332321 9 /che/viewad/10.html / home /
WAP 32483923 1 NULL / m / home /
WAP 32483923 2 / m / home / / m / selectcat / fang /
WAP 32483923 3 / m / selectcat / fang / /m/fang/33.html
WAP 32483923 4 /m/fang/33.html /m/fang/54.html