| --! qt:dataset:src |
| set hive.map.aggr=false; |
| set hive.groupby.skewindata=false; |
| set mapred.reduce.tasks=31; |
| |
| -- SORT_QUERY_RESULTS |
| |
| CREATE TABLE DEST1_n170(key INT, value STRING) STORED AS TEXTFILE; |
| CREATE TABLE DEST2_n42(key INT, value STRING) STORED AS TEXTFILE; |
| |
| SET hive.exec.compress.intermediate=true; |
| SET hive.exec.compress.output=true; |
| |
| EXPLAIN |
| FROM SRC |
| INSERT OVERWRITE TABLE DEST1_n170 SELECT SRC.key, sum(SUBSTR(SRC.value,5)) GROUP BY SRC.key ORDER BY SRC.key limit 10 |
| INSERT OVERWRITE TABLE DEST2_n42 SELECT SRC.key, sum(SUBSTR(SRC.value,5)) GROUP BY SRC.key ORDER BY SRC.key limit 10; |
| |
| FROM SRC |
| INSERT OVERWRITE TABLE DEST1_n170 SELECT SRC.key, sum(SUBSTR(SRC.value,5)) GROUP BY SRC.key ORDER BY SRC.key limit 10 |
| INSERT OVERWRITE TABLE DEST2_n42 SELECT SRC.key, sum(SUBSTR(SRC.value,5)) GROUP BY SRC.key ORDER BY SRC.key limit 10; |
| |
| SELECT DEST1_n170.* FROM DEST1_n170; |
| SELECT DEST2_n42.* FROM DEST2_n42; |
