| set hive.mapred.mode=nonstrict; |
| |
| set hive.support.quoted.identifiers=column; |
| |
| set hive.optimize.skewjoin.compiletime = true; |
| |
| CREATE TABLE T1_n46(`!@#$%^&*()_q` string, `y&y` string) |
| SKEWED BY (`!@#$%^&*()_q`) ON ((2)) STORED AS TEXTFILE |
| ; |
| |
| LOAD DATA LOCAL INPATH '../../data/files/T1.txt' INTO TABLE T1_n46; |
| |
| CREATE TABLE T2_n28(`!@#$%^&*()_q` string, `y&y` string) |
| SKEWED BY (`!@#$%^&*()_q`) ON ((2)) STORED AS TEXTFILE |
| ; |
| |
| LOAD DATA LOCAL INPATH '../../data/files/T1.txt' INTO TABLE T2_n28; |
| |
| -- a simple join query with skew on both the tables on the join key |
| -- adding a order by at the end to make the results deterministic |
| |
| EXPLAIN |
| SELECT a.*, b.* FROM T1_n46 a JOIN T2_n28 b ON a. `!@#$%^&*()_q` = b. `!@#$%^&*()_q` |
| ; |
| |
