摘要:
regexp_extract(filed,('aaa|bbb|ccc|ddd'),0) 从字段filed中提取含有aaa或bbb或ccc或ddd的string信息 阅读全文
摘要:
SET hive.execution.engine = tez;SET hive.tez.auto.reducer.parallelism = true;SET hive.auto.convert.join = true;set hive.exec.compress.output = true;se 阅读全文