005.hive: str_to_map使用案例 | ApacheCN(apache中文网)
ApacheCN | apache中文网 使用说明： https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF map<string,string> str_to_map(text[, delimiter1, delimiter2]) Splits text into key-value pairs using two delimiters. Delimiter1 separates text into K-V pairs, and Delimiter2 splits each K-V pair. Default delimiters are ',' for delimiter1 and '=' for delimiter2. 案例1： hive> > select str_to_map('aaa:11&bbb:22', '&', ':') > from tmp.tmp_jzl_20140725_test11; OK {"bbb":"22","aaa":"11"} 案例2: hive> select str_to_map('aaa:11&bbb:22', '&', ':')['aaa'] > from tmp.tmp_jzl_20140725_test11; OK 11 来源： oschina 链接：