Hi Xi, In case of SHOW FUNCTIONS it is an SQL like regular exception, i.e. '%' means any number of characters of any kind, and '_' means one character of any kind. In case of SHOW DATABASES though currently it is different, '*' means any number of characters of any kind, like in a glob.
I've created a jira (https://issues.apache.org/jira/browse/HIVE-23243) to fix that. Thank you for calling my attention to this issue. Miklos On Sun, Apr 19, 2020 at 9:54 AM Xi Chen <bargittac...@gmail.com> wrote: > Hi, > > I find that hive support pattern matching in several DDLs like > SHOW FUNCTIONS [LIKE "<pattern>"]; > SHOW DATABASES [LIKE "<pattern>"]; > > Does "pattern" mean any regular expression? Is there any spec of that? > I went through the language manual, but still didn't find any spec about > that. > > Thanks, > Bargitta > -- *Miklós Gergely* | Staff Software Engineer t. +36 (30) 579-6433 <0000000000> cloudera.com <https://www.cloudera.com/> [image: Cloudera] <https://www.cloudera.com/> [image: Cloudera on Twitter] <https://twitter.com/cloudera> [image: Cloudera on Facebook] <https://www.facebook.com/cloudera> [image: Cloudera on LinkedIn] <https://www.linkedin.com/company/cloudera> ------------------------------
