Hi guys. When I recently used flink sql to manage internal metadata (catalog/databases/table/functions), I found that many current flink sql statements do not support filtering or some advanced syntax, however these abilities are very useful to end-users.
These are some statements I have collected so far, which are supported on other big data engines, such as spark, hive or presto. I wonder if we can support these abilities? In addition, the subject of this email is named 'Auxiliary Statements' mainly because the alignment of these statements will not have much impact on the core SQL runtime. Support or Not With Advanced Syntax Or Not (in/from or like) show create table Yes Yes show tables Yes Yes show columns Yes Yes show catalogs Yes without filter show databases Yes without filter show functions Yes without filter show views Yes without filter show modules Yes without filter show jars Yes without filter show jobs Yes without filter We can see current flink many sql statements only support showing with full datas, without 'FROM/IN' or 'LIKE' filter clause. Support or Not describe database No describe table Yes describe function No describe query No current flink only supports describing tables. Also, please let me know if there is a mistake. Looking forward to your reply. Best Regards, Ran Tao https://github.com/chucheng92
