[feat] support postgres

[yihong0618]

Maybe we can support postgres (version 11+) like mysql

I think I can open a PR to support this.
but I am not sure we can get the return value like #44 will take a try.

[cfc4n]

of course. you can add this feature with a new PR like
https://github.com/ehids/ecapture/blob/656a3a5939f8df05a9dc915a18007283c34127cc/kern/mysqld_kern.c#L155-L158

and ref https://github.com/mysql/mysql-server/blob/c94ce787737f9a6c9a31abe22bee02866698885b/sql/sql_parse.h#L93