Couldn't retrieve Table List probably due to Characterset


Issue Summary

First of all, thank you for letting us to use this brilliant program.

I’ve installed Redash with Docker. Everything works fine only except retrieving schema list. When I connect to PostgreSQL where Redash’s metadata exists, table list are shown, like below:

However, when I tried to connect to Vertica, where some table names or column names are consist of Korean Character, I couldn’t see anything on Table List:

By the way, I have no problem to execute queries containing any non-ASCII character.
And When I used Hosted Redash ( for testing purpose, I can see all the Korean character in Table List section.

(I guessed the scanned schema information are stored in PostgreSQL DBMS, but I couldn’t find any related tables. Is this information exists in Redis? or just Python memories?)

Could you please give me an advise? Where can I find to solve this problem?

Thanks in advance.

Technical details:

  • Redash Version: 5.0.1.b4850 (I have same issue on 4.0.1)
  • Browser/OS: Host = Chrome / Ubuntu 16.04
  • How did you install Redash: Using Docker.
  • Docker: postgres container : LANG=“en_US.utf8”
  • Docker: redis container : LANG is not assigned
  • Docker: server container : LANG is not assigned