Skip to content

add warnings for user variables (#2993) #3007

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jun 23, 2020
Merged

add warnings for user variables (#2993) #3007

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions user-defined-variables.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,10 @@ aliases: ['/docs/v2.1/reference/sql/language-structure/user-defined-variables/']

# User-Defined Variables

> **Warning:**
>
> User-defined variables are still an experimental feature. It is **NOT** recommended that you use them in the production environment.

The format of the user-defined variables is `@var_name`. `@var_name` consists of alphanumeric characters, `_`, and `$`. The user-defined variables are case-insensitive.

The user-defined variables are session specific, which means a user variable defined by one client cannot be seen or used by other clients.
Expand Down