MySQL

Connect

Use -u param to set username, use -p to indicate password. Be sure to replace greptime_user(username) and greptime_pwd(password) with your own username and password:

shell

  1. ❯ mysql -h 127.0.0.1 -P 4002 -u greptime_user -p
  2. Enter password:
  3. Welcome to the MySQL monitor.  Commands end with ; or \g.
  4. Your MySQL connection id is 8
  5. Server version: 5.1.10-alpha-msql-proxy Greptime
  7. Copyright (c) 2000, 2023, Oracle and/or its affiliates.
  9. Oracle is a registered trademark of Oracle Corporation and/or its
  10. affiliates. Other names may be trademarks of their respective
  11. owners.
  13. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
  15. mysql>

Time Zone

GreptimeDB’s MySQL protocol interface follows original MySQL server on how to deal with time zone.

By default, MySQL uses its server time zone for timestamp. To override, you can set time_zone variable for current session using SQL statement SET time_zone = 'UTC';. The value of time_zone can be any of:

  • The server’s time zone: SYSTEM.
  • Offset to UTC such as +08:00.
  • Any named time zone like Europe/Berlin.

A few MySQL clients like Grafana MySQL data source allows you to set time zone for current session. It is also possible to check time_zone variable for current session by SQL statement SELECT @@time_zone;.

HTTP API

GreptimeDB supports sending SQL statements through HTTP API. For information on how to set up authentication, please refer to HTTP API.

Write Data

Please refer to SQL.

Query Data

Please refer to SQL.