Metabase data source management and synchronization mechanism

There are 2 options for adding a database to metabase:

  1. Automatically run queries when doing simple filtering and summarizing
    When this is on, Metabase will automatically run queries when users do simple explorations with the Summarize and Filter buttons when viewing a table or chart. You can turn this off if querying this database is slow. This setting doesn’t affect drill-throughs or SQL queries.

  2. This is a large database, so let me choose when Metabase syncs and scans
    By default, Metabase does a lightweight hourly sync and an intensive daily scan of field values. If you have a large database, we recommend turning this on and reviewing when and how often the field value scans happen.

Option 1 is the fingerprint that updates the field when the relevant sql is executed: the maximum and minimum data distribution information, it is recommended to close it.

Option 2 is to set the synchronization information of database metadata and fingerprint. It can't be closed in 0.37.02, and the is_full_sync in the submitted json string remains unchanged.

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Origin blog.csdn.net/weixin_40455124/article/details/112856829