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Updated Preparation for update with database schema changes (markdown)

Aurora Lahtela 2022-04-10 09:39:14 +03:00
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Preparation-for-update-with-database-schema-changes.md

@ -7,6 +7,7 @@ If an update has backwards incompatible database schema changes it is mentioned
- Backup your database - Backup your database
- Stop all servers - Stop all servers
- Start one server with Plan and wait until Patching has completed (`"All database patches applied successfully."`) - Start one server with Plan and wait until Patching has completed (`"All database patches applied successfully."`)
- Start rest of the servers
If you need a rough estimate how long patching will take, you can run query `SELECT COUNT(*) as row_count FROM <table name mentioned in change log>` and estimate. If you need a rough estimate how long patching will take, you can run query `SELECT COUNT(*) as row_count FROM <table name mentioned in change log>` and estimate.
Patching the database usually takes ~1 second per 20000 rows of data. Patching the database usually takes ~1 second per 20000 rows of data.