Database Properties
Database Type: PostgreSQL - 16.1 (Ubuntu 16.1-1.pgdg22.04+1)
Catalog mscmp_syst_instance
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Schema ms_syst_db
Datastore migrations management schema.
All member objects of this schema are considered “private”.
Direct usage of this schema or its member objects is not supported.
Tables
| Table / View | Children | Parents | Columns | Type | Comments |
|---|---|---|---|---|---|
| migrations | 0 | 0 | 14 | Table | Records which database updates have been applied to the system. General Usage Available database migrations are stored in a file system directory where individual files are named starting with the version number taking a fixed number of numeric digits. In the simple case, the migration process will get a sorted listing of available migrations from the migrations file system directory and compare the version of the file with the minimum version number not already checked against the maximum version applied to the database according to this table. If the file version is greater, the migration is applied to the database, otherwise the file is skipped and the version checking process repeats until there are no more migration files to evaluate. Finally, during the migration process, the ms_syst_db.migrations record is created once the corresponding migration file has been successfully applied to the database. Both the migration file and the ms_syst_db.migrations record should be processed in the same database transaction. |