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Link to comparison of transactional DDLs

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Dale Hui 2018-07-09 19:25:29 -07:00
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MIGRATIONS.md
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@ -52,8 +52,8 @@ files, and either leaving them empty or adding a comment as appropriate.
The format of the migration files themselves varies between database systems. The format of the migration files themselves varies between database systems.
Different databases have different semantics around schema changes and when and Different databases have different semantics around schema changes and when and
how they are allowed to occur (for instance, if schema changes can occur within how they are allowed to occur
a transaction). (for instance, [if schema changes can occur within a transaction](https://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis)).
As such, the `migrate` library has little to no checking around the format of As such, the `migrate` library has little to no checking around the format of
migration sources. The migration files are generally processed directly by the migration sources. The migration files are generally processed directly by the