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@JonathanMagnan JonathanMagnan released this 17 Mar 00:01
· 12 commits to master since this release
v4.0.0
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  • BREAKING CHANGE: The option AllowDuplicateKeys is no longer enabled by default. This option was here since the first version, it has been working well for SQL Server but was always caused some trouble in some other provider such as SQLite. It was also slowing the bulk operations for all providers.

The AllowDuplicateKeys was allowing you to pass the entities multiple times in the same list. While this is very nice to have, this was causing some trouble for BulkInsert and BulkMerge when the key is empty (not set!) in some providers.

You can re-enable it globally with the following code:

BulkOperationManager.BulkOperationBuilder = builder => builder.AllowDuplicateKeys = true;

For a chaining action:

connection.UseBulkOptions(options => options.AllowDuplicateKeys = true).BulkInsert(list);

For a specific entity:

DapperPlusManager.Entity<EntitySimple>().UseBulkOptions(options => options.AllowDuplicateKeys = true);

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