![]() In sqlite3, an INTEGER column is stored as a 64-bit integer. Be aware that BigInts have a higher overhead than ints, so we recommend using int64() only for columns where this is necessary: Here, representing integers as BigInt (and passing those to the underlying database implementation) ensures that you can store large intergers without any loss of precision. This is mainly useful for Dart apps compiled to JavaScript, where an int really is a double that can't store large integers without loosing information. BigInt supportĭrift supports the int64() column builder to indicate that a column stores large integers and should be mapped to Dart as a BigInt. If you want a custom mapping for JSON, you need to provide your own ValueSerializer. For instance, boolean values are expected as true or false in the fromJson factory, even though they would be saved as 0 or 1 in the database. They don't affect JSON serialization at all. Note that the mapping for boolean, dateTime and type converters only applies when storing records in the database. INTEGER (more information available here). INTEGER (default) or TEXT depending on options INTEGER, which a CHECK to only allow 0 or 1 INTEGER (useful for large values on the web) You can store custom classes in columns by using type converters. ![]() ![]() Effectively, this table has two unique key sets: (a) and (b, c).ĭrift supports a variety of column types out of the box. Details.Īs shown in the getting started guide, sql tables can be written in Dart: class Todos extends Table ] Drift's sql analyzer will generate matching Dart code. Prefer sql? If you prefer, you can also declare tables via CREATE TABLE statements.
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