![]() ![]() The ones listed below are specific to Ecto usage, but it There are some limitations when using Ecto with SQLite that one needs Therefore, IDs stored as strings may be easier to work with if manual manipulation is required. Because SQLite does not have a dedicated UUID type, most clients cannot represent UUIDs stored as binary in a human.While IDs stored as binary only require 16 bytes. IDs stored as strings require 36 bytes each, When stored as binary, UUIDs require much less space in the database.The main differences between the two formats are as follows: :binary: IDs are stored in their raw binary form, and the type of the column is BLOB.:string (default): IDs are stored as strings, and the type of the column is TEXT.Well as the type of the column in which these IDs will be stored. The :binary_id_type configuration option allows configuring how :binary_id fields are stored in the database as These defaults can of course be overridden, as noted above, to suit other needs. :cache_size - we set it to -64000, to speed up access of data.:busy_timeout - we set it to 2000, to better enable concurrent access.SQLite usually defaults to :off for backwards compat. This is also the default of the underlying Exqlite driver. :foreign_keys - we set it to :on, for better relational guarantees.:temp_store - we use :memory, which increases performance a bit.:journal_mode - we use :wal, as it is vastly superiorįor concurrent access.We provide above that differ from the normal SQLite defaults, along with rationale. However, SQLite has conservative defaults due to its need to be strictly backwardsĬompatible, so some of them do not necessarily match "best practices". YYYY-MM-DDThh:mm:ss and :text_datetime corresponds to a string of the form YYYY-MM-DD hh:mm:ssįor more information about the options above, see sqlite documentationĭifferences-between-sqlite-and-ecto-sqlite-defaultsĭifferences between SQLite and Ecto SQLite defaultsįor the most part, the defaults we provide above match the defaults that SQLite usually :iso8601 corresponds to a string of the form The allowed values are :iso8601 and :text_datetime. Determines how datetime fields are stored in the database. :datetime_type - Defaults to :iso8601.Possible values andĬolumn types are the same as for binary IDs. See the section on binary ID types for more details. Determines how binary IDs are stored in the database and the type of :binary_id_type - Defaults to :string.:pool_size - the size of the connection pool.:busy_timeout - Sets the busy timeout in milliseconds for a connection.Negative value turns auto-checkpointing off. Setting the auto-checkpoint size to zero or a :wal_auto_check_point - Sets the write-ahead log auto-checkpoint.To overwrite records that were deleted with zeros. See sqlite documentation for more information. Depending on the database size, :incremental may be :case_sensitive_like - whether LIKE is case-sensitive or not.By default it is :on, and for most applications, it The pager to spill dirty cache pages to the database file in the middle ofĪ transaction. :cache_spill - The cache_spill pragma enables or disables the ability of.This isĪn odd setting as a positive value is the number of pages in memory to useĪnd a negative value is the size in kilobytes to use. :cache_size - Sets the cache size to be used for the connection.:foreign_keys - Sets if foreign key checks should be enforced or not.:synchronous - Can be :extra, :full, :normal, or :off.Allowed values are :default, :file, :memory. :temp_store - Sets the storage used for temporary tables.One of the following :delete, :truncate, :persist, :memory, :journal_mode - Sets the journal mode for the sqlite connection.The adapter supports a superset of the options provided by the It uses Exqlite for communicating to the database. Settings View Source 3 (Ecto SQLite3 v0.10.3)
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