Npgsql: Use EnableDynamicJson to unlock better container type mappings#777
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Vanilla Npgsql provides good enough support to handle CrateDB's ARRAY and OBJECT types better than just plain strings. This patch demonstrates type mappings to native .NET `List` and `Dictionary` types, as well as type mappings to custom .NET POCO types.
CrateDB's OBJECT data type can also be communicated using .NET's native `System.Text.Json.JsonDocument` type.
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kneth
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About
This patch resolves a few FIXME admonitions introduced by a recent patch that started to validate all of CrateDB's data types with Npgsql.
Npgsql.CrateDBinstead of vanillaNpgsql#776Details
Vanilla Npgsql provides good enough support to handle CrateDB's ARRAY and OBJECT types better than just plain strings. This patch demonstrates type mappings using three different variants:
System.Collections.Generic.ListandSystem.Collections.Generic.Dictionarytypes.System.Text.Json.JsonDocumenttype. 1 Thanks, @simonprickett.What's Inside
NpgsqlDbType.Jsonexplicitly where applicable, for example when communicating parameters usingAddWithValue().EnableDynamicJson()on theNpgsqlDataSourceBuilder, for POCO andDictionarymappings that didn't work before.What's Next
Include relevant information into a dedicated documentation page, in order to educate readers properly in the spirit of "seeing is believing".
Footnotes
Currently works with OBJECT for me, but not ARRAY. ↩