This PR introduces the V1 interfaces for data and metadata access.
In PartiQL 0.x implementations, all packages depended on SPI for access to data and catalog information. With the additions of Datum and PType, we are flipping the dependency such that SPI depends upon the package-specific interfaces.
Current customers of partiql-lang-kotlin (eval) use the lang.eval.Bindings and lang.eval.ExprValue interfaces which are inside of the lang.eval package. However, there is not an equivalent metadata layer. We initially used Trino's SPI approach to the metadata layer (early 2023), but it results in two disparate extension models. This PR is an effort to extend the existing partiql-lang-kotlin model to include metadata while defining the SPI as a layer on top of both eval.Bindings and planner.Metadata. The end result is to make the changes from 0.x to 1.0 more of an extension to current models rather than a different design approach altogether.
Relevant Issues
https://github.com/partiql/partiql-lang-kotlin/issues/1496
Description
This PR introduces the V1 interfaces for data and metadata access.
In PartiQL 0.x implementations, all packages depended on SPI for access to data and catalog information. With the additions of Datum and PType, we are flipping the dependency such that SPI depends upon the package-specific interfaces.
Current customers of partiql-lang-kotlin (eval) use the lang.eval.Bindings and lang.eval.ExprValue interfaces which are inside of the lang.eval package. However, there is not an equivalent metadata layer. We initially used Trino's SPI approach to the metadata layer (early 2023), but it results in two disparate extension models. This PR is an effort to extend the existing partiql-lang-kotlin model to include metadata while defining the SPI as a layer on top of both eval.Bindings and planner.Metadata. The end result is to make the changes from 0.x to 1.0 more of an extension to current models rather than a different design approach altogether.
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License Information
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