Re: [GSoC 2021 project summary] PL/Julia

Hi Konstantina,

Very cool! I was actually looking at doing this as we also have PL/R.

Dave Cramer

On Tue, 24 Aug 2021 at 04:26, Konstantina Skovola <konskov(at)gmail(dot)com> wrote:

> Hello hackers,
>
> Here is a summary of what was implemented over the summer in PL/Julia:
>
> 1. Added support for more datatypes as input and output:
> NULL, boolean, numeric types, composite types, arrays of base types can
> now be passed as input arguments to PL/Julia functions. Users can also
> return the above, or sets of the above from PL/Julia UDFs.
> 2. Added trigger support - users can write trigger functions in PL/Julia
> 3. Added event trigger support
> 4. Added support for the DO command
> 5. Added functions for database access from PL/Julia:
> spi_exec(query, limit) and spi_exec(query) for SQL-statement execution,
> spi_fetchrow(cursor) and spi_cursor_close(cursor) to return rows and to
> close the cursor respectively,
> spi_prepare(query, argtypes) to prepare and save an execution plan and
> spi_exec_prepared(plan, args, limit) to execute a previously prepared plan.
>
> A brief presentation of the above
>
> https://docs.google.com/presentation/d/1cTnsUWiH6o0YH6MlZoPLofna3eNT3P3r9HSL9Dyte5U/edit?usp=sharing
> Documentation with use examples
> https://gitlab.com/konskov/pljulia/-/blob/main/README.md
>
> Currently the extension works for version 13 and Julia versions >= 1.6
> (Thanks to Imre Samu for testing!)
>
> I hope you find it interesting.
>
> Regards,
> Konstantina
>