3 unstable releases
0.2.1 | Dec 28, 2018 |
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0.2.0 | Dec 27, 2018 |
0.1.0 | Dec 27, 2018 |
#2281 in Database interfaces
16KB
208 lines
Rust based postgres extension
The main things provided by this crate are some macros that help with writing Postgres extensions in Rust.
The objective (not all these are yet implemented):
- Automatic type conversions, see
PgDatum
andTryFromPgDatum
toInto<PgDatum>
pg_magic
macro for declaring libraries as Postgres extensionspg_extern
attribute for wrapping Rust functions in Postgres C style definitions- panic handlers for conversion into Postgres errors
- allocator that uses Postgres
palloc
allocator andpfree
- tbd integrate postgres error logs with
log
- tbd support all Datum types
- tbd support table like returns and manipulation
- tbd generators for the psql scripts to load functions
Building
First install Postgres. Once installed, this environment variable is required:
PG_INCLUDE_PATH=[/path/to/postgres]/include/server # e.g. /usr/local/pgsql/include/server
This environment variable is also required for the dynamic libraries to compile:
RUSTFLAGS="-C link-arg=-undefineddynamic_lookup"
This informs the linker that some of the symbols for postgres won't be available until runtime on the dynamic library load.
Examples
Dependencies
~0.2–3.5MB
~61K SLoC