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{
cmake,
fetchFromGitHub,
lib,
openssl,
postgresql,
postgresqlBuildExtension,
postgresqlTestExtension,
}:
postgresqlBuildExtension (finalAttrs: {
pname = "postgresql-lantern";
version = "0.5.0";
src = fetchFromGitHub {
owner = "lanterndata";
repo = "lantern";
tag = "v${finalAttrs.version}";
hash = "sha256-IsDD/um5pVvbzin8onf45DQVszl+Id/pJSQ2iijgHmg=";
fetchSubmodules = true;
};
postPatch = ''
substituteInPlace lantern_hnsw/CMakeLists.txt \
--replace-fail "cmake_minimum_required(VERSION 3.3)" "cmake_minimum_required(VERSION 3.10)"
patchShebangs --build lantern_hnsw/scripts/link_llvm_objects.sh
'';
nativeBuildInputs = [
cmake
];
buildInputs = [
openssl
];
cmakeFlags = [
"-DBUILD_FOR_DISTRIBUTING=ON"
"-S ../lantern_hnsw"
];
passthru.tests.extension = postgresqlTestExtension {
inherit (finalAttrs) finalPackage;
sql = ''
CREATE EXTENSION lantern;
CREATE TABLE small_world (id integer, vector real[3]);
INSERT INTO small_world (id, vector) VALUES (0, '{0,0,0}'), (1, '{0,0,1}');
CREATE INDEX ON small_world USING lantern_hnsw (vector dist_l2sq_ops)
WITH (M=2, ef_construction=10, ef=4, dim=3);
'';
};
meta = {
# PostgreSQL 18 support issue upstream: https://github.com/lanterndata/lantern/issues/375
# Check after next package update.
broken = lib.warnIf (
finalAttrs.version != "0.5.0"
) "Is postgresql18Packages.lantern still broken?" (lib.versionAtLeast postgresql.version "18");
description = "PostgreSQL vector database extension for building AI applications";
homepage = "https://lantern.dev/";
changelog = "https://github.com/lanterndata/lantern/blob/${finalAttrs.src.rev}/CHANGELOG.md";
license = lib.licenses.agpl3Only;
maintainers = [ ];
platforms = postgresql.meta.platforms;
};
})
|
