646b892680
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67 lines
1.7 KiB
Nix
67 lines
1.7 KiB
Nix
{
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cmake,
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fetchFromGitHub,
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lib,
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openssl,
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postgresql,
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postgresqlBuildExtension,
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postgresqlTestExtension,
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}:
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postgresqlBuildExtension (finalAttrs: {
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pname = "postgresql-lantern";
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version = "0.5.0";
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src = fetchFromGitHub {
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owner = "lanterndata";
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repo = "lantern";
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tag = "v${finalAttrs.version}";
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hash = "sha256-IsDD/um5pVvbzin8onf45DQVszl+Id/pJSQ2iijgHmg=";
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fetchSubmodules = true;
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};
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postPatch = ''
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patchShebangs --build lantern_hnsw/scripts/link_llvm_objects.sh
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'';
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nativeBuildInputs = [
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cmake
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];
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buildInputs = [
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openssl
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];
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cmakeFlags = [
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"-DBUILD_FOR_DISTRIBUTING=ON"
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"-S ../lantern_hnsw"
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];
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passthru.tests.extension = postgresqlTestExtension {
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inherit (finalAttrs) finalPackage;
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sql = ''
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CREATE EXTENSION lantern;
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CREATE TABLE small_world (id integer, vector real[3]);
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INSERT INTO small_world (id, vector) VALUES (0, '{0,0,0}'), (1, '{0,0,1}');
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CREATE INDEX ON small_world USING lantern_hnsw (vector dist_l2sq_ops)
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WITH (M=2, ef_construction=10, ef=4, dim=3);
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'';
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};
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meta = {
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# PostgreSQL 18 support issue upstream: https://github.com/lanterndata/lantern/issues/375
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# Check after next package update.
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broken = lib.warnIf (
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finalAttrs.version != "0.5.0"
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) "Is postgresql18Packages.lantern still broken?" (lib.versionAtLeast postgresql.version "18");
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description = "PostgreSQL vector database extension for building AI applications";
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homepage = "https://lantern.dev/";
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changelog = "https://github.com/lanterndata/lantern/blob/${finalAttrs.src.rev}/CHANGELOG.md";
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license = lib.licenses.agpl3Only;
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maintainers = [ ];
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platforms = postgresql.meta.platforms;
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};
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})
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