feat: v5-native filter system — complete rewrite with declarative API, full test coverage, and new plugins

[pyramation]

feat: v5-native filter system — complete rewrite with declarative API, tests, and new plugins

Summary

Replaces the upstream v4-ported postgraphile-plugin-connection-filter with a from-scratch v5-native implementation and migrates the entire filter stack to a declarative operator API. This is the combined work of 11 incremental PRs (#797–#812) squashed into a single merge.

Core changes:

• New graphile-connection-filter package (~2,000 lines): scalar operators, logical operators (and/or/not), relation filters, computed column filters, array filters, pattern matching, all built on v5 behavior system
• Declarative connectionFilterOperatorFactories API: replaces imperative addConnectionFilterOperator. Satellite plugins declare operators in their preset config instead of mutating build state at runtime
• condition → filter migration: all GraphQL queries (including send-email-link function) migrated off condition:
• PostGIS filter consolidation: graphile-plugin-connection-filter-postgis merged into graphile-postgis
• New graphile-trgm plugin: pg_trgm fuzzy text matching with similarTo/wordSimilarTo filter operators and similarity scoring
• Package renames — all plugin packages renamed to match their underlying algorithm:
  • graphile-search-plugin → graphile-tsvector
  • graphile-pg-textsearch-plugin → graphile-bm25
  • graphile-pg-trgm-plugin → graphile-trgm
  • graphile-pgvector-plugin → graphile-pgvector
• Field naming convention refactor: All generated GraphQL field names now follow {column}{Algorithm}{Metric} pattern with algorithm deduplication
  • bm25: bm25BodyScore → bodyBm25Score, BM25_BODY_SCORE_ASC → BODY_BM25_SCORE_ASC
  • tsvector: bodyRank → bodyTsvRank, BODY_RANK_ASC → BODY_TSV_RANK_ASC
  • trgm: nameSimilarity → nameTrgmSimilarity, SIMILARITY_NAME_ASC → NAME_TRGM_SIMILARITY_ASC
  • pgvector: embeddingDistance → embeddingVectorDistance, EMBEDDING_DISTANCE_ASC → EMBEDDING_VECTOR_DISTANCE_ASC
  • Filter input fields keep {algorithm}{Column} pattern (e.g. bm25Body)
  • Deduplication: When column names already end with the algorithm suffix (e.g. full_text_tsv), the suffix is not duplicated in generated names (e.g. fullTextTsvRank not fullTextTsvTsvRank)
• Integration test suite: mega query exercising BM25 + tsvector + PostGIS + pgvector + trgm + relation filters simultaneously
• CI image: pyramation/postgres:17 → ghcr.io/constructive-io/docker/postgres-plus:18

Test coverage: 84 runtime tests in connection-filter (scalar ops, array ops, negation, string ops, declarative factory, edge cases) + 35 integration tests in graphile-settings.

Updates since last revision

Schema snapshot fix (latest):

• Fixed remaining SIMILARITY_EMAIL_ASC/SIMILARITY_EMAIL_DESC orderBy enums → EMAIL_TRGM_SIMILARITY_ASC/EMAIL_TRGM_SIMILARITY_DESC in the schema snapshot file. This was the last CI-blocking snapshot mismatch — all 42/42 checks now pass.

Field naming convention refactor (previous):

• Score fields: Changed from {algorithm}{Column}{Metric} to {column}{Algorithm}{Metric} pattern (e.g. bm25BodyScore → bodyBm25Score)
• OrderBy enums: Changed from {ALGORITHM}_{COLUMN}_{METRIC} to {COLUMN}_{ALGORITHM}_{METRIC} pattern (e.g. BM25_BODY_SCORE_ASC → BODY_BM25_SCORE_ASC)
• Filter inputs: Unchanged — still use {algorithm}{Column} pattern (e.g. bm25Body) to group related search operators
• Deduplication logic: All inflection methods now check if the column/field name already ends with the algorithm name (case-insensitive) and avoid duplicating the suffix
• trgm filterPrefix option: Added configurable filterPrefix option to TrgmSearchPluginOptions interface (defaults to 'trgm')
• Updated all test files: Used bulk sed replacements to update all field name references in bm25-search.test.ts, trgm-search.test.ts, vector-search.test.ts, and preset-integration.test.ts
• Updated READMEs and comments: Fixed GraphQL query examples and source code comments to use new field names

Doc & naming consistency fixes (earlier):

• GRAPHILE.md: Added missing package entries for graphile-bm25, graphile-trgm, and graphile-connection-filter with descriptions
• bm25 conditionPrefix → filterPrefix: Renamed the plugin option in types.ts, bm25-search.ts, preset.ts, and the test file. This is a breaking change to the Bm25SearchPluginOptions interface — any code passing conditionPrefix will now silently fall back to the 'bm25' default
• bm25 README: Updated all GraphQL examples from condition: to filter:, changed "Condition fields" → "Filter fields" in feature list
• tsvector README: Updated GraphQL example from condition: to filter:

Package renames (earlier): Renamed 4 plugin directories and updated all package.json name fields, TypeScript imports in graphile-settings (constructive-preset.ts, plugins/index.ts), CI workflow matrix entries, README docs, source code JSDoc comments, and GRAPHILE.md. CHANGELOG.md files intentionally left unchanged (historical). pnpm install regenerated the lockfile and pnpm build passes clean.

Review & Testing Checklist for Human

⚠️ High-risk items (must verify):

• Generated field name breaking changes — ALL GraphQL queries using the old score field names (bm25BodyScore, nameSimilarity, embeddingDistance, bodyRank) or orderBy enums (BM25_BODY_SCORE_ASC, SIMILARITY_NAME_DESC, etc.) will break immediately. Search ALL consumer codebases (internal apps, client queries, generated types) for these old names and update them. No deprecation warnings were added. This affects every query that uses search/scoring plugins.

• Deduplication edge cases — The dedup logic uses case-insensitive .endsWith() checks. Verify this doesn't cause false positives for columns like mybm25 (would incorrectly trigger bm25 dedup) or embedding_vector (would incorrectly trigger pgvector dedup). Test with real schema column names to ensure dedup only applies to genuine algorithm suffix columns like full_text_tsv or body_bm25.

• README feature list inconsistencies — The BM25 README feature list bullet points (lines showing "Score fields" and "OrderBy") were NOT updated to match the new naming convention. They still show old patterns like bm25<Column>Score and BM25_<COLUMN>_SCORE_ASC/DESC instead of <column>Bm25Score and <COLUMN>_BM25_SCORE_ASC/DESC. The query examples are correct but the feature descriptions are wrong. Similar issue may exist in other plugin READMEs.

• Bulk sed replacement accuracy — All field name changes were done with sed find-and-replace across 11 files. Manually audit at least one test file (e.g. bm25-search.test.ts) to verify the replacements were contextually correct and didn't over-match strings that shouldn't have been changed (e.g. test descriptions, variable names that happened to contain the old field names).

• Package rename completeness — Verify no stale references to old package names (graphile-search-plugin, graphile-pg-textsearch-plugin, graphile-pg-trgm-plugin, graphile-pgvector-plugin) remain in any TypeScript imports, package.json dependencies, or CI config. Grep the repo excluding CHANGELOG.md, pnpm-lock.yaml, and node_modules/. Any missed reference will cause build or runtime failures.

🟡 Medium-risk items:

• conditionPrefix → filterPrefix breaking change — The bm25 plugin option was renamed. Any external code (other repos, consumer apps) that passes { conditionPrefix: 'custom' } to createBm25SearchPlugin() will silently ignore the option and fall back to the 'bm25' default. Search for any usage of this option in consumer codebases and update them. No deprecation warning was added.

• connectionFilterAllowEmptyObjectInput removal — This option was removed in favor of applyPlan-level handling. If any downstream code (outside this repo) depended on setting this to false, it will break. Search for any references to this option in consumer apps.

• condition deprecation impact — All queries in this repo migrated to filter:, but external consumers (other repos, client apps) that use condition: will break. No deprecation warnings were added. Document the breaking change and plan a migration guide.

• Breaking change: package renames — Any code importing by the old package names (graphile-search-plugin, etc.) will break immediately. No re-export aliases were added. Consumers must update imports. Verify the lockfile correctly maps new workspace package names to the renamed directories.

• Filter input naming pattern preservation — Verify that filter inputs still use the {algorithm}{Column} pattern (e.g. bm25Body, trgmName) as intended, and the refactor only affected score/orderBy naming. Test a query with filter inputs to ensure they still work and match the convention documented in READMEs.

Testing plan:

1. Local test run: Set up local Postgres with PostGIS + pgvector + pg_trgm extensions, run pnpm test in graphile/graphile-connection-filter and graphile/graphile-settings
2. GraphQL playground smoke test: Start dev server, run the mega query from graphile/graphile-settings/__tests__/integration.test.ts:126-174 with the NEW field names and verify results match expected
3. Schema introspection: Query __type(name: "ItemFilter") and verify all expected operators appear, then query __type(name: "Article") and verify score field names follow new pattern (e.g. bodyBm25Score not bm25BodyScore)
4. Package resolution verification: Run pnpm list graphile-tsvector graphile-bm25 graphile-trgm graphile-pgvector to confirm workspace packages resolve to the renamed directories
5. Breaking change audit: Search codebase for condition: usage, old field names (bm25BodyScore, nameSimilarity), old enum names (BM25_BODY_SCORE_ASC), old package names, conditionPrefix option usage, and connectionFilterAllowEmptyObjectInput
6. Dedup logic verification: Test queries with columns that have algorithm suffixes (e.g. full_text_tsv) and verify generated field names don't double the suffix (e.g. should be fullTextTsvRank not fullTextTsvTsvRank)

Notes

• The old graphile-plugin-connection-filter-postgis package is deleted (merged into graphile-postgis)
• The pnpm-lock.yaml diff is mostly formatting churn (pnpm version bump) — actual dependency changes are minimal
• Seven dead directories exist in graphile/ (graphile-i18n, graphile-many-to-many, graphile-meta-schema, graphile-pg-type-mappings, graphile-plugin-connection-filter, graphile-plugin-fulltext-filter, graphile-simple-inflector) — these are just local build artifacts (dist/, node_modules/), not tracked in git
• The isLongerThan custom operator test uses build.dataplanPg.TYPES.int and build.sql — if these property paths ever change in PostGraphile core, operators will silently fail to register
• Package renames, conditionPrefix → filterPrefix change, and field name convention changes are breaking changes for any external consumers. CHANGELOG updates and npm publish will need to reflect the new package names, option names, and generated field names.
• The field naming convention was designed to be self-documenting (bodyBm25Score clearly shows it's the BM25 score of the body column) and avoid collisions between different algorithms on the same column
• Filter inputs intentionally keep the {algorithm}{Column} pattern to group related search operators together in the schema (e.g. all BM25 filters start with bm25)

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Requested by: @pyramation

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