Jack 461c190c49 feat: migrate meta_filter and convert_conditions to Go (#15648) ...

## Summary

Migrate the metadata filtering utilities `meta_filter` and
`convert_conditions` from `common/metadata_utils.py` to Go as pure
functions with zero external dependencies.

These functions are used by `dify/retrieval`, `openai/chat/completions`,
`document_api`, and `chunk_api` for filtering documents by metadata
conditions.

### Changes

- **New**: `internal/common/metadata_utils.go` — `ConvertConditions()`
and `MetaFilter()` with full operator support
- **New**: `internal/common/metadata_utils_test.go` — 18 test cases
covering all operators and edge cases

### Supported Operators

`=`, `≠`, `>`, `<`, `≥`, `≤`, `contains`, `not contains`, `in`, `not
in`, `start with`, `end with`, `empty`, `not empty`

### Design

- Numeric comparison via `strconv.ParseFloat`
- Date comparison via YYYY-MM-DD format detection
- Case-insensitive string comparison fallback
- `and` / `or` logic support for multiple conditions
- Zero external dependencies — pure functions only

2026-06-04 20:14:27 +08:00

..

admin

Go: add ingestion server (#15094)

2026-05-25 14:00:08 +08:00

binding

feat: migrate DELETE /api/v1/datasets/:dataset_id/documents to Go (#15577)

2026-06-03 20:55:53 +08:00

cache

Go: move logger to common module (#14545)

2026-05-06 10:41:58 +08:00

cli

Go: fix gitee balance api (#15554)

2026-06-03 13:23:20 +08:00

common

feat: migrate meta_filter and convert_conditions to Go (#15648)

2026-06-04 20:14:27 +08:00

cpp

build(go): make bash build.sh work on macOS arm64 (Homebrew) (#15009)

2026-05-21 15:33:09 +08:00

dao

feat: implement GET /api/v1/agents/<agent_id>/versions API (#15629)

2026-06-04 15:36:26 +08:00

engine

Implement Elasticsearch functions in GO (#15160)

2026-05-25 19:15:07 +08:00

entity

Refactor[Go Model Provider]: refactor baseURL and modelConfig (#15627)

2026-06-04 17:50:22 +08:00

handler

feat: implement POST /api/v1/searchbots/related_questions API (#15639)

2026-06-04 19:13:58 +08:00

ingestion

Go: add ingestion server (#15094)

2026-05-25 14:00:08 +08:00

proto

Go: add ingestion server (#15094)

2026-05-25 14:00:08 +08:00

router

feat: implement POST /api/v1/searchbots/related_questions API (#15639)

2026-06-04 19:13:58 +08:00

server

Remove unused codes (#15579)

2026-06-03 17:35:36 +08:00

service

feat: implement GET /api/v1/agents/<agent_id>/versions/<version_id> API (#15640)

2026-06-04 19:13:26 +08:00

storage

Go: move logger to common module (#14545)

2026-05-06 10:41:58 +08:00

tokenizer

Go: move logger to common module (#14545)

2026-05-06 10:41:58 +08:00

utility

feat: add Go MCP server update API (#15261)

2026-06-02 15:58:44 +08:00

development.md

Implement Elasticsearch functions in GO (#15160)

2026-05-25 19:15:07 +08:00