feat(volc_mysql): add VolcMySQL backend with HNSW vector index support - #804
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/assign @XuanYang-cn |
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@FishMage Please fix the ut to pass the github actions |
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@FishMage THe code check still fails, PTAL |
Add a VectorDB backend for VolcMySQL (native VECTOR type and HNSW index) over the MySQL wire protocol via mysql-connector-python: - client, config, and Click CLI command; registered in the DB enum and CLI - per-thread connections (thread_safe=False, one connection per worker) - NonFilter and NumGE filter support via prepared SQL templates - binary float32 vector path with per-connection auto-probe fallback to to_vector() - unit tests for TSV encoding, config, filters, and init teardown
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: FishMage, XuanYang-cn The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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Add a vector database backend for VolcMySQL (Volcano Engine MySQL with native VECTOR type and HNSW vector index), connecting via mysql-connector-python over the MySQL wire protocol.
Components:
VolcMySQLHNSWRegistration:
Binary VECTOR path with auto-probe fallback:
_binaryintroducer on query), avoiding to_vector() text parsing and Python str() formatting;_binaryliterals stay constant-foldable so the HNSW index scan is preservedTests: tests/test_volc_mysql_encoder.py covers binary and text TSV encoding.