)]}' { "commit": "d2ba6d0d1493a5f82d05f1f357936063a9446e7b", "tree": "b2967219399f26e1aa495f4b10dfc6f9f37ebef4", "parents": [ "2a4a79b37ad30c8b9dc43f05604995bf28ee97ad" ], "author": { "name": "Charles Givre", "email": "cgivre@apache.org", "time": "Sat Aug 01 23:35:52 2026 -0700" }, "committer": { "name": "Charles Givre", "email": "cgivre@apache.org", "time": "Sat Aug 01 23:43:24 2026 -0700" }, "message": "DRILL-8552: Add Storage Plugin for Apache Accumulo\n\nThis PR introduces a new storage plugin for Apache Accumulo, enabling\nDrill to query Accumulo tables using standard SQL.\n\nFeatures:\n- Full SQL query support for Accumulo tables\n- Dynamic schema discovery (column families as MAPs)\n- Filter pushdown (row key ranges to Accumulo Range scans)\n- Projection pushdown (column family/qualifier selection)\n- Limit pushdown (early scan termination)\n- Sort pushdown (ORDER BY row_key uses natural ordering)\n\nAuthentication modes:\n- PASSWORD: Username/password authentication\n- KERBEROS + SHARED_USER: Service principal for all queries\n- KERBEROS + USER_IMPERSONATION: Delegation tokens for per-user identity\n- USER_TRANSLATION: Per-user Accumulo credentials from CredentialsProvider\n\nKey components:\n- AccumuloStoragePlugin/Config: Plugin configuration and lifecycle\n- AccumuloConnectionManager: Centralized auth and client management\n- AccumuloGroupScan/SubScan: Distributed scan planning\n- AccumuloRecordReader: Data reading and vector population\n- AccumuloPushFilterIntoScan: Filter pushdown optimizer rule\n- AccumuloPushSortIntoScan: Sort pushdown optimizer rule\n- DelegationTokenInfo: Serializable token wrapper for distributed execution\n\nTested with Accumulo 2.1.4 LTS.\n\nCo-Authored-By: Claude Opus 4.5 \u003cnoreply@anthropic.com\u003e\n", "tree_diff": [ { "type": "modify", "old_id": "d84f7c26850a9d898c9483c8d5e3afa244e72cec", "old_mode": 33188, "old_path": "contrib/pom.xml", "new_id": "81875426b52b60fde9e5b4ab31b9dec29cce27e1", "new_mode": 33188, "new_path": 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