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Distributed in memory multi-model (vector, relational, graph, temporal) database management system that uses Datalog for query. https://fluidb.ru
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Ziyang Hu 921ce4d7ad use while let 2 years ago
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README.md

Build

First build static lib for RocksDB

cd rocksdb
USE_RTTI=1 DEBUG_LEVEL=0 make static_lib

Edge key layout

  • Different src/tgt
    • Forward [true, src_keys, null, tgt_keys]
    • Backward [false, src_keys, null, tgt_keys]
  • Same src/tgt
    • Forward [null, src_keys, true, tgt_keys]
    • Backward [null, src_keys, false, tgt_keys]

Isolation levels

  • Read uncommitted: write to the raw DB
  • Read committed: use transaction
  • Repeatable read: use snapshot
  • Serializable: do all reads with GetForUpdate