fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Yi Wu d1b74b0c82 WritePrepared Txn: Compaction/Flush ... Summary: Update Compaction/Flush to support WritePreparedTxnDB: Add SnapshotChecker which is a proxy to query WritePreparedTxnDB::IsInSnapshot. Pass SnapshotChecker to DBImpl on WritePreparedTxnDB open. CompactionIterator use it to check if a key has been committed and if it is visible to a snapshot. In CompactionIterator: * check if key has been committed. If not, output uncommitted keys AS-IS. * use SnapshotChecker to check if key is visible to a snapshot when in need. * do not output key with seq = 0 if the key is not committed. Closes https://github.com/facebook/rocksdb/pull/2926 Differential Revision: D5902907 Pulled By: yiwu-arbug fbshipit-source-id: 945e037fdf0aa652dc5ba0ad879461040baa0320		7 years ago
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optimistic_transaction.cc	Update WritePrepared with the pseudo code	7 years ago
optimistic_transaction.h	Update WritePrepared with the pseudo code	7 years ago
optimistic_transaction_db_impl.cc	Refactor PessimisticTransaction	7 years ago
optimistic_transaction_db_impl.h	Change RocksDB License	7 years ago
optimistic_transaction_test.cc	Change RocksDB License	7 years ago
pessimistic_transaction.cc	WritePrepared Txn: Rollback	7 years ago
pessimistic_transaction.h	WritePrepared Txn: Rollback	7 years ago
pessimistic_transaction_db.cc	WritePrepared Txn: Compaction/Flush	7 years ago
pessimistic_transaction_db.h	WritePrepared Txn: Compaction/Flush	7 years ago
snapshot_checker.cc	WritePrepared Txn: Compaction/Flush	7 years ago
transaction_base.cc	Add TransactionDB::SingleDelete()	7 years ago
transaction_base.h	Add TransactionDB::SingleDelete()	7 years ago
transaction_db_mutex_impl.cc	Change RocksDB License	7 years ago
transaction_db_mutex_impl.h	Change RocksDB License	7 years ago
transaction_lock_mgr.cc	Added mechanism to track deadlock chain	7 years ago
transaction_lock_mgr.h	Added mechanism to track deadlock chain	7 years ago
transaction_test.cc	WritePrepared Txn: Recovery	7 years ago
transaction_test.h	WritePrepared Txn: Recovery	7 years ago
transaction_util.cc	Change RocksDB License	7 years ago
transaction_util.h	Change RocksDB License	7 years ago
write_prepared_transaction_test.cc	WritePrepared Txn: Compaction/Flush	7 years ago
write_prepared_txn.cc	WritePrepared Txn: duplicate keys	7 years ago
write_prepared_txn.h	WritePrepared Txn: Rollback	7 years ago