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

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Yanqin Jin eee0af9af1 Add full_history_ts_low to column family (#7740) ... Summary: Following https://github.com/facebook/rocksdb/issues/7655 and https://github.com/facebook/rocksdb/issues/7657, this PR adds `full_history_ts_low_` to `ColumnFamilyData`. `ColumnFamilyData::full_history_ts_low_` will be used to create `FlushJob` and `CompactionJob`. `ColumnFamilyData::full_history_ts_low` is persisted to the MANIFEST file. An application can only increase its value. Consider the following case: > > The database has a key at ts=950. `full_history_ts_low` is first set to 1000, and then a GC is triggered > and cleans up all data older than 1000. If the application sets `full_history_ts_low` to 900 afterwards, > and tries to read at ts=960, the key at 950 is not seen. From the perspective of the read, the result > is hard to reason. For simplicity, we just do now allow decreasing full_history_ts_low for now. > During recovery, the value of `full_history_ts_low` is restored for each column family if applicable. Note that version edits in the MANIFEST file for the same column family may have `full_history_ts_low` unsorted due to the potential interleaving of `LogAndApply` calls. Only the max will be used to restore the state of the column family. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7740 Test Plan: make check Reviewed By: ltamasi Differential Revision: D25296217 Pulled By: riversand963 fbshipit-source-id: 24acda1df8262cd7cfdc6ce7b0ec56438abe242a		4 years ago
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db_impl.cc	Add blob support to DBIter (#7731)	4 years ago
db_impl.h	Add blob support to DBIter (#7731)	4 years ago
db_impl_compaction_flush.cc	Add full_history_ts_low to column family (#7740)	4 years ago
db_impl_debug.cc	Periodically flush info log out of application buffer (#7488)	4 years ago
db_impl_experimental.cc	Replace reinterpret_cast with static_cast_with_check (#7067)	4 years ago
db_impl_files.cc	Write min_log_number_to_keep to MANIFEST during atomic flush under 2 phase commit (#7570)	4 years ago
db_impl_open.cc	Add full_history_ts_low_ to FlushJob (#7655)	4 years ago
db_impl_readonly.cc	Add blob support to DBIter (#7731)	4 years ago
db_impl_readonly.h	RocksJava - Add errorIfLogFileExists parameter to RocksDB.openReadOnly (#7046)	4 years ago
db_impl_secondary.cc	Add blob support to DBIter (#7731)	4 years ago
db_impl_secondary.h	RocksJava - Add errorIfLogFileExists parameter to RocksDB.openReadOnly (#7046)	4 years ago
db_impl_write.cc	Fix assertion failure in bg flush (#7362)	4 years ago
db_secondary_test.cc	Fix assertion failure in bg flush (#7362)	4 years ago