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

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Jay Zhuang a3acf2ef87 Add seqno to time mapping (#10338) ... Summary: Which will be used for tiered storage to preclude hot data from compacting to the cold tier (the last level). Internally, adding seqno to time mapping. A periodic_task is scheduled to record the current_seqno -> current_time in certain cadence. When memtable flush, the mapping informaiton is stored in sstable property. During compaction, the mapping information are merged and get the approximate time of sequence number, which is used to determine if a key is recently inserted or not and preclude it from the last level if it's recently inserted (within the `preclude_last_level_data_seconds`). Pull Request resolved: https://github.com/facebook/rocksdb/pull/10338 Test Plan: CI Reviewed By: siying Differential Revision: D37810187 Pulled By: jay-zhuang fbshipit-source-id: 6953be7a18a99de8b1cb3b162d712f79c2b4899f		2 years ago
..
cf_options.cc	Add seqno to time mapping (#10338)	2 years ago
cf_options.h	Add seqno to time mapping (#10338)	2 years ago
configurable.cc	Option type info functions (#9411)	3 years ago
configurable_helper.h	Fix some minor issues in the Customizable infrastructure (#8566)	3 years ago
configurable_test.cc	Remove own ToString() (#9955)	3 years ago
configurable_test.h	Move RegisterOptions into the Configurable API (#8223)	4 years ago
customizable.cc	Option type info functions (#9411)	3 years ago
customizable_test.cc	Added GetFactoryCount/Names/Types to ObjectRegistry (#9358)	3 years ago
db_options.cc	Dynamically changeable `MemPurge` option (#10011)	2 years ago
db_options.h	Dynamically changeable `MemPurge` option (#10011)	2 years ago
options.cc	Add seqno to time mapping (#10338)	2 years ago
options_helper.cc	Add seqno to time mapping (#10338)	2 years ago
options_helper.h	New backup meta schema, with file temperatures (#9660)	3 years ago
options_parser.cc	fix a false positive case of parsing table factory from options file (#10094)	2 years ago
options_parser.h	Bring the Configurable options together (#5753)	4 years ago
options_settable_test.cc	Add seqno to time mapping (#10338)	2 years ago
options_test.cc	Dynamically changeable `MemPurge` option (#10011)	2 years ago