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

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Phani Shekhar Mantripragada 446b32cfc3 Support for Column family specific paths. ... Summary: In this change, an option to set different paths for different column families is added. This option is set via cf_paths setting of ColumnFamilyOptions. This option will work in a similar fashion to db_paths setting. Cf_paths is a vector of Dbpath values which contains a pair of the absolute path and target size. Multiple levels in a Column family can go to different paths if cf_paths has more than one path. To maintain backward compatibility, if cf_paths is not specified for a column family, db_paths setting will be used. Note that, if db_paths setting is also not specified, RocksDB already has code to use db_name as the only path. Changes : 1) A new member "cf_paths" is added to ImmutableCfOptions. This is set, based on cf_paths setting of ColumnFamilyOptions and db_paths setting of ImmutableDbOptions. This member is used to identify the path information whenever files are accessed. 2) Validation checks are added for cf_paths setting based on existing checks for db_paths setting. 3) DestroyDB, PurgeObsoleteFiles etc. are edited to support multiple cf_paths. 4) Unit tests are added appropriately. Closes https://github.com/facebook/rocksdb/pull/3102 Differential Revision: D6951697 Pulled By: ajkr fbshipit-source-id: 60d2262862b0a8fd6605b09ccb0da32bb331787d		7 years ago
..
cf_options.cc	Support for Column family specific paths.	7 years ago
cf_options.h	Support for Column family specific paths.	7 years ago
db_options.cc	Make DBOption compaction_readahead_size dynamic	7 years ago
db_options.h	Make DBOption compaction_readahead_size dynamic	7 years ago
options.cc	Level Compaction with TTL	7 years ago
options_helper.cc	Support for Column family specific paths.	7 years ago
options_helper.h	DB::DumpSupportInfo should log all supported compression types	7 years ago
options_parser.cc	Comment out unused variables	7 years ago
options_parser.h	WritePrepared Txn: Optimize for recoverable state	7 years ago
options_sanity_check.cc	Change RocksDB License	7 years ago
options_sanity_check.h	Change RocksDB License	7 years ago
options_settable_test.cc	Support for Column family specific paths.	7 years ago
options_test.cc	RocksDBOptionsParser::Parse()'s `ignore_unknown_options` argument only ingores options from higher version.	7 years ago