TerichDB is an open source NoSQL data store based on terark storage engine.

TerichDB is:

• Read optimized, faster than ever.
• Data is highly compressed and decompressed is not required before read.
• Use FSA and succinct technologies, totally different from B+ and LSM(Which is widely used in other data stores).
• Native support for regex expression query.
• Benchmark

• High Compression Ratio
  • Higher than snappy(2~5 times) and other database products, higher than gzip, sometimes higher than bzip
• Search Directly on Compressed Data without Decompression
  • Compressed data as index, index as compressed data
• Fast Access
  • Optimized for SSD and in-memory workloads
• Flexible Indexing
  • Multiple indexes on one table
  • Unique/non-unique index
  • Composite index(one index on multiple columns)
  • Ordered index (support range query)
• Native regular expression query
• Embeddable & Standalone Database
• Persistent
• Schema Based, with Rich Data Types
• Column Group
• Supported Platforms: Linux, Windows, Mac
• Transparent foundation for developers to build customized products

sudo wget https://raw.githubusercontent.com/Terark/terichdb/master/online_install.py && (python online_install.py; rm online_install.py)

windows installation guide

• libboost_system.so(1.63.0) (boost_1_63_0)
• libboost_filesystem(1.63.0)(Could be found in boost_1_63_0)
• libwiredtiger.so(v2.8.0)
• libtbb.so(tbb44_20160128)
• libgflags
• libsnappy
• libz
• libzstd

• Linux : g++-4.7, g++-4.8, g++-4.9, g++-5.3, g++-5.4, g++-6.1, g++-6.2
• Mac OS : g++-4.8, g++-4.9, g++-5.3, g++-6.0, g++-6.1, clang++-7.3
• Windows : vs2015

1. TerichDB is open source but our core data structures and algorithms(dfadb) are not yet.
2. dfadb is supported by a library named terark-fsa-* in our released packages.
3. Developers who want to build their own TerichDB, should place the terark-fsa-* library into their library search path(e.g. /usr/local/lib).
4. User compiled TerichDB can only uses limited APIs, and need to set "ReadonlySegmentClass" : "MockReadonlySegment" in dbmeta.json(TerichDB's schema file).

• UNIX fork() should not be called in the applications using TerichDB, this would cause undefined behaviors.

TerichDB follows Free Software Foundation's GNU AGPL v3.0

For commercial purposes, please contact us.