A port of Redimension to Redis Lua with a semi-Redis API. Developed 100% without a debugger.
- Indices always use a Sorted Set (for ranges) and a Hash (for id lookups).
- Can't index elements named _dim and _prec
- Can't deal with elements that have colons (':')
- Lua's integers are 32 bit, could lead to breakage somewhen (
2^exp...)
Use EVAL, EVALSHA or redis-cli --eval to run redimension.lua.
The script requires two key names and at least one argument, as follows:
- KEYS[1] - the index sorted set key
- KEYS[2] - the index hash key
- ARGV[1] - the command
Command may be one of the following:
- create - create an index with ARGV[2] as dimension and ARGV[3] as precision',
- drop - drops an index
- index - index an element ARGV[2] with ARGV[3]..ARGV[3+dimension] values
- unindex - unindex an element ARGV[2] with ARGV[3]..ARGV[3+dimension] values
- unindex_by_id - unindex an element by id ARGV[2]
- update - update an element ARGV[2] with ARGV[3]..ARGV[3+dimension] values
- query - query using ranges ARGV[2], ARGV[3]..ARGV[2+dimension-1], ARGV[2+dimension]
- fuzzy_test - fuzzily tests the library on ARGV[2] dimension with ARGV[3] items using ARGV[4] queries
Fuzzy-ish testing is implemented inline - use the fuzzy_test command to invoke.
Informal benchmarking can be found at: https://gist.github.com/itamarhaber/3d8c9741c545202925aa
The code is released under the BSD 2 clause license.