This is a very very minimal search engine (it only allows searching for single terms) designed to test the feasibility of using IndexedDB as a full text search engine.

See the discussion at https://groups.google.com/a/chromium.org/forum/#!topic/storage-dev/0njGY5N6wRs

To test:

git clone git@github.com:superhuman/fts
cd fts
python -m SimpleHTTPServer 8090
open http://localhost:8090

see harness.js for the bencharmking code, and stemmer.js for a porter stemmer I found on the internet.

Still TODO:

Before this can be a reasonable test of a search engine we need to implement the following searches over indexeddb.

• queries for multiple terms: "conrad lunch"
• queries for terms in a field: "from:conrad"
• queries in a date range: "from:conrad before:X"
• queries with OR: "from:(conrad OR rahul)"
• queries with quotes: 'from:"conrad Irwin"'

It would also be nice to implement WebSQL's SNIPPET function.

Stretch goal

• can we literally port the whole of the Sqlite FTS3 module, maybe emscriptened, using IndexedDB as a page store?

Probably out of scope

• not using a porter stemmer (all of them are pretty equivalent in terms of performance, and it's easier to compare results with websql if you use the same stemmer).