Google BigTable and free text indexing

The BigTable article main example is storing web content in a big table. Is there an article discussing how do Google index the free text ? Would it be right to they use BigTable under the hood? Any information about the BigTable开发者_C百科 schema?

I don't think you can get the underlying schema. Big Table is built on top of GFS if you are lookin at file system level.

WEB SEARCH FOR A PLANET:THE GOOGLE CLUSTER ARCHITECTURE The section serving a Google query(page:23) gives you a generic idea of data is organised into buckets.