thinking sphinx options

I'm confused, when should we use indexes and has method in 开发者_StackOverflow社区sphinx. I have a very vague and abstract idea about it.I was told for date range we use has method. But nowhere I could find a concrete explanation for this.

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The indexes method is for fields - and fields are the textual/string data that contain words you expect people to search for.

The has method is for attributes - which are mostly integers, floats, timestamps and boolean values, which are used by developers for sorting, filtering and grouping. If you want to filter for records given a date range, then an attribute is the best tool for the job.