CheckForPagination looks for any of the pagination details in the given search request.

Value MUST be an object.

Sets collection information within the provided SearchRequest.

See also: cbgt.ExponentialBackoffLoop().

Return parameters: - query fields map - cbft SearchRequest - ctl timeout - knn - requires filtering - error.

ProcessIndexDef determines if an indexDef is supportable as an datastore.FTSIndex, especially by invoking ProcessIndexMapping().

ProcessIndexMapping currently checks the index mapping for two limited, simple cases of datastore.FTSIndex supportability..

DisallowedChars represents disallowed characters such as within type field names and docId prefixes.

Note only the landmark type mapping is enabled, as n1fty currently only supports a single enabled type mapping.

Types is a wrapper that allows for a nil (pointer) value that's distinct from an empty map[string]bool.