code: func (c *CassandraStore) Search(ctx context.Context, key schema.AMKey, ttl, start, end uint32) ([]chunk.IterGen, error) {
  	table, ok := c.TTLTables[ttl]
  	if !ok {
  		return nil, errTableNotFound
  	}
  	return c.SearchTable(ctx, key, table, start, end)
  }
docs: // Basic search of cassandra in the table for given ttl
  // start inclusive, end exclusive