// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// The query packages implement Vanadium's query capabilities.
//
// syncql:     This package is used by client's of a Vanadium
//             component that supports queries.
//             It includes:
//                 - ResultStream (which is the product of
//                   executing a query).
//                 - The error messages that could be returned
//                   from performing a query.
//                 - A function to parse an error to get the
//                   offset into a query that caused the error.
//             syncql does does not include the Exec function
//             as that must be provided by the component that
//             supports queries.
//
// engine:     This is the query engine.  A component that
//             supports queries calls the Exec function in this
//             package.
//
// datasource: This package contains the interfaces that a
//             Vanadium component must implement in order to
//             use the query engine.
//
// internal:   This is internal code which implements queries.
//             Its sole client is the engine package.
package query