message: Add "URL query string" section
diff: @@ -16,6 +16,7 @@ See [LICENSE](LICENSE) file for licensing information.
  - [Installation](#installation)
  - [Configuration](#configuration)
  + - [URL query string](#url-query-string)
  - [Troubleshooting: driver manager tracing and driver logging](#troubleshooting-driver-manager-tracing-and-driver-logging)
  - [Building from sources](#building-from-sources)
  - [Appendices](#appendices)
  @@ -79,7 +80,7 @@ The list of DSN parameters recognized by the driver is as follows:
  | Parameter | Default value | Description |
  | :-----------------: | :----------------------------------------------------------------------------------------------------------------------: | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  -| `Url` | empty | URL that points to a running ClickHouse instance, may include username, password, port, database, etc. |
  +| `Url` | empty | URL that points to a running ClickHouse instance, may include username, password, port, database, etc. Also, see [URL query string](#url-query-string) |
  | `Proto` | deduced from `Url`, or from `Port` and `SSLMode`: `https` if `443` or `8443` or `SSLMode` is not empty, `http` otherwise | Protocol, one of: `http`, `https` |
  | `Server` or `Host` | deduced from `Url` | IP or hostname of a server with a running ClickHouse instance on it |
  | `Port` | deduced from `Url`, or from `Proto`: `8443` if `https`, `8123` otherwise | Port on which the ClickHouse instance is listening |
  @@ -95,6 +96,17 @@ The list of DSN parameters recognized by the driver is as follows:
  | `DriverLog` | `on` if `CMAKE_BUILD_TYPE` is `Debug`, `off` otherwise | Enable or disable the extended driver logging |
  | `DriverLogFile` | `\temp\clickhouse-odbc-driver.log` on Windows, `/tmp/clickhouse-odbc-driver.log` otherwise | Path to the extended driver log file (used when `DriverLog` is `on`) |
  +### URL query string
  +
  +Some of configuration parameters can be passed to the server as a part of the query string of the URL.
  +
  +The list of parameters in the query string of the URL that are also recognized by the driver is as follows:
  +
  +| Parameter | Default value | Description |
  +| :--------------: | :-----------: | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  +| `database` | `default` | Database name to connect to |
  +| `default_format` | `ODBCDriver2` | Default wire format of the resulting data that the server will send to the driver. Formats supported by the driver are: `ODBCDriver2` and `RowBinaryWithNamesAndTypes` |
  +
  ### Troubleshooting: driver manager tracing and driver logging
  To debug issues with the driver, first things that need to be done are:
  