Frozen indices are deprecated which makes all the [SQL features supporting frozen indices](https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-index-frozen.html) obsolete.

This includes:

* `index_include_frozen` request parameter in the `_sql` endpoint
* `index.include.frozen` (J|O)DBC driver settings
* `SHOW TABLES INCLUDE FROZEN` queries and the `FROZEN INDEX` kind in the corresponding response
* The `FROZEN` modifier in `FROM` clauses (as in `SELECT * FROM FROZEN archive`)

`_search` raises a deprecation warning when frozen indices are being searched with `ignore_throttled=false`. SQL could do the same when the `index_include_frozen` request parameter is set or when the `FROZEN` keyword is used.

Relates to https://github.com/elastic/elasticsearch/issues/70192
x-pack/plugin/sql/sql-action/src/main/java/org/elasticsearch/xpack/sql/action/SqlQueryRequest.java
}
    private String cursor = "";
    /*
     * Using the Boolean object here so that SqlTranslateRequest to set this to null (since it doesn't need a "columnar" or
     * binary parameter).
     * See {@code SqlTranslateRequest.toXContent}
     */
    private Boolean columnar = Protocol.COLUMNAR;
    private Boolean binaryCommunication = Protocol.BINARY_COMMUNICATION;
    private boolean fieldMultiValueLeniency = Protocol.FIELD_MULTI_VALUE_LENIENCY;
    private boolean indexIncludeFrozen = Protocol.INDEX_INCLUDE_FROZEN;
    
    private TimeValue waitForCompletionTimeout = DEFAULT_WAIT_FOR_COMPLETION_TIMEOUT;
    private boolean keepOnCompletion = DEFAULT_KEEP_ON_COMPLETION;
    private TimeValue keepAlive = DEFAULT_KEEP_ALIVE;
    public SqlQueryRequest() {
        super();
    }
    public SqlQueryRequest(
        String query,
        List<SqlTypedParamValue> params,
        QueryBuilder filter,
        Map<String, Object> runtimeMappings,
        ZoneId zoneId,
        String catalog,
        int fetchSize,
        TimeValue requestTimeout,
        TimeValue pageTimeout,
        Boolean columnar,
        String cursor,