### Description

This is to investigate what we could do to support the data streams in SQL. The backing indices can be queried already, but to address them similarly as they're queried over QDSL one would need to construct a pattern learned out of band and not through SQL metadata discovery mechanisms.
x-pack/plugin/ql/src/main/java/org/elasticsearch/xpack/ql/index/IndexResolver.java
if (ex instanceof IndexNotFoundException || ex instanceof ElasticsearchSecurityException) {
                    resolveIndices(
                        clusterWildcard,
                        indexWildcards,
                        javaRegex,
                        retrieveIndices,
                        retrieveFrozenIndices,
                        indexInfos,
                        listener
                    );
                } else {
                    listener.onFailure(ex);
                }
            }));
        } else {
            resolveIndices(clusterWildcard, indexWildcards, javaRegex, retrieveIndices, retrieveFrozenIndices, indexInfos, listener);
        }
    }
    private void resolveIndices(
        String clusterWildcard,
        String[] indexWildcards,
        String javaRegex,
        boolean retrieveIndices,
        boolean retrieveFrozenIndices,
        Set<IndexInfo> indexInfos,
        ActionListener<Set<IndexInfo>> listener
    ) {
        if (retrieveIndices || retrieveFrozenIndices) {
            if (clusterIsLocal(clusterWildcard)) { 
                GetIndexRequest indexRequest = new GetIndexRequest().local(true)