### 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
private final String cluster;
        private final String name;
        private final IndexType type;
        public IndexInfo(String cluster, String name, IndexType type) {
            this.cluster = cluster;
            this.name = name;
            this.type = type;
        }
        public String cluster() {
            return cluster;
        }
        public String name() {
            return name;
        }
        public IndexType type() {
            return type;
        }
        @Override
        public String toString() {
            return buildRemoteIndexName(cluster, name);