### Description

Tracking total hits sometimes has a non-negligible impact on performance. We should disable it when not strictly required.
x-pack/plugin/sql/qa/server/single-node/src/javaRestTest/java/org/elasticsearch/xpack/sql/qa/single_node/CliExplainIT.java
assertThat(readLine(), startsWith("  \\_UnresolvedRelation[test]"));
        assertEquals("", readLine());
        assertThat(command("EXPLAIN " + (randomBoolean() ? "" : "(PLAN ANALYZED) ") + "SELECT COUNT(*) FROM test"), containsString("plan"));
        assertThat(readLine(), startsWith("----------"));
        assertThat(readLine(), startsWith("Aggregate[[],[COUNT(1[INTEGER]) AS COUNT(*)"));
        assertThat(readLine(), startsWith("\\_EsRelation[test][i{f}#"));
        assertEquals("", readLine());
        assertThat(command("EXPLAIN (PLAN OPTIMIZED) SELECT COUNT(*) FROM test"), containsString("plan"));
        assertThat(readLine(), startsWith("----------"));
        assertThat(readLine(), startsWith("Aggregate[[],[COUNT(1[INTEGER]) AS COUNT(*)"));
        assertThat(readLine(), startsWith("\\_EsRelation[test][i{f}#"));
        assertEquals("", readLine());
        assertThat(command("EXPLAIN (PLAN EXECUTABLE) SELECT COUNT(*) FROM test"), containsString("plan"));
        assertThat(readLine(), startsWith("----------"));
        assertThat(readLine(), startsWith("EsQueryExec[test,{"));
        assertThat(readLine(), startsWith("  \"size\" : 0,"));
        assertThat(readLine(), startsWith("  \"_source\" : false,"));
        assertThat(readLine(), startsWith("  \"sort\" : ["));
        assertThat(readLine(), startsWith("    {"));
        assertThat(readLine(), startsWith("      \"_doc\" :"));
        assertThat(readLine(), startsWith("        \"order\" : \"asc\""));
        assertThat(readLine(), startsWith("      }"));
        assertThat(readLine(), startsWith("    }"));
        assertThat(readLine(), startsWith("  ]"));
        assertThat(readLine(), startsWith("  \"track_total_hits\" : 2147483647"));
        assertThat(readLine(), startsWith("}]"));
        assertEquals("", readLine());
    }
}