return me the number of papers by " H. V. Jagadish " .
SELECT COUNT ( DISTINCT t3.title ) FROM writes AS t2 JOIN author AS t1 ON t2.aid  =  t1.aid JOIN publication AS t3 ON t2.pid  =  t3.pid WHERE t1.name  =  "H. V. Jagadish";
SELECT COUNT ( DISTINCT t3.title ) FROM writes AS t2 JOIN author AS t1 ON t2.aid  =  t1.aid JOIN publication AS t3 ON t2.pid  =  t3.pid WHERE t1.name  =  "H. V. Jagadish";
[{'COUNT ( DISTINCT t3.title )': 0}]