Apache Presto - json_size(json, json_path)
查询
presto:default> SELECT json_size('{"a": [11, 12, 13]}', '$.a') as json;
json ------ 3
apache_presto_sql_functions.html
presto:default> SELECT json_size('{"a": [11, 12, 13]}', '$.a') as json;
json ------ 3
apache_presto_sql_functions.html
