我想创建一个简历，如下所示：
CREATE CONTINUOUS view v_struct1_abonormal AS(
select data_value from stream_struct1 where exists(
select 1 from stream_struct1 s,jsonb_each_text(data_value->'metrics') j where nullif(j.value,'')::numeric >100000 or nullif(j.value,'')::numeric <0)
)
;
当我将数据插入流时，将不会捕获等于“-1”的值。
INSERT INTO stream_struct1 VALUES('{"data_time":"2018-05-23 18:10:00","mn_code":"06057581403003","metrics":{"CW011":"5.00000","ZJ101":"-1","ZJ011":"5.00000"}}');
但是，如果我将数据插入表中，则以下SQL可以正常工作。
select data_value from struct1 where exists(
select 1 from struct1 s,jsonb_each_text(data_value->'metrics') j where nullif(j.value,'')::numeric >100000 or nullif(j.value,'')::numeric <0);
CV是否支持exists子查询？
BTW：我的JSON数据结构如下：
{
"mn_code":"06057582401042",
"data_time":"20180228110759",
"metrics":{
"lg":null,
"lgd":null,
"lt":null,
"ltd":4,
"spd":0,
"bv":12.00,
"kpm25":35,
"kpm10":47,
"kb03":51,
"kw01":24.84,
"ks01":63.42,
"kp01":1015.27
},
"status":{
"lg":"N",
"lgd":"N",
"lt":"N",
"ltd":"N",
"spd":"N",
"bv":"N",
"kpm25":"N",
"kpm10":"N",
"kb03":"N",
"kw01":"N",
"ks01":"N",
"kp01":"N"
},
"tag":{
"dev":"B280V3",
"USAGE":"001"
}
}
create stream chr.stream_struct1 (
data_value jsonb
);