JSONB查询如何检查至少一个数组包含

Question

如何将下面的查询获取到 return 'true' 以反映我至少需要右侧数组中的一个值包含在左侧数组中？

SELECT   '["fun", "movies"]'::jsonb  @> '["fun", "movies","x"]'::jsonb;

上面的returns false（因为'x'不在左边的数组中）

我试过了 ?| operator link

SELECT   '["fun", "movies"]'::jsonb  ?| '["fun", "movies","x"]'::jsonb;

但是 postgres return 出错了

ERROR: operator does not exist: jsonb ?| jsonb LINE 2: SELECT
'["fun", "movies"]'::jsonb ?| '["fun", "movies","x...

HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts. SQL state: 42883 Character: 147

Answer 1

你需要先"convert" jsonb 数组到 postgres 数组:

t=# SELECT   '["fun", "movies"]'::jsonb  ?| translate('["fun", "movies","x"]'::jsonb::text,'[]','{}')::text[];
 ?column?
----------
 t
(1 row)

JSONB查询如何检查至少一个数组包含

JSONB query how to check at-least-one array containment

postgresql

jsonb

postgresql-10