selectarray_to_json(array_agg(row_to_json(t)))from(selectid, textfromwords ) t This will result in a JSON array of objects: [{"id":6001,"text":"abaissed"},{"id":6002,"text":"abbatial"},{"id":6003,"text":"abelia"},...] In exchange for a substantial jump in complexity, ...
{ "sql_json_object_not_found", ERRCODE_SQL_JSON_OBJECT_NOT_FOUND }, { "too_many_json_array_elements", ERRCODE_TOO_MANY_JSON_ARRAY_ELEMENTS }, { "too_many_json_object_members", ERRCODE_TOO_MANY_JSON_OBJECT_MEMBERS }, { "sql_json_scalar_required", ERRCODE_SQL_JSON_SCALAR_REQUIRED }...
Returns the array as JSON. A PostgreSQL multidimensional array becomes a JSON array of arrays. Line feeds will be added between dimension 1 elements if pretty_bool is true. Syntax: array_to_json(anyarray [, pretty_bool]) Return Type json Example Code: SELECT array_to_json('{{2,8},{79...
objects.aggregate(boolor=BoolOr(Q(rank__gt=2))) {'boolor': False} JSONBAgg¶ class JSONBAgg(expressions, distinct=False, filter=None, ordering=(), **extra)¶ 将输入值以 JSON 数组形式返回。 distinct¶ New in Django 3.2. 一个可选的布尔参数,用于确定数组值是否会被去重。默认值为 ...
I hope this helps clear up any confusion you might have had about querying nested JSON objects in Postgres. If you want to learn more about these operators or if you want to see what else you can do,here is a link to the docsfor JSON functions in Postgres. ...
jsonb || jsonb (concatenate / overwrite) The || operator allows us to combine 2 jsonb objects. If there's overlap, values are replaced on the highest level. For example, if we want to add values to a jsonb object: # SELECT '{"name": "Joe", "age": 30}'::jsonb || '{"town...
json，hstore都能支持的很好，最近比较值得注意的是最新版的PostgreSQL中的jsonb类型，完全支持索引，意味...
programming. It helps us store ordered collections in JSON format. JSON arrays are enclosed within square brackets “[ ]” and can have different data types like strings, objects, numbers, etc. Postgres offers several functions to work with the JSON data, andJSON_ARRAY_ELEMENTS()is one of ...
22034 more_than_one_sql_json_item 22035 no_sql_json_item 22036 non_numeric_sql_json_item 22037 non_unique_keys_in_a_json_object 22038 singleton_sql_json_item_required 22039 sql_json_array_not_found 2203A sql_json_member_not_found 2203B sql_json_number_not_found 2203C sql_json_object_...
Type: array of objects(AdditionalColumns) (or Expression with resultType array of objects). Overrides: PostgreSqlSource.withAdditionalColumns(Object additionalColumns) Parameters: additionalColumns withDisableMetricsCollection public PostgreSqlSource withDisableMetricsCollection(Object disableMetricsCollection) S...