语法如下: --alter table table_name alter column {$column_name} set storage { PLAIN | MAIN | EXTERNAL | EXTENDED } ; postgres=# alter table test_toast alter column content2 set storage external; ALTER TABLE postgres=# \d+ test_toast Table "public.test_toast" Column | Type | Collation ...
Postgres JSONB Fields in Django30 July, 2020 I remember the first time I built user preferences into an app. At first, users just needed to be able to opt in or out of our weekly emails. "No big deal," I thought, "I'll just add a new field on the Users table." For a while...
<parameter name="refcursor" class="java.sql.ResultSet" isForPrompting="false"/> <![CDATA[call rsccc.jrxmltest6('file_id'::refcursor);FETCH ALL IN "file_id";]] Caused by: org.postgresql.util.PSQLException:...
pg_probackup add-instance -B backup_dir -D data_dir --instance=instance_name [remote_options] Where: data_dir is the data directory of the cluster you are going to back up. To set up and use pg_probackup, write access to this directory is required. instance_name is the name of...
jsonb string line string lseg string macaddr string macaddr8 string money number numeric, decimal number Infinity, -Infinity, and NaN are not supported and converted to null. Issue: #8902. path string pg_lsn string point string polygon string real, float4 number smallint, in...
This release brings exciting new features like improved query performance, dynamic logical replication, enhanced JSON functions, and more—all backed by Azure’s reliable managed services. Try out the preview now and share your feedback! For details, read the complete blog ...
(id=1) print(user_obj) ser1_obj = UserSeralizer(user_obj) return JsonResponse(ser1_obj.data) from rest_framework.renderers import JSONRenderer json = JSONRenderer().render(serializer.data) json # b'{"email":"leila@example.com","content":"foo bar","created":"2016-01-27T15:17:...
protobuf可以和Json之间直接映射,有兴趣可以去研究一下 序列化算法 Protobuf序列化的目标单位是一条消息(message),其算法,就是一个压缩算法,总体要点有几个 以序号替代字段名 对一般的数字类型和布尔采用变长表示法,这样一个int32类型的字段最低只要一个字节即可表示完成 ...
QueryJSON() // Prefer using known unique IDs to avoid the computation cost // of the checksum key. key = "user" + user.UserName b, err := DB. SQL(`SELECT * FROM users WHERE user_name = $1`, user). Cache(key, 15 * time.Minute, false). QueryJSON() // Set invalidate to ...
diff --git a/.gitignore b/.gitignore index 004846edc..caefb3156 100644 --- a/.gitignore +++ b/.gitignore @@ -1,15 +1,15 @@ -.build -postgres_exporter -postgres_exporter_integration_test +/.build +/postgres_exporter +/postgres_exporter_integration_test *.tar.gz *.test *-stamp ...