![]() This setting may be useful until the CONNECTION LIMIT syntax is fully supported. If a new non-superuser connection would exceed this limit, the error message "sorry, too many clients already" is returned, along with error code 53300. Typically, you can use it where you are currently using COUNT (DISTINCT ).To control the maximum number of non-superuser ( root user or other admin role) connections a gateway node can have open at one time, use the server.max_connections_per_gateway cluster setting. Yes To use Hyperloglog, you must have data that counts distinct values across a time series or set of values. Surviving zone failures is the default setting for multi-region databases. ![]() To set the regional failure survival goal, the database must have at least 3 database regions. ![]() To set database regions at database creation, a primary region must be specified in the same CREATE DATABASE statement.Ĭreate a multi-region database with regional failure or zone failure survival goals. ( *)Ĭreate a multi-region database with region_name as the primary region.Īllowed values include any region returned by SHOW REGIONS FROM CLUSTER.Ĭreate a multi-region database with region_name_list as database regions. Values other than -1 are currently not supported. A value of -1 indicates no connection limit. Supported for compatibility with PostgreSQL. Values should be enclosed in single quotes and are case-insensitive.Įxample: CREATE DATABASE bank ENCODING = 'UTF-8'. The aliases UTF8 and UNICODE are also accepted. A different template can be specified by writing TEMPLATE name. By default, the new database will be created by cloning the standard system database template1. To create a database, you must be a superuser or have the special CREATEDB privilege. The CREATE DATABASE statement accepts an optional ENCODING clause for compatibility with PostgreSQL, but UTF-8 is the only supported encoding. Description CREATE DATABASE creates a new PostgreSQL database. If your database name begins with this string, you must append the following to the URI connection string to connect to the cluster: &options=-ccluster=system The name of the database to create, which must be unique and follow these identifier rules.Ĭockroach Labs recommends against starting your database name with the string cluster. CREATE DATABASE IF NOT EXISTS database_name WITH opt_template_clause ENCODING = encoding opt_lc_collate_clause opt_lc_ctype_clause CONNECTION LIMIT = limit PRIMARY REGION = region_name REGIONS = region_name_list SURVIVE = REGION ZONE FAILURE opt_placement_clause opt_owner_clause opt_super_region_clause opt_secondary_region_clause Parameters ParameterĬreate a new database only if a database of the same name does not already exist if one does exist, do not return an error.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |