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After creating a new schema, you can make it a default schema instead of a public schema. To make a schema default, the search_path variable is used. Search_path variable defines the schema order in which they are searched when an object is referenced without any schema name.
The default search path makes PostgreSQL search first in the schema named exactly as the user name you used for logging into the database. If the user name is different from the schema names, or there is no table szymon. a then it would look in the public. a table.
Specifies the order in which Vertica searches schemas when a SQL statement specifies a table name that is unqualified by a schema name. SET SEARCH_PATH overrides the current session's search path, which is initially set from the user profile.
PostgreSQL ALTER SCHEMA statement overviewALTER SCHEMA schema_name RENAME TO new_name; In this syntax: First, specify the name of the schema that you want to rename after the ALTER SCHEMA keywords. Second, specify the new name of the schema after the RENAME TO keywords.
(And if you have no admin access to the server)
ALTER ROLE <your_login_role> SET search_path TO a,b,c;
Two important things to know about:
a, b, c matters, as it is also the order in which the schemas will be looked up for tables. So if you have the same table name in more than one schema among the defaults, there will be no ambiguity, the server will always use the table from the first schema you specified for your search_path.You can set the default search_path at the database level:
ALTER DATABASE <database_name> SET search_path TO schema1,schema2;
Or at the user or role level:
ALTER ROLE <role_name> SET search_path TO schema1,schema2;
Or if you have a common default schema in all your databases you could set the system-wide default in the config file with the search_path option.
When a database is created it is created by default from a hidden "template" database named template1, you could alter that database to specify a new default search path for all databases created in the future. You could also create another template database and use CREATE DATABASE <database_name> TEMPLATE <template_name> to create your databases.
Josh is correct but he left out one variation:
ALTER ROLE <role_name> IN DATABASE <db_name> SET search_path TO schema1,schema2;
Set the search path for the user, in one particular database.
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