Is it possible to specify the schema when connecting to postgres with JDBC?
JavaDatabasePostgresqlJdbcDatabase SchemaJava Problem Overview
Is it possible? Can i specify it on the connection URL? How to do that?
Java Solutions
Solution 1 - Java
I know this was answered already, but I just ran into the same issue trying to specify the schema to use for the liquibase command line.
Update As of JDBC v9.4 you can specify the url with the new currentSchema parameter like so:
jdbc:postgresql://localhost:5432/mydatabase?currentSchema=myschema
Appears based on an earlier patch:
Which proposed url's like so:
jdbc:postgresql://localhost:5432/mydatabase?searchpath=myschema
Solution 2 - Java
As of version 9.4, you can use the currentSchema parameter in your connection string.
For example:
jdbc:postgresql://localhost:5432/mydatabase?currentSchema=myschema
Solution 3 - Java
If it is possible in your environment, you could also set the user's default schema to your desired schema:
ALTER USER user_name SET search_path to 'schema'
Solution 4 - Java
I don't believe there is a way to specify the schema in the connection string. It appears you have to execute
set search_path to 'schema'
after the connection is made to specify the schema.
Solution 5 - Java
DataSource – setCurrentSchema
When instantiating a DataSource implementation, look for a method to set the current/default schema.
For example, on the PGSimpleDataSource class call setCurrentSchema.
org.postgresql.ds.PGSimpleDataSource dataSource = new org.postgresql.ds.PGSimpleDataSource ( );
dataSource.setServerName ( "localhost" );
dataSource.setDatabaseName ( "your_db_here_" );
dataSource.setPortNumber ( 5432 );
dataSource.setUser ( "postgres" );
dataSource.setPassword ( "your_password_here" );
dataSource.setCurrentSchema ( "your_schema_name_here_" ); // <----------
If you leave the schema unspecified, Postgres defaults to a schema named public within the database. See the manual, section 5.9.2 The Public Schema. To quote hat manual:
>In the previous sections we created tables without specifying any schema names. By default such tables (and other objects) are automatically put into a schema named “public”. Every new database contains such a schema.
Solution 6 - Java
I submitted an updated version of a patch to the PostgreSQL JDBC driver to enable this a few years back. You'll have to build the PostreSQL JDBC driver from source (after adding in the patch) to use it:
http://archives.postgresql.org/pgsql-jdbc/2008-07/msg00012.php
Solution 7 - Java
Don't forget SET SCHEMA 'myschema' which you could use in a separate Statement
> SET SCHEMA 'value' is an alias for SET search_path TO value. Only one > schema can be specified using this syntax.
And since 9.4 and possibly earlier versions on the JDBC driver, there is support for the setSchema(String schemaName) method.
Solution 8 - Java
In Go with "sql.DB" (note the search_path with underscore):
postgres://user:password@host/dbname?sslmode=disable&search_path=schema