mirror of
https://github.com/postgres/postgres.git
synced 2025-05-31 00:01:57 -04:00
83e83aad56
This should have been done when the json functionality was added to hstore in 9.3.0. To handle this correctly, the upgrade script therefore uses conditional logic by using plpgsql in a DO statement to add the two new functions and the new cast. If hstore_to_json_loose is detected as already present and dependent on the hstore extension nothing is done. This will require that the database be loaded with plpgsql. People who have installed the earlier and spurious 1.1 version of hstore will need to do: ALTER EXTENSION hstore UPDATE; to pick up the new functions properly.
The PostgreSQL contrib tree
---------------------------
This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree. This does not preclude their
usefulness.
User documentation for each module appears in the main SGML
documentation.
When building from the source distribution, these modules are not
built automatically, unless you build the "world" target. You can
also build and install them all by running "gmake all" and "gmake
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.
Some directories supply new user-defined functions, operators, or
types. To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command. In a fresh database,
you can simply do
CREATE EXTENSION module_name;
See the PostgreSQL documentation for more information about this
procedure.