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Without CASCADE, if an extension has an unfullfilled dependency on another extension, CREATE EXTENSION ERRORs out with "required extension ... is not installed". That is annoying, especially when that dependency is an implementation detail of the extension, rather than something the extension's user can make sense of. In addition to CASCADE this also includes a small set of regression tests around CREATE EXTENSION. Author: Petr Jelinek, editorialized by Michael Paquier, Andres Freund Reviewed-By: Michael Paquier, Andres Freund, Jeff Janes Discussion: 557E0520.3040800@2ndquadrant.com
49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
CREATE EXTENSION hstore_plperl CASCADE;
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NOTICE: installing required extension "hstore"
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NOTICE: installing required extension "plperl"
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SELECT transforms.udt_schema, transforms.udt_name,
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routine_schema, routine_name,
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group_name, transform_type
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FROM information_schema.transforms JOIN information_schema.routines
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USING (specific_catalog, specific_schema, specific_name)
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ORDER BY 1, 2, 5, 6;
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udt_schema | udt_name | routine_schema | routine_name | group_name | transform_type
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------------+----------+----------------+------------------+------------+----------------
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public | hstore | public | hstore_to_plperl | plperl | FROM SQL
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public | hstore | public | plperl_to_hstore | plperl | TO SQL
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(2 rows)
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-- test perl -> hstore
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CREATE FUNCTION test2() RETURNS hstore
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LANGUAGE plperl
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TRANSFORM FOR TYPE hstore
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AS $$
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$val = {a => 1, b => 'boo', c => undef};
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return $val;
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$$;
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SELECT test2();
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test2
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---------------------------------
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"a"=>"1", "b"=>"boo", "c"=>NULL
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(1 row)
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-- test perl -> hstore[]
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CREATE FUNCTION test2arr() RETURNS hstore[]
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LANGUAGE plperl
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TRANSFORM FOR TYPE hstore
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AS $$
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$val = [{a => 1, b => 'boo', c => undef}, {d => 2}];
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return $val;
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$$;
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SELECT test2arr();
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test2arr
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--------------------------------------------------------------
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{"\"a\"=>\"1\", \"b\"=>\"boo\", \"c\"=>NULL","\"d\"=>\"2\""}
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(1 row)
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DROP FUNCTION test2();
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DROP FUNCTION test2arr();
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DROP EXTENSION hstore_plperl;
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DROP EXTENSION hstore;
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DROP EXTENSION plperl;
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