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Add CASCADE support for CREATE EXTENSION.

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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
This commit is contained in:
Andres Freund
2015-10-03 18:19:37 +02:00
parent bf686796a0
commit b67aaf21e8
32 changed files with 346 additions and 89 deletions
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4
contrib/ltree_plpython/expected/ltree_plpython.out
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@ -1,5 +1,5 @@
CREATE EXTENSION plpython2u;
CREATE EXTENSION ltree_plpython2u;
CREATE EXTENSION ltree_plpython2u CASCADE;
NOTICE: installing required extension "plpython2u"
CREATE FUNCTION test1(val ltree) RETURNS int
LANGUAGE plpythonu
TRANSFORM FOR TYPE ltree