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Core support for "extensions", which are packages of SQL objects.

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This patch adds the server infrastructure to support extensions.
There is still one significant loose end, namely how to make it play nice
with pg_upgrade, so I am not yet committing the changes that would make
all the contrib modules depend on this feature.

In passing, fix a disturbingly large amount of breakage in
AlterObjectNamespace() and callers.

Dimitri Fontaine, reviewed by Anssi Kääriäinen,
Itagaki Takahiro, Tom Lane, and numerous others
This commit is contained in:
Tom Lane
2011-02-08 16:08:41 -05:00
parent 414c5a2ea6
commit d9572c4e3b
69 changed files with 4206 additions and 547 deletions
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src/backend/commands/tablecmds.c
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@ -6851,6 +6851,7 @@ ATExecAlterColumnType(AlteredTableInfo *tab, Relation rel,
case OCLASS_FOREIGN_SERVER:
case OCLASS_USER_MAPPING:
case OCLASS_DEFACL:
case OCLASS_EXTENSION:
/*
* We don't expect any of these sorts of objects to depend on