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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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27
src/backend/commands/foreigncmds.c
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@ -342,6 +342,8 @@ CreateForeignDataWrapper(CreateFdwStmt *stmt)
Oid fdwvalidator;
Datum fdwoptions;
Oid ownerId;
ObjectAddress myself;
ObjectAddress referenced;
/* Must be super user */
if (!superuser())
@ -401,15 +403,13 @@ CreateForeignDataWrapper(CreateFdwStmt *stmt)
heap_freetuple(tuple);
/* record dependencies */
myself.classId = ForeignDataWrapperRelationId;
myself.objectId = fdwId;
myself.objectSubId = 0;
if (fdwvalidator)
{
ObjectAddress myself;
ObjectAddress referenced;
myself.classId = ForeignDataWrapperRelationId;
myself.objectId = fdwId;
myself.objectSubId = 0;
referenced.classId = ProcedureRelationId;
referenced.objectId = fdwvalidator;
referenced.objectSubId = 0;
@ -418,6 +418,9 @@ CreateForeignDataWrapper(CreateFdwStmt *stmt)
recordDependencyOnOwner(ForeignDataWrapperRelationId, fdwId, ownerId);
/* dependency on extension */
recordDependencyOnCurrentExtension(&myself);
/* Post creation hook for new foreign data wrapper */
InvokeObjectAccessHook(OAT_POST_CREATE,
ForeignDataWrapperRelationId, fdwId, 0);
@ -691,7 +694,7 @@ CreateForeignServer(CreateForeignServerStmt *stmt)
heap_freetuple(tuple);
/* Add dependency on FDW and owner */
/* record dependencies */
myself.classId = ForeignServerRelationId;
myself.objectId = srvId;
myself.objectSubId = 0;
@ -703,6 +706,9 @@ CreateForeignServer(CreateForeignServerStmt *stmt)
recordDependencyOnOwner(ForeignServerRelationId, srvId, ownerId);
/* dependency on extension */
recordDependencyOnCurrentExtension(&myself);
/* Post creation hook for new foreign server */
InvokeObjectAccessHook(OAT_POST_CREATE, ForeignServerRelationId, srvId, 0);
@ -974,8 +980,13 @@ CreateUserMapping(CreateUserMappingStmt *stmt)
recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
if (OidIsValid(useId))
{
/* Record the mapped user dependency */
recordDependencyOnOwner(UserMappingRelationId, umId, useId);
}
/* dependency on extension */
recordDependencyOnCurrentExtension(&myself);
/* Post creation hook for new user mapping */
InvokeObjectAccessHook(OAT_POST_CREATE, UserMappingRelationId, umId, 0);