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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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82
src/backend/commands/opclasscmds.c
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@ -309,6 +309,9 @@ CreateOpFamily(char *amname, char *opfname, Oid namespaceoid, Oid amoid)
/* dependency on owner */
recordDependencyOnOwner(OperatorFamilyRelationId, opfamilyoid, GetUserId());
/* dependency on extension */
recordDependencyOnCurrentExtension(&myself);
/* Post creation hook for new operator family */
InvokeObjectAccessHook(OAT_POST_CREATE,
OperatorFamilyRelationId, opfamilyoid, 0);
@ -709,6 +712,9 @@ DefineOpClass(CreateOpClassStmt *stmt)
/* dependency on owner */
recordDependencyOnOwner(OperatorClassRelationId, opclassoid, GetUserId());
/* dependency on extension */
recordDependencyOnCurrentExtension(&myself);
/* Post creation hook for new operator class */
InvokeObjectAccessHook(OAT_POST_CREATE,
OperatorClassRelationId, opclassoid, 0);
@ -1997,28 +2003,48 @@ AlterOpClassNamespace(List *name, char *access_method, const char *newschema)
{
Oid amOid;
Relation rel;
Oid oid;
Oid opclassOid;
Oid nspOid;
amOid = get_am_oid(access_method, false);
rel = heap_open(OperatorClassRelationId, RowExclusiveLock);
/* Look up the opclass. */
oid = get_opclass_oid(amOid, name, false);
/* Look up the opclass */
opclassOid = get_opclass_oid(amOid, name, false);
/* get schema OID */
nspOid = LookupCreationNamespace(newschema);
AlterObjectNamespace(rel, CLAOID, OperatorClassRelationId,
oid, nspOid,
Anum_pg_opfamily_opfname,
Anum_pg_opfamily_opfnamespace,
Anum_pg_opfamily_opfowner,
ACL_KIND_OPCLASS,
false);
AlterObjectNamespace(rel, CLAOID, -1,
opclassOid, nspOid,
Anum_pg_opclass_opcname,
Anum_pg_opclass_opcnamespace,
Anum_pg_opclass_opcowner,
ACL_KIND_OPCLASS);
heap_close(rel, NoLock);
heap_close(rel, RowExclusiveLock);
}
Oid
AlterOpClassNamespace_oid(Oid opclassOid, Oid newNspOid)
{
Oid oldNspOid;
Relation rel;
rel = heap_open(OperatorClassRelationId, RowExclusiveLock);
oldNspOid =
AlterObjectNamespace(rel, CLAOID, -1,
opclassOid, newNspOid,
Anum_pg_opclass_opcname,
Anum_pg_opclass_opcnamespace,
Anum_pg_opclass_opcowner,
ACL_KIND_OPCLASS);
heap_close(rel, RowExclusiveLock);
return oldNspOid;
}
/*
@ -2186,26 +2212,46 @@ AlterOpFamilyNamespace(List *name, char *access_method, const char *newschema)
{
Oid amOid;
Relation rel;
Oid opfamilyOid;
Oid nspOid;
Oid oid;
amOid = get_am_oid(access_method, false);
rel = heap_open(OperatorFamilyRelationId, RowExclusiveLock);
/* Look up the opfamily */
oid = get_opfamily_oid(amOid, name, false);
opfamilyOid = get_opfamily_oid(amOid, name, false);
/* get schema OID */
nspOid = LookupCreationNamespace(newschema);
AlterObjectNamespace(rel, OPFAMILYOID, OperatorFamilyRelationId,
oid, nspOid,
AlterObjectNamespace(rel, OPFAMILYOID, -1,
opfamilyOid, nspOid,
Anum_pg_opfamily_opfname,
Anum_pg_opfamily_opfnamespace,
Anum_pg_opfamily_opfowner,
ACL_KIND_OPFAMILY,
false);
ACL_KIND_OPFAMILY);
heap_close(rel, NoLock);
heap_close(rel, RowExclusiveLock);
}
Oid
AlterOpFamilyNamespace_oid(Oid opfamilyOid, Oid newNspOid)
{
Oid oldNspOid;
Relation rel;
rel = heap_open(OperatorFamilyRelationId, RowExclusiveLock);
oldNspOid =
AlterObjectNamespace(rel, OPFAMILYOID, -1,
opfamilyOid, newNspOid,
Anum_pg_opfamily_opfname,
Anum_pg_opfamily_opfnamespace,
Anum_pg_opfamily_opfowner,
ACL_KIND_OPFAMILY);
heap_close(rel, RowExclusiveLock);
return oldNspOid;
}