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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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56
src/backend/parser/gram.y
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@@ -191,7 +191,7 @@ static RangeVar *makeRangeVarFromAnyName(List *names, int position, core_yyscan_
AlterDefaultPrivilegesStmt DefACLAction
AnalyzeStmt ClosePortalStmt ClusterStmt CommentStmt
ConstraintsSetStmt CopyStmt CreateAsStmt CreateCastStmt
CreateDomainStmt CreateGroupStmt CreateOpClassStmt
CreateDomainStmt CreateExtensionStmt CreateGroupStmt CreateOpClassStmt
CreateOpFamilyStmt AlterOpFamilyStmt CreatePLangStmt
CreateSchemaStmt CreateSeqStmt CreateStmt CreateTableSpaceStmt
CreateFdwStmt CreateForeignServerStmt CreateForeignTableStmt
@@ -227,9 +227,9 @@ static RangeVar *makeRangeVarFromAnyName(List *names, int position, core_yyscan_
%type <dbehavior> opt_drop_behavior
%type <list> createdb_opt_list alterdb_opt_list copy_opt_list
transaction_mode_list
transaction_mode_list create_extension_opt_list
%type <defelt> createdb_opt_item alterdb_opt_item copy_opt_item
transaction_mode_item
transaction_mode_item create_extension_opt_item
%type <ival> opt_lock lock_type cast_context
%type <ival> vacuum_option_list vacuum_option_elem
@@ -492,7 +492,8 @@ static RangeVar *makeRangeVarFromAnyName(List *names, int position, core_yyscan_
DICTIONARY DISABLE_P DISCARD DISTINCT DO DOCUMENT_P DOMAIN_P DOUBLE_P DROP
EACH ELSE ENABLE_P ENCODING ENCRYPTED END_P ENUM_P ESCAPE EXCEPT
EXCLUDE EXCLUDING EXCLUSIVE EXECUTE EXISTS EXPLAIN EXTERNAL EXTRACT
EXCLUDE EXCLUDING EXCLUSIVE EXECUTE EXISTS EXPLAIN
EXTENSION EXTERNAL EXTRACT
FALSE_P FAMILY FETCH FIRST_P FLOAT_P FOLLOWING FOR FORCE FOREIGN FORWARD
FREEZE FROM FULL FUNCTION FUNCTIONS
@@ -692,6 +693,7 @@ stmt :
| CreateCastStmt
| CreateConversionStmt
| CreateDomainStmt
| CreateExtensionStmt
| CreateFdwStmt
| CreateForeignServerStmt
| CreateForeignTableStmt
@@ -3215,6 +3217,37 @@ DropTableSpaceStmt: DROP TABLESPACE name
}
;
/*****************************************************************************
*
* QUERY:
* CREATE EXTENSION extension
* [ WITH ] [ SCHEMA [=] schema ]
*
*****************************************************************************/
CreateExtensionStmt: CREATE EXTENSION name opt_with create_extension_opt_list
{
CreateExtensionStmt *n = makeNode(CreateExtensionStmt);
n->extname = $3;
n->options = $5;
$$ = (Node *) n;
}
;
create_extension_opt_list:
create_extension_opt_list create_extension_opt_item
{ $$ = lappend($1, $2); }
| /* EMPTY */
{ $$ = NIL; }
;
create_extension_opt_item:
SCHEMA opt_equal name
{
$$ = makeDefElem("schema", (Node *)makeString($3));
}
;
/*****************************************************************************
*
* QUERY:
@@ -4340,11 +4373,12 @@ drop_type: TABLE { $$ = OBJECT_TABLE; }
| SEQUENCE { $$ = OBJECT_SEQUENCE; }
| VIEW { $$ = OBJECT_VIEW; }
| INDEX { $$ = OBJECT_INDEX; }
| TYPE_P { $$ = OBJECT_TYPE; }
| FOREIGN TABLE { $$ = OBJECT_FOREIGN_TABLE; }
| TYPE_P { $$ = OBJECT_TYPE; }
| DOMAIN_P { $$ = OBJECT_DOMAIN; }
| CONVERSION_P { $$ = OBJECT_CONVERSION; }
| SCHEMA { $$ = OBJECT_SCHEMA; }
| EXTENSION { $$ = OBJECT_EXTENSION; }
| TEXT_P SEARCH PARSER { $$ = OBJECT_TSPARSER; }
| TEXT_P SEARCH DICTIONARY { $$ = OBJECT_TSDICTIONARY; }
| TEXT_P SEARCH TEMPLATE { $$ = OBJECT_TSTEMPLATE; }
@@ -4398,7 +4432,7 @@ opt_restart_seqs:
*
* COMMENT ON [ [ DATABASE | DOMAIN | INDEX | SEQUENCE | TABLE | TYPE | VIEW |
* CONVERSION | LANGUAGE | OPERATOR CLASS | LARGE OBJECT |
* CAST | COLUMN | SCHEMA | TABLESPACE | ROLE |
* CAST | COLUMN | SCHEMA | TABLESPACE | EXTENSION | ROLE |
* TEXT SEARCH PARSER | TEXT SEARCH DICTIONARY |
* TEXT SEARCH TEMPLATE | TEXT SEARCH CONFIGURATION |
* FOREIGN TABLE ] <objname> |
@@ -4577,6 +4611,7 @@ comment_type:
| VIEW { $$ = OBJECT_VIEW; }
| CONVERSION_P { $$ = OBJECT_CONVERSION; }
| TABLESPACE { $$ = OBJECT_TABLESPACE; }
| EXTENSION { $$ = OBJECT_EXTENSION; }
| ROLE { $$ = OBJECT_ROLE; }
| FOREIGN TABLE { $$ = OBJECT_FOREIGN_TABLE; }
;
@@ -6271,6 +6306,14 @@ AlterObjectSchemaStmt:
n->newschema = $6;
$$ = (Node *)n;
}
| ALTER EXTENSION any_name SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
n->objectType = OBJECT_EXTENSION;
n->object = $3;
n->newschema = $6;
$$ = (Node *)n;
}
| ALTER FUNCTION function_with_argtypes SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
@@ -11462,6 +11505,7 @@ unreserved_keyword:
| EXCLUSIVE
| EXECUTE
| EXPLAIN
| EXTENSION
| EXTERNAL
| FAMILY
| FIRST_P