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Add support for multiple versions of an extension and ALTER EXTENSION UPDATE.

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This follows recent discussions, so it's quite a bit different from
Dimitri's original.  There will probably be more changes once we get a bit
of experience with it, but let's get it in and start playing with it.

This is still just core code.  I'll start converting contrib modules
shortly.

Dimitri Fontaine and Tom Lane
This commit is contained in:
Tom Lane
2011-02-11 21:25:20 -05:00
parent 60141eefaf
commit 1214749901
16 changed files with 1032 additions and 123 deletions
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52
src/backend/parser/gram.y
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@ -185,7 +185,7 @@ static RangeVar *makeRangeVarFromAnyName(List *names, int position, core_yyscan_
AlterDatabaseStmt AlterDatabaseSetStmt AlterDomainStmt AlterEnumStmt
AlterFdwStmt AlterForeignServerStmt AlterGroupStmt
AlterObjectSchemaStmt AlterOwnerStmt AlterSeqStmt AlterTableStmt
AlterExtensionContentsStmt AlterForeignTableStmt
AlterExtensionStmt AlterExtensionContentsStmt AlterForeignTableStmt
AlterCompositeTypeStmt AlterUserStmt AlterUserMappingStmt AlterUserSetStmt
AlterRoleStmt AlterRoleSetStmt
AlterDefaultPrivilegesStmt DefACLAction
@ -227,9 +227,11 @@ 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 create_extension_opt_list
transaction_mode_list
create_extension_opt_list alter_extension_opt_list
%type <defelt> createdb_opt_item alterdb_opt_item copy_opt_item
transaction_mode_item create_extension_opt_item
transaction_mode_item
create_extension_opt_item alter_extension_opt_item
%type <ival> opt_lock lock_type cast_context
%type <ival> vacuum_option_list vacuum_option_elem
@ -664,6 +666,7 @@ stmt :
| AlterDefaultPrivilegesStmt
| AlterDomainStmt
| AlterEnumStmt
| AlterExtensionStmt
| AlterExtensionContentsStmt
| AlterFdwStmt
| AlterForeignServerStmt
@ -3222,7 +3225,7 @@ DropTableSpaceStmt: DROP TABLESPACE name
*
* QUERY:
* CREATE EXTENSION extension
* [ WITH ] [ SCHEMA [=] schema ]
* [ WITH ] [ SCHEMA schema ] [ VERSION version ] [ FROM oldversion ]
*
*****************************************************************************/
@ -3243,9 +3246,46 @@ create_extension_opt_list:
;
create_extension_opt_item:
SCHEMA opt_equal name
SCHEMA name
{
$$ = makeDefElem("schema", (Node *)makeString($3));
$$ = makeDefElem("schema", (Node *)makeString($2));
}
| VERSION_P ColId_or_Sconst
{
$$ = makeDefElem("new_version", (Node *)makeString($2));
}
| FROM ColId_or_Sconst
{
$$ = makeDefElem("old_version", (Node *)makeString($2));
}
;
/*****************************************************************************
*
* ALTER EXTENSION name UPDATE [ TO version ]
*
*****************************************************************************/
AlterExtensionStmt: ALTER EXTENSION name UPDATE alter_extension_opt_list
{
AlterExtensionStmt *n = makeNode(AlterExtensionStmt);
n->extname = $3;
n->options = $5;
$$ = (Node *) n;
}
;
alter_extension_opt_list:
alter_extension_opt_list alter_extension_opt_item
{ $$ = lappend($1, $2); }
| /* EMPTY */
{ $$ = NIL; }
;
alter_extension_opt_item:
TO ColId_or_Sconst
{
$$ = makeDefElem("new_version", (Node *)makeString($2));
}
;