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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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14
src/backend/nodes/copyfuncs.c
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@ -3251,6 +3251,17 @@ _copyCreateExtensionStmt(CreateExtensionStmt *from)
return newnode;
}
static AlterExtensionStmt *
_copyAlterExtensionStmt(AlterExtensionStmt *from)
{
AlterExtensionStmt *newnode = makeNode(AlterExtensionStmt);
COPY_STRING_FIELD(extname);
COPY_NODE_FIELD(options);
return newnode;
}
static AlterExtensionContentsStmt *
_copyAlterExtensionContentsStmt(AlterExtensionContentsStmt *from)
{
@ -4267,6 +4278,9 @@ copyObject(void *from)
case T_CreateExtensionStmt:
retval = _copyCreateExtensionStmt(from);
break;
case T_AlterExtensionStmt:
retval = _copyAlterExtensionStmt(from);
break;
case T_AlterExtensionContentsStmt:
retval = _copyAlterExtensionContentsStmt(from);
break;