database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-14 18:42:34 +03:00
Code Activity

Fix all known problems with pg_dump's handling of serial sequences

Browse Source 
by abandoning the idea that it should say SERIAL in the dump.  Instead,
dump serial sequences and column defaults just like regular ones.
Add a new backend command ALTER SEQUENCE OWNED BY to let pg_dump recreate
the sequence-to-column dependency that was formerly created "behind the
scenes" by SERIAL.  This restores SERIAL to being truly "just a macro"
consisting of component operations that can be stated explicitly in SQL.
Furthermore, the new command allows sequence ownership to be reassigned,
so that old mistakes can be cleaned up.

Also, downgrade the OWNED-BY dependency from INTERNAL to AUTO, since there
is no longer any very compelling argument why the sequence couldn't be
dropped while keeping the column.  (This forces initdb, to be sure the
right kinds of dependencies are in there.)

Along the way, add checks to prevent ALTER OWNER or SET SCHEMA on an
owned sequence; you can now only do this indirectly by changing the
owning table's owner or schema.  This is an oversight in previous
releases, but probably not worth back-patching.
This commit is contained in:
Tom Lane
2006-08-21 00:57:26 +00:00
parent df18c51f29
commit 2b2a50722c
29 changed files with 590 additions and 356 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/backend/utils/adt/ruleutils.c
View File

@ -2,7 +2,7 @@
* ruleutils.c - Functions to convert stored expressions/querytrees
* back to source text
*
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.231 2006/08/12 02:52:05 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.232 2006/08/21 00:57:25 tgl Exp $
**********************************************************************/
#include "postgres.h"
@ -1287,12 +1287,12 @@ pg_get_serial_sequence(PG_FUNCTION_ARGS)
Form_pg_depend deprec = (Form_pg_depend) GETSTRUCT(tup);
/*
* We assume any internal dependency of a relation on a column must be
* We assume any auto dependency of a relation on a column must be
* what we are looking for.
*/
if (deprec->classid == RelationRelationId &&
deprec->objsubid == 0 &&
deprec->deptype == DEPENDENCY_INTERNAL)
deprec->deptype == DEPENDENCY_AUTO)
{
sequenceId = deprec->objid;
break;