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binary migration: pg_migrator

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Add comments about places where system oids have to be preserved for
binary migration.
This commit is contained in:
Bruce Momjian 2009-12-19 00:47:57 +00:00
parent 2e9468f2c8
commit 78a09145e0
5 changed files with 29 additions and 5 deletions
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6
src/backend/catalog/pg_enum.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/catalog/pg_enum.c,v 1.9 2009/01/01 17:23:37 momjian Exp $
* $PostgreSQL: pgsql/src/backend/catalog/pg_enum.c,v 1.10 2009/12/19 00:47:57 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -67,6 +67,10 @@ EnumValuesCreate(Oid enumTypeOid, List *vals)
oids = (Oid *) palloc(n * sizeof(Oid));
for (i = 0; i < n; i++)
{
/*
* The pg_enum.oid is stored in user tables. This oid must be
* preserved by binary upgrades.
*/
oids[i] = GetNewOid(pg_enum);
}

8
src/backend/commands/typecmds.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/typecmds.c,v 1.139 2009/12/07 05:22:21 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/typecmds.c,v 1.140 2009/12/19 00:47:57 momjian Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@ -531,6 +531,12 @@ DefineType(List *names, List *parameters)
* now have TypeCreate do all the real work.
*/
typoid =
/*
* The pg_type.oid is stored in user tables as array elements
* (base types) in ArrayType and in composite types in
* DatumTupleFields. This oid must be preserved by binary
* upgrades.
*/
TypeCreate(InvalidOid, /* no predetermined type OID */
typeName, /* type name */
typeNamespace, /* namespace */

7
src/backend/utils/adt/arrayfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.161 2009/09/04 11:20:22 heikki Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.162 2009/12/19 00:47:57 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -328,6 +328,11 @@ array_in(PG_FUNCTION_ARGS)
SET_VARSIZE(retval, nbytes);
retval->ndim = ndim;
retval->dataoffset = dataoffset;
/*
* This comes from the array's pg_type.typelem (which points to the
* base data type's pg_type.oid) and stores system oids in user tables.
* This oid must be preserved by binary upgrades.
*/
retval->elemtype = element_type;
memcpy(ARR_DIMS(retval), dim, ndim * sizeof(int));
memcpy(ARR_LBOUND(retval), lBound, ndim * sizeof(int));

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

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/enum.c,v 1.7 2009/01/01 17:23:49 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/enum.c,v 1.8 2009/12/19 00:47:57 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -56,6 +56,10 @@ enum_in(PG_FUNCTION_ARGS)
format_type_be(enumtypoid),
name)));
/*
* This comes from pg_enum.oid and stores system oids in user tables.
* This oid must be preserved by binary upgrades.
*/
enumoid = HeapTupleGetOid(tup);
ReleaseSysCache(tup);

7
src/backend/utils/adt/rowtypes.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/rowtypes.c,v 1.25 2009/06/11 14:49:04 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/rowtypes.c,v 1.26 2009/12/19 00:47:57 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -97,6 +97,11 @@ record_in(PG_FUNCTION_ARGS)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("input of anonymous composite types is not implemented")));
tupTypmod = -1; /* for all non-anonymous types */
/*
* This comes from the composite type's pg_type.oid and
* stores system oids in user tables, specifically DatumTupleFields.
* This oid must be preserved by binary upgrades.
*/
tupdesc = lookup_rowtype_tupdesc(tupType, tupTypmod);
ncolumns = tupdesc->natts;