*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.66 2003/01/27 00:23:38 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.67 2003/02/01 22:06:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
die_horribly(AH, modulename, "could not close the output file in CloseArchive\n");
}
-/*
- * This function repairs a slip when upgrading PG cast
- * mechanism from 7.2 or earlier to 7.3 or later.
- * The casts between lo and oid are needed when retrieving
- * lo type data in FixupBlobRefs and so adjust lo type in
- * contrib before processing FixupBlobRefs.
- */
-static void
-Adjust_lo_type(ArchiveHandle *AH)
-{
- PGresult *res;
- int nTuples;
-
- /*
- * First check the existence of the cast oid as lo.
- */
- res = PQexec(AH->blobConnection, "select 1 from pg_cast where"
- " castsource in (select oid from pg_type where typname = 'oid')"
- " and casttarget in (select oid from pg_type where typname = 'lo')");
-
- if (!res || PQresultStatus(res) != PGRES_TUPLES_OK)
- die_horribly(AH, modulename, "error while checking the cast oid as lo\n");
- nTuples = PQntuples(res);
- PQclear(res);
- if (nTuples == 0)
- {
- /*
- * Check the existence of the cast function lo(oid)
- * and change it to be IMMUTABLE.
- */
- res = PQexec(AH->blobConnection, "update pg_proc set provolatile = 'i'"
- " where proname = 'lo'"
- " and pronargs = 1"
- " and prorettype in (select oid from pg_type where typname = 'lo')"
- " and proargtypes[0] in (select oid from pg_type where typname = 'oid')");
-
- if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
- die_horribly(AH, modulename, "could not adjust lo(oid) function\n");
- nTuples = atoi(PQcmdTuples(res));
- PQclear(res);
- if (nTuples == 1)
- {
- /*
- * The cast function lo(oid) exists and
- * then create the correspoding cast.
- */
- res = PQexec(AH->blobConnection, "create cast"
- " (oid as lo) with function lo(oid) as implicit");
- if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
- die_horribly(AH, modulename, "couldn't create cast (oid as lo)\n");
- PQclear(res);
- }
- }
-
- /*
- * Also check the existence of the cast lo as oid.
- */
- res = PQexec(AH->blobConnection, "select 1 from pg_cast where"
- " castsource in (select oid from pg_type where typname = 'lo')"
- " and casttarget in (select oid from pg_type where typname = 'oid')");
-
- if (!res || PQresultStatus(res) != PGRES_TUPLES_OK)
- die_horribly(AH, modulename, "error while checking the cast lo as oid\n");
- nTuples = PQntuples(res);
- PQclear(res);
- if (nTuples == 0)
- {
- /*
- * Check the existence of the cast function oid(lo)
- * and change it to be IMMUTABLE.
- */
- res = PQexec(AH->blobConnection, "update pg_proc set provolatile = 'i'"
- " where proname = 'oid'"
- " and pronargs = 1"
- " and prorettype in (select oid from pg_type where typname = 'oid')"
- " and proargtypes[0] in (select oid from pg_type where typname = 'lo')");
-
- if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
- die_horribly(AH, modulename, "could not adjust oid(lo) function\n");
- nTuples = atoi(PQcmdTuples(res));
- PQclear(res);
- if (nTuples == 1)
- {
- /*
- * The cast function oid(lo) exists and
- * then create the correspoding cast.
- */
- res = PQexec(AH->blobConnection, "create cast"
- " (lo as oid) with function oid(lo) as implicit");
- if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
- die_horribly(AH, modulename, "couldn't create cast (lo as oid)\n");
- PQclear(res);
- }
- }
-}
-
/* Public */
void
RestoreArchive(Archive *AHX, RestoreOptions *ropt)
/* NULL parameter means disable ALL user triggers */
_disableTriggersIfNecessary(AH, NULL, ropt);
- Adjust_lo_type(AH);
te = AH->toc->next;
while (te != AH->toc)
{
* Implements the basic DB functions used by the archiver.
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.43 2002/10/22 19:15:23 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.44 2003/02/01 22:06:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
*uRes;
int i,
n;
- char *attr;
if (strcmp(te->tag, BLOB_XREF_TABLE) == 0)
return;
fmtId(te->tag));
appendPQExpBuffer(tblQry,
- "SELECT a.attname FROM "
+ "SELECT a.attname, t.typname FROM "
"pg_catalog.pg_attribute a, pg_catalog.pg_type t "
"WHERE a.attnum > 0 AND a.attrelid = '%s'::pg_catalog.regclass "
"AND a.atttypid = t.oid AND t.typname in ('oid', 'lo')",
for (i = 0; i < n; i++)
{
+ char *attr;
+ char *typname;
+ bool typeisoid;
+
attr = PQgetvalue(res, i, 0);
+ typname = PQgetvalue(res, i, 1);
+
+ typeisoid = (strcmp(typname, "oid") == 0);
ahlog(AH, 1, "fixing large object cross-references for %s.%s\n",
te->tag, attr);
resetPQExpBuffer(tblQry);
- /* Can't use fmtId twice in one call... */
+ /*
+ * Note: we use explicit typename() cast style here because if we
+ * are dealing with a dump from a pre-7.3 database containing LO
+ * columns, the dump probably will not have CREATE CAST commands
+ * for lo<->oid conversions. What it will have is functions,
+ * which we will invoke as functions.
+ */
+
+ /* Can't use fmtId more than once per call... */
appendPQExpBuffer(tblQry,
- "UPDATE %s SET %s = %s.newOid",
- tblName->data, fmtId(attr),
- BLOB_XREF_TABLE);
+ "UPDATE %s SET %s = ",
+ tblName->data, fmtId(attr));
+ if (typeisoid)
+ appendPQExpBuffer(tblQry,
+ "%s.newOid",
+ BLOB_XREF_TABLE);
+ else
+ appendPQExpBuffer(tblQry,
+ "%s(%s.newOid)",
+ fmtId(typname),
+ BLOB_XREF_TABLE);
appendPQExpBuffer(tblQry,
- " FROM %s WHERE %s.oldOid = %s.%s",
- BLOB_XREF_TABLE,
+ " FROM %s WHERE %s.oldOid = ",
BLOB_XREF_TABLE,
- tblName->data, fmtId(attr));
+ BLOB_XREF_TABLE);
+ if (typeisoid)
+ appendPQExpBuffer(tblQry,
+ "%s.%s",
+ tblName->data, fmtId(attr));
+ else
+ appendPQExpBuffer(tblQry,
+ "oid(%s.%s)",
+ tblName->data, fmtId(attr));
ahlog(AH, 10, "SQL: %s\n", tblQry->data);
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