Have pg_upgrade properly preserve relfrozenxid in toast tables.

This fixes a pg_upgrade bug that could lead to query errors when clog
files are improperly removed.

diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index 38428956fdb2aafe40babc0fd47b7bd9f2b2094d..c5057f7e47627ab58b66966117a1d19f5ebb9b6d 100644 (file)
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -3185,6 +3185,8 @@ getTables(int *numTables)
        int                     i_relhasrules;
        int                     i_relhasoids;
        int                     i_relfrozenxid;
+       int                     i_toastoid;
+       int                     i_toastfrozenxid;
        int                     i_owning_tab;
        int                     i_owning_col;
        int                     i_reltablespace;
@@ -3226,7 +3228,8 @@ getTables(int *numTables)
                                                  "(%s c.relowner) AS rolname, "
                                                  "c.relchecks, c.relhastriggers, "
                                                  "c.relhasindex, c.relhasrules, c.relhasoids, "
-                                                 "c.relfrozenxid, "
+                                                 "c.relfrozenxid, tc.oid AS toid, "
+                                                 "tc.relfrozenxid AS tfrozenxid, "
                                                  "d.refobjid AS owning_tab, "
                                                  "d.refobjsubid AS owning_col, "
                                                  "(SELECT spcname FROM pg_tablespace t WHERE t.oid = c.reltablespace) AS reltablespace, "
@@ -3259,6 +3262,8 @@ getTables(int *numTables)
                                                  "relchecks, (reltriggers <> 0) AS relhastriggers, "
                                                  "relhasindex, relhasrules, relhasoids, "
                                                  "relfrozenxid, "
+                                                 "0 AS toid, "
+                                                 "0 AS tfrozenxid, "
                                                  "d.refobjid AS owning_tab, "
                                                  "d.refobjsubid AS owning_col, "
                                                  "(SELECT spcname FROM pg_tablespace t WHERE t.oid = c.reltablespace) AS reltablespace, "
@@ -3290,6 +3295,8 @@ getTables(int *numTables)
                                                  "relchecks, (reltriggers <> 0) AS relhastriggers, "
                                                  "relhasindex, relhasrules, relhasoids, "
                                                  "0 AS relfrozenxid, "
+                                                 "0 AS toid, "
+                                                 "0 AS tfrozenxid, "
                                                  "d.refobjid AS owning_tab, "
                                                  "d.refobjsubid AS owning_col, "
                                                  "(SELECT spcname FROM pg_tablespace t WHERE t.oid = c.reltablespace) AS reltablespace, "
@@ -3321,6 +3328,8 @@ getTables(int *numTables)
                                                  "relchecks, (reltriggers <> 0) AS relhastriggers, "
                                                  "relhasindex, relhasrules, relhasoids, "
                                                  "0 AS relfrozenxid, "
+                                                 "0 AS toid, "
+                                                 "0 AS tfrozenxid, "
                                                  "d.refobjid AS owning_tab, "
                                                  "d.refobjsubid AS owning_col, "
                                                  "NULL AS reltablespace, "
@@ -3348,6 +3357,8 @@ getTables(int *numTables)
                                                  "relchecks, (reltriggers <> 0) AS relhastriggers, "
                                                  "relhasindex, relhasrules, relhasoids, "
                                                  "0 AS relfrozenxid, "
+                                                 "0 AS toid, "
+                                                 "0 AS tfrozenxid, "
                                                  "NULL::oid AS owning_tab, "
                                                  "NULL::int4 AS owning_col, "
                                                  "NULL AS reltablespace, "
@@ -3370,6 +3381,8 @@ getTables(int *numTables)
                                                  "relhasindex, relhasrules, "
                                                  "'t'::bool AS relhasoids, "
                                                  "0 AS relfrozenxid, "
+                                                 "0 AS toid, "
+                                                 "0 AS tfrozenxid, "
                                                  "NULL::oid AS owning_tab, "
                                                  "NULL::int4 AS owning_col, "
                                                  "NULL AS reltablespace, "
@@ -3446,6 +3459,8 @@ getTables(int *numTables)
        i_relhasrules = PQfnumber(res, "relhasrules");
        i_relhasoids = PQfnumber(res, "relhasoids");
        i_relfrozenxid = PQfnumber(res, "relfrozenxid");
+       i_toastoid = PQfnumber(res, "toid");
+       i_toastfrozenxid = PQfnumber(res, "tfrozenxid");
        i_owning_tab = PQfnumber(res, "owning_tab");
        i_owning_col = PQfnumber(res, "owning_col");
        i_reltablespace = PQfnumber(res, "reltablespace");
@@ -3484,6 +3499,8 @@ getTables(int *numTables)
                tblinfo[i].hastriggers = (strcmp(PQgetvalue(res, i, i_relhastriggers), "t") == 0);
                tblinfo[i].hasoids = (strcmp(PQgetvalue(res, i, i_relhasoids), "t") == 0);
                tblinfo[i].frozenxid = atooid(PQgetvalue(res, i, i_relfrozenxid));
+               tblinfo[i].toast_oid = atooid(PQgetvalue(res, i, i_toastoid));
+               tblinfo[i].toast_frozenxid = atooid(PQgetvalue(res, i, i_toastfrozenxid));
                tblinfo[i].ncheck = atoi(PQgetvalue(res, i, i_relchecks));
                if (PQgetisnull(res, i, i_owning_tab))
                {
@@ -10044,13 +10061,23 @@ dumpTableSchema(Archive *fout, TableInfo *tbinfo)
                                }
                        }
 
-                       appendPQExpBuffer(q, "\n-- For binary upgrade, set relfrozenxid.\n");
+                       appendPQExpBuffer(q, "\n-- For binary upgrade, set heap's relfrozenxid\n");
                        appendPQExpBuffer(q, "UPDATE pg_catalog.pg_class\n"
                                                          "SET relfrozenxid = '%u'\n"
                                                          "WHERE oid = ",
                                                          tbinfo->frozenxid);
                        appendStringLiteralAH(q, fmtId(tbinfo->dobj.name), fout);
                        appendPQExpBuffer(q, "::pg_catalog.regclass;\n");
+
+                       if (tbinfo->toast_oid)
+                       {
+                               /* We preserve the toast oids, so we can use it during restore */
+                               appendPQExpBuffer(q, "\n-- For binary upgrade, set toast's relfrozenxid\n");
+                               appendPQExpBuffer(q, "UPDATE pg_catalog.pg_class\n"
+                                                                 "SET relfrozenxid = '%u'\n"
+                                                                 "WHERE oid = '%u';\n",
+                                                                 tbinfo->toast_frozenxid, tbinfo->toast_oid);
+                       }
                }
 
                /* Loop dumping statistics and storage statements */

diff --git a/src/bin/pg_dump/pg_dump.h b/src/bin/pg_dump/pg_dump.h
index 3339bf75623b943ab6e6150faffc5df9275d2cb7..390b20cf1aa6bcea0fe21f5471a30ed63965e53f 100644 (file)
--- a/src/bin/pg_dump/pg_dump.h
+++ b/src/bin/pg_dump/pg_dump.h
@@ -227,6 +227,8 @@ typedef struct _tableInfo
        bool            hastriggers;    /* does it have any triggers? */
        bool            hasoids;                /* does it have OIDs? */
        uint32          frozenxid;              /* for restore frozen xid */
+       Oid                     toast_oid;              /* for restore toast frozen xid */
+       uint32          toast_frozenxid;/* for restore toast frozen xid */
        int                     ncheck;                 /* # of CHECK expressions */
        /* these two are set only if table is a sequence owned by a column: */
        Oid                     owning_tab;             /* OID of table owning sequence */