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Add an option to AlterTableCreateToastTable() to allow its caller to force

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a toast table to be built, even if the sum-of-column-widths calculation
indicates one isn't needed.  This is needed by pg_migrator because if the
old table has a toast table, we have to migrate over the toast table since
it might contain some live data, even though subsequent column drops could
mean that no recently-added rows could require toasting.
This commit is contained in:
Tom Lane
2009-05-07 22:58:28 +00:00
parent 48caf91b66
commit 1e06ed1abe
6 changed files with 31 additions and 19 deletions
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4
src/backend/commands/cluster.c
View File

@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.183 2009/03/31 22:12:46 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.184 2009/05/07 22:58:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -741,7 +741,7 @@ make_new_heap(Oid OIDOldHeap, const char *NewName, Oid NewTableSpace)
if (isNull)
reloptions = (Datum) 0;
}
AlterTableCreateToastTable(OIDNewHeap, reloptions);
AlterTableCreateToastTable(OIDNewHeap, reloptions, false);
if (OidIsValid(toastid))
ReleaseSysCache(tuple);

4
src/backend/commands/tablecmds.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.281 2009/03/31 22:12:47 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.282 2009/05/07 22:58:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -2584,7 +2584,7 @@ ATRewriteCatalogs(List **wqueue)
(tab->subcmds[AT_PASS_ADD_COL] ||
tab->subcmds[AT_PASS_ALTER_TYPE] ||
tab->subcmds[AT_PASS_COL_ATTRS]))
AlterTableCreateToastTable(tab->relid, (Datum) 0);
AlterTableCreateToastTable(tab->relid, (Datum) 0, false);
}
}