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Clarify pg_upgrade's creation of the map file structure. Also clean

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up pg_dump's calling of pg_upgrade_support functions.
This commit is contained in:
Bruce Momjian
2011-01-05 11:37:08 -05:00
parent 66a8a0428d
commit 5cff5b5779
4 changed files with 69 additions and 80 deletions
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43
src/bin/pg_dump/pg_dump.c
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@ -2354,34 +2354,37 @@ binary_upgrade_set_relfilenodes(PQExpBuffer upgrade_buffer, Oid pg_class_oid,
"\n-- For binary upgrade, must preserve relfilenodes\n");
if (!is_index)
{
appendPQExpBuffer(upgrade_buffer,
"SELECT binary_upgrade.set_next_heap_relfilenode('%u'::pg_catalog.oid);\n",
pg_class_relfilenode);
/* only tables have toast tables, not indexes */
if (OidIsValid(pg_class_reltoastrelid))
{
/*
* One complexity is that the table definition might not require the
* creation of a TOAST table, and the TOAST table might have been
* created long after table creation, when the table was loaded with
* wide data. By setting the TOAST relfilenode we force creation of
* the TOAST heap and TOAST index by the backend so we can cleanly
* migrate the files during binary migration.
*/
appendPQExpBuffer(upgrade_buffer,
"SELECT binary_upgrade.set_next_toast_relfilenode('%u'::pg_catalog.oid);\n",
pg_class_reltoastrelid);
/* every toast table has an index */
appendPQExpBuffer(upgrade_buffer,
"SELECT binary_upgrade.set_next_index_relfilenode('%u'::pg_catalog.oid);\n",
pg_class_reltoastidxid);
}
}
else
appendPQExpBuffer(upgrade_buffer,
"SELECT binary_upgrade.set_next_index_relfilenode('%u'::pg_catalog.oid);\n",
pg_class_relfilenode);
if (OidIsValid(pg_class_reltoastrelid))
{
/*
* One complexity is that the table definition might not require the
* creation of a TOAST table, and the TOAST table might have been
* created long after table creation, when the table was loaded with
* wide data. By setting the TOAST relfilenode we force creation of
* the TOAST heap and TOAST index by the backend so we can cleanly
* migrate the files during binary migration.
*/
appendPQExpBuffer(upgrade_buffer,
"SELECT binary_upgrade.set_next_toast_relfilenode('%u'::pg_catalog.oid);\n",
pg_class_reltoastrelid);
/* every toast table has an index */
appendPQExpBuffer(upgrade_buffer,
"SELECT binary_upgrade.set_next_index_relfilenode('%u'::pg_catalog.oid);\n",
pg_class_reltoastidxid);
}
appendPQExpBuffer(upgrade_buffer, "\n");
PQclear(upgrade_res);