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-rw-r--r--database/updates.inc1
-rw-r--r--update.php7
2 files changed, 7 insertions, 1 deletions
diff --git a/database/updates.inc b/database/updates.inc
index ea85798c7..d428a6714 100644
--- a/database/updates.inc
+++ b/database/updates.inc
@@ -1424,6 +1424,7 @@ function system_update_167() {
break;
case 'pgsql':
db_change_column($ret, 'vocabulary_node_types', 'type', 'type', 'varchar(32)', array('not null' => TRUE, 'default' => "''"));
+ $ret[] = update_sql("ALTER TABLE {vocabulary_node_types} ADD PRIMARY KEY (vid, type)");
break;
}
diff --git a/update.php b/update.php
index 136058f5a..55c345b1e 100644
--- a/update.php
+++ b/update.php
@@ -78,6 +78,11 @@ function db_add_column(&$ret, $table, $column, $type, $attributes = array()) {
* Changes a column definition. Uses syntax appropriate for PostgreSQL.
* Saves result of SQL commands in $ret array.
*
+ * Please remember, that changing column definition involves adding new column
+ * and dropping old one. This means that any indexes, primary keys and
+ * sequences from the serial-type columns are dropped and might need to be
+ * recreated.
+ *
* @param $ret
* Array to which results will be added.
* @param $table
@@ -91,7 +96,7 @@ function db_add_column(&$ret, $table, $column, $type, $attributes = array()) {
* @param $attributes
* Additional optional attributes. Recognized atributes:
* - not null => TRUE/FALSE
- * - default => NULL/FALSE/value (with or without '', it wont' be added)
+ * - default => NULL/FALSE/value (with or without '', it won't be added)
* @return
* nothing, but modifies $ret parametr.
*/