* As a side effect, this function acquires AccessShareLock on the target
* namespace. Without this, the namespace could be dropped before our
* transaction commits, leaving behind relations with relnamespace pointing
- * to a no-longer-exstant namespace.
+ * to a no-longer-existent namespace.
*
- * As a further side-effect, if the select namespace is a temporary namespace,
+ * As a further side-effect, if the selected namespace is a temporary namespace,
* we mark the RangeVar as RELPERSISTENCE_TEMP.
*/
Oid