Add the ability to create indexes 'concurrently', that is, without

blocking concurrent writes to the table.  Greg Stark, with a little help
from Tom Lane.

src/backend/parser/keywords.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.175 2006/08/12 02:52:05 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.176 2006/08/25 04:06:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -84,6 +84,7 @@ static const ScanKeyword ScanKeywords[] = {
 	{"comment", COMMENT},
 	{"commit", COMMIT},
 	{"committed", COMMITTED},
+	{"concurrently", CONCURRENTLY},
 	{"connection", CONNECTION},
 	{"constraint", CONSTRAINT},
 	{"constraints", CONSTRAINTS},