Allow hash, btree and dictionary as identifiers.
@@ -2641,6 +2641,7 @@ String identifier() : { }
| <ATTRIBUTE>
| <BODY>
| <BOLDING>
+ | <BTREE>
| <COMPRESSION>
| <COMPRESSIONLEVEL>
| <COMPRESSIONTHRESHOLD>
@@ -2648,6 +2649,7 @@ String identifier() : { }
| <CREATEIFNONEXISTENT>
| <DENSEPOSTINGLISTTHRESHOLD>
| <DESCENDING>
+ | <DICTIONARY>
| <DIRECT>
| <DOCUMENT>
| <DOCUMENTSUMMARY>
@@ -2669,6 +2671,7 @@ String identifier() : { }
| <FULL>
| <FUNCTION>
| <GRAM>
+ | <HASH>
| <HEADER>
| <HUGE>
| <ID>
