[WWcvs] webwork2: backport (jj): Add more indexing, small disk space expense and hopefully more speed.

[Sam H. v. a. <we...@ma...>]

Log Message:
-----------
backport (jj): Add more indexing, small disk space expense and hopefully 
more speed.

Tags:
----
rel-2-4-dev

Modified Files:
--------------
    webwork2/bin:
        NPL-update

Revision Data
-------------
Index: NPL-update
===================================================================
RCS file: /webwork/cvs/system/webwork2/bin/NPL-update,v
retrieving revision 1.1.2.3
retrieving revision 1.1.2.4
diff -Lbin/NPL-update -Lbin/NPL-update -u -r1.1.2.3 -r1.1.2.4
--- bin/NPL-update
+++ bin/NPL-update
@@ -102,6 +102,8 @@
 	number int(3),
 	name varchar(127) NOT NULL,
 	page int(4),
+	KEY (textbook_id, name),
+	KEY (number),
 	PRIMARY KEY (chapter_id)
 '],
 ['NPL-section', '
@@ -110,6 +112,8 @@
 	number int(3),
 	name varchar(127) NOT NULL,
 	page int(4),
+	KEY (chapter_id, name),
+	KEY (number),
 	PRIMARY KEY section (section_id)
 '],
 ['NPL-problem', '