1 ALTER-INDEX
2? index-schema-"."
3 index-name FOR-TEXT
3? |update-characteristics|
4? |storage-options|
5? |connection-options|

storage-options:

1? INDEX-DIRECTORY directory
2? WORK-DIRECTORY workdirectory
3? CACHE TABLE
3.1 PERSISTENT
3.1.1? IN directory
3.1 TEMPORARY
4? PCTFREE percentage
5? MAXIMUM CACHE SIZE memsize

update-characteristics:

1? UPDATE-FREQUENCY
1.1 NONE
1.1 |update-frequency|
2? UPDATE-MINIMUM minchanges
3? COMMITCOUNT-FOR-UPDATE count

update-frequency:

1 D (
2 *
2+ ,
2 0...6
3 ) H (
2 *
2+ ,
2 0...23
3 ) M (
2+ ,
2 0...59
3 )

connection-options:

1? CONNECT-TO database-name
1.1? USER userid USING password