The following is the bank structure for the Forward tracker. The old banks (FTKR, FTPR, FTPX) are preserved (but first two renamed as FTRK, FTEP). FTRX is recycled as FTQX. It is this change in meaning that forces us to rename the banks. The FTREC output will now also include track segments (FZGM) and clusters (FCLP, FCLQ) together with a set of pointer and pointering banks.

                                                      DDL's for the banks are in new ddl

Notes

(The bank structure pre-upgrade will also be modified by the inclusion of the new segment and cluster banks see: Modified Old Banks)

• We will have eighteen banks in the output from FTREC:

		FTRK	FTEP FTSP
	FTZX	FZGM	FZCP
	FZPX	FCLP	FCPP
	FSQX	FCLQ	FCQP
	FTPX FCPX	FRPE
	FTQX FCQX	FRQE

DDL's for the banks are also in new ddl

Where possible, I have tried to adhere to a naming convention:

• All banks begin with F (H1 requirement)
• Pointering banks have form F--P
• Pointer banks F--X
• Middle two letters in pointer/pointering banks
• The first indicates the 'source' bank and , where possible the second the target
• T:track   Z:segment   C:cluster   E:hits   P:generic old planars  Q:generic new planars
• Note: due to name conflicts, we can't use S as a second letter!
• This doesn't quite work because of the need to have separate branches into the old and new planars
• Following advice from Steve Burke, I have checked (04/04/01) that the 18 names do not conflict with existing banks by searching:
• h1rec    (h1rec9)
• h1sim   (h1sim30924)
• h1text   (h1text30529)
• default DB

• The F--P and F--X banks are parallel to the source and target banks respectively. (their relationships to the source and target banks are D1T1).N.B. Exception: FTEP and FTSP are DMT1 because the track bank has two rows (beginning and end parameters) pointing to just one row in the F--P banks.
• the relationship between F--P and F--X is D1TM as the target F--X banks contain the implicit NEXT relationship: the entry in each row points to the next object belonging to the list.
• The old FTPX banks actually had two columns; one with the INXT relation and the other used to store the drift sign. The same structure will be used for FCPX and FCQX banks. Note that these and the other F--X are circular , i.e. INXT for the last hit in the object is the row number of the first. This means that the number-of-things column in the F--P banks is strictly speaking redundant. We keep it anyway because it is convenient.

Here are provisional DDLs:

          new ddl    to be completed