Re: partnum??
Posted in 1998
Art S. Kagel — — source: Informix-list mailing list archive (1991-1998)
Svend E. Hansen wrote: > > Hello there > I am rather interested in how the partnum used in the sysmaster database > is composed, so far i have identified that partnum/1000000 = dbspace. > yours respectfully Actually that is: dbsnum = partnum / 0x100000 = partnum / 1048576 The first three hex digits in the partnum represent the dbspace number containing the table's tablespace tablespace entry and the low order five hex digits represent the logical page number within that dbspace. For physical addresses, such as pe_phys in sysptnext, the first three hex digits are the chunk number and the remaining 5 digits are the physical page number within the chunk. Art S. Kagel