zOs/TX/PER12

*   We have a table with a unique index i1 on column (c1)
*       and an nonUnique index i2 on (c1, c2) with c2 a smallint.
*   Db2 chooses i1 for a query with c1 and c2 in the where condition,
*       thus the predicates with c2 are stage1.
*            per13 selber testfall, aber mit Daten aus DBTF
credb trg 1
+ ok creDb A540769.TX.GENF(PER12t1) ::f
manual spufi per12exp ==> explain 1 and11 use index 1, but shoud 2
+ wait spufi per12exp
manual sub per12run for runstats ==> error disappears here,
*                                            but not in production