1) Refactored k2index definition to PG 9.2 format
2) Added k2index to builtin_funcs.ini
3) Added op class family for k2index
4) changed k2index oids to be range 10030-10080 (not used uid range)
5) fixed the NULL pg tuple id issue
6) enable non-primary key pushdown for catalog system table scan
7) ported the tuple id api changes from justin's branch
8) fine tuned some debug log levels
1) Refactored k2index definition to PG 9.2 format 2) Added k2index to builtin_funcs.ini 3) Added op class family for k2index 4) changed k2index oids to be range 10030-10080 (not used uid range) 5) fixed the NULL pg tuple id issue 6) enable non-primary key pushdown for catalog system table scan 7) ported the tuple id api changes from justin's branch 8) fine tuned some debug log levels