Hello Tom,
Quoting "Tom Lane" <tgl@sss.pgh.pa.us>:
> Either the SK_ROW_MEMBER flag is entirely wrong..
Uhm.. yes, that's it. I've been under the impression that for an index
scan with multiple attributes, I need to assemble scan keys with
SK_ROW_MEMBER, SK_ROW_END and SK_ROW_HEADER. I now realize that's
plain wrong and I can simply provide as many scan keys as I have
attributes to scan for, without fiddling with any flag or subtype. The
code in question now uses the simpler ScanKeyInit() and looks as
follows:
for (i = 0; i < numKeys; i++) { attnum = idx_info->ii_KeyAttrNumbers[i];
get_sort_group_operators(tdesc->attrs[attnum - 1]->atttypid, false, true,
false, NULL, &eq_func, NULL);
ScanKeyInit(&skeys[i], i + 1, BTEqualStrategyNumber, get_opcode(eq_func), values[attnum -
1]); }
Thank you very much for your help, that quickly got me on track again.
Regards
Markus Wanner
