Zhihong Yu writes:
> I was looking at this check in src/backend/parser/parse_utilcmd.c w.r.t.
> constraint:
> ...
> If the index has DESC sorting order, why it cannot be used to back a
> constraint ?
> Some concrete sample would help me understand this.
Please read the nearby comments, particular
Hi,
I was looking at this check in src/backend/parser/parse_utilcmd.c w.r.t.
constraint:
if (indclass->values[i] != defopclass ||
attform->attcollation != index_rel->rd_indcollation[i]
||
attoptions != (Datum) 0 ||
index_r
