--- txtidx.c-orig       Wed Nov 13 17:15:57 2002
+++ txtidx.c    Wed Nov 13 17:33:15 2002
@@ -554,7 +554,7 @@

                numattr = SPI_fnumber(rel->rd_att, trigger->tgargs[i]);
                oidtype = SPI_gettypeid(rel->rd_att, numattr);
-               if (numattr < 0 || (!(oidtype == TEXTOID || oidtype == VARCHAROID)))
+               if (numattr < 0 || (!(oidtype == TEXTOID || oidtype == VARCHAROID || oidtype == BPCHAROID)))
                {
                        elog(NOTICE, "TSearch: can not find field '%s'", trigger->tgargs[i]);
                        continue;