PQresultErrorField   90 ext/pdo_pgsql/php_pdo_pgsql_int.h #define pdo_pgsql_sqlstate(r) PQresultErrorField(r, PG_DIAG_SQLSTATE)
PQresultErrorField 4673 ext/pgsql/pgsql.c 		field = (char *)PQresultErrorField(pgsql_result, (int)fieldcode);