piErrno          28702 ext/sqlite3/libsqlite/sqlite3.c   int *piErrno                    /* OUT: Error number if error occurs */
piErrno          28721 ext/sqlite3/libsqlite/sqlite3.c       if( piErrno ) *piErrno = (iSeek==-1 ? errno : 0);
piErrno          28731 ext/sqlite3/libsqlite/sqlite3.c   if( rc<0 && piErrno ) *piErrno = errno;