void zebraExplain_close (ZebraExplainInfo zei);
int zebraExplain_curDatabase (ZebraExplainInfo zei, const char *database);
int zebraExplain_newDatabase (ZebraExplainInfo zei, const char *database,
void zebraExplain_close (ZebraExplainInfo zei);
int zebraExplain_curDatabase (ZebraExplainInfo zei, const char *database);
int zebraExplain_newDatabase (ZebraExplainInfo zei, const char *database,