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constid  int  FOREIGN KEY Ô¼ÊøµÄ ID¡£
fkeyid  int  ¾ßÓÐ FOREIGN KEY Ô¼ÊøµÄ±í¶ÔÏó ID¡£
rkeyid  int  ÔÚ FOREIGN KEY Ô¼ÊøÖÐÒýÓõıí¶ÔÏó ID¡£
fkey  smallint  ÕýÔÚÒýÓõÄÁÐ ID¡£
rkey  smallint  ÒÑÒýÓõÄÁÐ ID¡£
keyno  smallint  ¸ÃÁÐÔÚÒýÓÃÁÐÁбíÖеÄλÖá£
sysindexes
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id  int  ±í ID£¨Èç¹û indid = 0 »ò 255£©¡£·ñÔòΪË÷ÒýËùÊô±íµÄ ID¡£
status  int  ÄÚ²¿ÏµÍ³×´Ì¬ÐÅÏ¢¡£
first  binary(6)  Ö¸ÏòµÚÒ»Ò³»ò¸ùÒ³µÄÖ¸Õë¡£
indid  smallint  Ë÷Òý ID£º
1 = ¾Û¼¯Ë÷Òý
>1 = ·Ç¾Û¼¯
255 = ¾ßÓÐ text »ò image Êý¾ÝµÄ±íÌõÄ¿
 
root  binary(6)  Èç¹û indid >= 1 ºÍ < 255£¬ root ÊÇÖ¸Ïò¸ùÒ³µÄÖ¸Õë¡£Èç¹û indid = 0 »ò indid = 255£¬ root ÊÇÖ¸Ïò×îºóÒ»Ò³µÄÖ¸Õë¡£ 
minlen  smallint  ×îСÐдóС¡£
keycnt  smallint  ¼üµÄÊýÄ¿¡£
groupid  smallint  ÔÚÆäÉÏ´´½¨¶ÔÏóµÄÎļþ×é ID¡£
dpages  int  Èç¹û indid = 0 »ò indid = 1£¬ dpages ÊÇÒÑÓÃÊý¾ÝÒ³µÄ¼ÆÊý¡£Èç¹û indid = 255£¬ÆäÉèÖÃΪ 0¡£·ñÔòÊÇÒÑÓÃË÷ÒýÒ³µÄ¼ÆÊý¡£
reserved  int  Èç¹û indid = 0 »ò indid = 1£¬ reserved ÊÇ·ÖÅ䏸ËùÓÐË÷ÒýºÍ±íÊý¾ÝµÄÒ³¼ÆÊý¡£Èç¹û indid = 255£¬ reserved ÊÇ·ÖÅ䏸 text »ò image Êý¾ÝµÄÒ³¼ÆÊý¡£·ñÔòÊÇ·ÖÅ䏸Ë÷ÒýµÄÒ³¼ÆÊý¡£
used  int  Èç¹û indid = 0 »ò indid = 1£¬ used ÊÇÓÃÓÚËùÓÐË÷ÒýºÍ±íÊý¾ÝµÄ×ÜÒ³Êý¡£Èç¹û indid = 255£¬ used ÊÇÓÃÓÚ text »ò image Êý¾ÝµÄÒ³¼ÆÊý¡£·ñÔòÊÇÓÃÓÚË÷ÒýµÄÒ³¼ÆÊý¡£
rowcnt  bigint  »ùÓÚ indid = 0 ºÍ indid = 1 µÄÊý¾Ý¼¶ÐмÆÊý¡£Èç¹û indid = 255£¬ rowcnt ÉèÖÃΪ 0¡£
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