在 mysql 表上运行完整搜索

Question

所以我的“mysql 数据库”中已经有一个名为“profiles”的表。我正在尝试根据文本搜索搜索其上的记录/记录。我尝试运行全文搜索，但它没有给我任何东西：

import pymysql
mydb = pymysql.connect( host = 'a' ,  user ="b" ,  passwd = "x" , db = "project_db")  
cursor = mydb.cursor() 

query = """SELECT * FROM profiles WHERE MATCH(c1, c2, c3, c4, c5, c6, c7, c8)
AGAINST('cycle owner' IN NATURAL LANGUAGE MODE)"""

cursor.execute(query)
res = cursor.fetchall()

for r in res:
    print(r)
cursor.close()
mydb.commit()
mydb.close()

输出如下：

---------------------------------------------------------------------------
InternalError                             Traceback (most recent call last)
<ipython-input-16-86948bcd8c0b> in <module>
      6 AGAINST('cycle owner' IN NATURAL LANGUAGE MODE)"""
      7 
----> 8 cursor.execute(query)
      9 res = cursor.fetchall()
     10 

D:\Softwares\Anaconda\lib\site-packages\pymysql\cursors.py in execute(self, query, args)
    168         query = self.mogrify(query, args)
    169 
--> 170         result = self._query(query)
    171         self._executed = query
    172         return result

D:\Softwares\Anaconda\lib\site-packages\pymysql\cursors.py in _query(self, q)
    326         self._last_executed = q
    327         self._clear_result()
--> 328         conn.query(q)
    329         self._do_get_result()
    330         return self.rowcount

D:\Softwares\Anaconda\lib\site-packages\pymysql\connections.py in query(self, sql, unbuffered)
    515                 sql = sql.encode(self.encoding, 'surrogateescape')
    516         self._execute_command(COMMAND.COM_QUERY, sql)
--> 517         self._affected_rows = self._read_query_result(unbuffered=unbuffered)
    518         return self._affected_rows
    519 

D:\Softwares\Anaconda\lib\site-packages\pymysql\connections.py in _read_query_result(self, unbuffered)
    730         else:
    731             result = MySQLResult(self)
--> 732             result.read()
    733         self._result = result
    734         if result.server_status is not None:

D:\Softwares\Anaconda\lib\site-packages\pymysql\connections.py in read(self)
   1073     def read(self):
   1074         try:
-> 1075             first_packet = self.connection._read_packet()
   1076 
   1077             if first_packet.is_ok_packet():

D:\Softwares\Anaconda\lib\site-packages\pymysql\connections.py in _read_packet(self, packet_type)
    682 
    683         packet = packet_type(buff, self.encoding)
--> 684         packet.check_error()
    685         return packet
    686 

D:\Softwares\Anaconda\lib\site-packages\pymysql\protocol.py in check_error(self)
    218             errno = self.read_uint16()
    219             if DEBUG: print("errno =", errno)
--> 220             err.raise_mysql_exception(self._data)
    221 
    222     def dump(self):

D:\Softwares\Anaconda\lib\site-packages\pymysql\err.py in raise_mysql_exception(data)
    107         errval = data[3:].decode('utf-8', 'replace')
    108     errorclass = error_map.get(errno, InternalError)
--> 109     raise errorclass(errno, errval)

InternalError: (1191, "Can't find FULLTEXT index matching the column list")

谁能帮助我，告诉我为什么它没有显示搜索结果，因此给我一个提示？

谢谢！！

Answer 1

为了使用全文搜索，首先需要在相关列上创建全文索引。

您可以使用以下语法将全文索引添加到现有表。

ALTER TABLE table_name  
ADD FULLTEXT(column_name1, column_name2,…)