查询得到值域:visitParamExtractRaw('{"abc":"\n\u0000"}', 'abc') = "{"abc":"\n\u0000"}";
visitParamExtractString('{"abc":"\n\u0000"}', 'abc') = ' '
content json 格式 内容 : {“phone”:'132111111111111','bb':'1234566','cc':'uuuuuuuuuuu'}
表test 查询在content 字段中phone ='132111111111111'的语句是:
select * from test where visitParamExtractString(content ,'phone')='132111111111111'