ActiveRecord的:: StatementInvalid。PG错误的问题?

内容来源于 Stack Overflow,并遵循CC BY-SA 3.0许可协议进行翻译与使用

  • 回答 (2)
  • 关注 (0)
  • 查看 (51)

我试图从Project模型中找到一个项目,Project.find(id)但它给我ActiveRecord::StatementInvalid错误

 PG::Error: ERROR: prepared statement "a1" already exists : SELECT COUNT(*) FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace WHERE c.relkind in ('v','r') AND c.relname = $1 AND n.nspname = ANY (current_schemas(false))
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/postgresql_adapter.rb:1180:in `prepare'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/postgresql_adapter.rb:1180:in `prepare_statement'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/postgresql_adapter.rb:1144:in `exec_cache'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-     3.2.2/lib/active_record/connection_adapters/postgresql_adapter.rb:664:in `block in exec_query'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `block in log'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activesupport-3.2.2/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/abstract_adapter.rb:275:in `log'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/postgresql_adapter.rb:662:in `exec_query'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/postgresql_adapter.rb:797:in `table_exists?'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/connection_adapters/schema_cache.rb:30:in `table_exists?'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/model_schema.rb:223:in `table_exists?'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/attribute_methods/primary_key.rb:75:in `get_primary_key'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/attribute_methods/primary_key.rb:60:in `reset_primary_key'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/attribute_methods/primary_key.rb:49:in `primary_key'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/model_schema.rb:230:in `block in columns'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/model_schema.rb:228:in `map'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/model_schema.rb:228:in `columns'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/model_schema.rb:237:in `columns_hash'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/relation/delegation.rb:7:in `columns_hash'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/relation/finder_methods.rb:330:in `find_one'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/relation/finder_methods.rb:311:in `find_with_ids'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/relation/finder_methods.rb:107:in `find'
/home/deploy/.rvm/gems/ruby-1.9.2-p290@submit_contactpl/gems/activerecord-3.2.2/lib/active_record/querying.rb:5:in `find'
/home/deploy/submit_contactpl/app/workers/php_worker.rb:5:in `perform'
提问于
用户回答回答于

这是Ruby堆栈中的一个错误。

它试图编写一个名为“a1”的语句来检查表/视图的定义(大概是为了你的“项目”表)。它发现一个已经存在的准备好的声明已经存在,并吐出一个错误。它试图准备的查询是好的 - 它返回一个有多少个表具有给定名称的计数。

热门问答

脏字过滤只支持 TIMTextElem 消息,对自定义消息无效,请问有接口可以主动检查吗?

学生路人
推荐
您好,脏字检查的内容包括单聊和群组消息(只检查文本消息 TIMTextElem,不支持对自定义消息 TIMCustomElem 的过滤)、群名片、群组资料(群名称、群简介、群公告)用户资料和好友关系链中 bytes 类型的数据(如昵称、好友备注和好友分组等)。目前没有这样的接口喔...... 展开详请

怎么使用rsa?

Tina

腾讯云 · 产品经理 (已认证)

Go Serverless!
推荐
您好,可以在在本地安装rsa module后,将依赖一起打zip包上传SCF运行。https://pypi.org/project/rsa/ 在本地做SCF项目的编辑和部署,推荐您使用tcf cli,更加方便高效。 https://github.com/tencentyun/tc...... 展开详请

5.17 更新的备案材料下载是怎么回事?

为了减少下载错误的核验单模板,官网文档中《网站真实性核验单》下载入口已经下掉,可以按照如下方式操作: 1、在备案流程中——上传资料——核验单环节下载 2、在了解备案的省份、单位性质后,可在工单中提供对应省份的核验单模板给到你。 ... 展开详请

域名在腾讯备的案,解析的腾讯云,现在想把域名解析到别商家的服务器,腾讯云会把备案注销吗?

software微软、谷歌、腾讯、阿里、百度……
推荐

接入商都是有责任对备案进行定期核查的,核查中如果客户在腾讯云进行了备案未解析腾讯云服务器是需要重新解析腾讯云服务器的,否则会被取消接入,反之解析了服务器未进行备案各家接入商也是有相应的限制的,比如:腾讯云对未在腾讯云备案的域名会进行未备案阻断。

对象存储COS有没有日志功能?

Hyman Wang

腾讯云 · 高级产品经理 (已认证)

推荐已采纳

你的cos 是否开通了 CDN 加速,如果开通了CDN 加速,可以去 CDN 的控制台下: (统计分析 --- 监控 )页面下拉到底部,可以通过 URL 查看流量情况。

对象存储里的视频能在线播放么?

Jinqn

腾讯 · 高级工程师 (已认证)

腾讯云COS前端开发
推荐

所属标签

扫码关注云+社区