


Age Go driver error on Windows: function age_prepare_cypher(unknown, unknown) does not exist
php小编子墨近期收到读者反馈,在Windows系统上运行Age Go时遇到了驱动程序错误:“函数age_prepare_cypher(未知,未知)不存在”。这个错误会导致游戏无法正常启动,给玩家带来了很多困扰。在本文中,我们将帮助大家解决这个问题,并提供一些可能的解决方案,让大家能够顺利畅玩Age Go。
问题内容
我正在尝试使用 apache age 的 golang 驱动程序在 windows 上运行密码查询。 对于 postgres 服务器,我使用 apache-age docker 映像。
运行示例时,出现以下错误:
ahmar> go run main.go age_wrapper_sample.go sql_api_sample.go # Do cypher query with Age API SELECT * FROM age_prepare_cypher($1, $2); testGraph CREATE (n:Person {name: '%s'}) panic: pq: function age_prepare_cypher(unknown, unknown) does not exist goroutine 1 [running]: main.doWithAgeWrapper({0x1004e94?, 0xc00000a018?}, {0xff0efb?, 0x1?}) C:/Users/ahmar/Desktop/GOlang drivers/samples/age_wrapper_sample.go:43 +0xcb4 main.main() C:/Users/ahmar/Desktop/GOlang drivers/samples/main.go:41 +0x77 exit status 2
当我直接在 postgres 服务器上运行查询时,它们工作正常。另外,其他年龄命令(如 load 'age';
等)正在从驱动程序运行,但 execcypher()
函数不起作用。
当调用 age_prepare_cypher()
函数时,该错误似乎源自 execcypher()
中的 age.go
文件。
注意:我在 linux 上没有遇到此错误。在那里,使用 age go 驱动程序时查询工作正常,并且我得到了预期的输出。
解决方法
最近在此提交中添加了函数 age_prepare_cypher
。它没有添加到图像 apache/age:v1.1.0
中。因此,如果您在提交 42f94e7f36dc084b74ec335536a18173c6fca4cd 处运行示例并连接到镜像 apache/age:v1.1.0
,你会得到错误 panic: pq: function age_prepare_cypher(unknown,unknown) 不存在
。
我使用以下命令运行容器:
docker run \ --name age \ -p 5432:5432 \ -e postgres_user=postgres \ -e postgres_password=agens \ -e postgres_db=postgres \ -d \ apache/age:v1.1.0
然后在提交 42f94e7f36dc084b74ec335536a18173c6fca4cd 上运行示例,无需任何更改: p>
$ go run main.go age_wrapper_sample.go sql_api_sample.go # do cypher query with sql api select * from age_prepare_cypher($1, $2); testgraph create (n:person {name: '%s', weight:%f}) panic: pq: function age_prepare_cypher(unknown, unknown) does not exist
您会看到 sql_api_sample 首先失败;在您的问题中,只有 age_wrapper_sample 失败。所以看来您已经修改了源代码,并且两个示例连接到了不同的数据库。请仔细检查失败示例连接的是哪个数据库,并查看该函数是否在该数据库中定义。您可以使用 \df
检查函数是否存在。这是找不到函数时的输出:
postgres=# \df ag_catalog.age_prepare_cypher List of functions Schema | Name | Result data type | Argument data types | Type --------+------+------------------+---------------------+------ (0 rows)
如果情况并非如此,请描述重现该问题的确切步骤。谢谢!
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