PgHero Rails - 专栏＆＃34; pid＆＃34;不存在

Question

我正在尝试在应用程序中设置PgHero。我一直在跟踪错误

Started GET "/pghero" for 127.0.0.1 at 2014-09-09 12:35:41 +0530 Processing by PgHero::HomeController#index as HTML Geokit is using the domain: localhost (3.9ms) SELECT COUNT(*) AS count FROM pg_extension WHERE extname = 'pg_stat_statements' CACHE (0.0ms) SELECT COUNT(*) AS count FROM pg_extension WHERE extname = 'pg_stat_statements' (1.5ms) SELECT pid, state, application_name AS source, age(now(), xact_start) AS duration, waiting, query, xact_start AS started_at FROM pg_stat_activity WHERE query <> '<insufficient privilege>' AND state <> 'idle' AND pid <> pg_backend_pid() AND now() - query_start > interval '1 minutes' ORDER BY query_start DESC PG::Error: ERROR: column "pid" does not exist LINE 1: SELECT pid, state, application_name AS source, age(now(), xa... ^ : SELECT pid, state, application_name AS source, age(now(), xact_start) AS duration, waiting, query, xact_start AS started_at FROM pg_stat_activity WHERE query <> '<insufficient privilege>' AND state <> 'idle' AND pid <> pg_backend_pid() AND now() - query_start > interval '1 minutes' ORDER BY query_start DESC

我按照documentation

中提到的所有步骤和疑难解答进行了操作

postgresql.conf中

shared_preload_libraries = 'pg_stat_statements' custom_variable_classes = 'pg_stat_statements' pg_stat_statements.track = all

重启PG服务器后，我使用CREATE extension pg_stat_statements;创建了扩展程序，然后使用SELECT pg_stat_statements_reset();

重置统计信息

在我重新启动Rails服务器并点击/pghero后出现同样的错误。

看起来像pgsql问题。我不擅长pg admin。有人可以告诉我解决方法吗？

Answer 1

使用PostgreSQL 9.2，或查看是否有支持9.1的较旧的pghero版本。鉴于以下情况似乎没有：

  

支持PostgreSQL 9.2 +

就在README顶部附近。

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错误说明：

pid中的pg_stat_activity列在PostgreSQL 9.1及更早版本上被命名为procpid。这个工具似乎不检查PostgreSQL版本并使用适当的名称，它只是假设它正在与9.2或更新的对话。

因此，您可以向PgHero添加SELECT current_setting('server_version_num')值的检查，以便切换到旧列名称，并根据需要提交拉取请求。

就我个人而言，我只是升级到9.3。