postgresql

Linking Django and Postgresql with Docker

由 一笑奈何 提交于 2021-02-04 10:15:00
问题 I have two Docker containers. The first one is Postgresql container, which I run using the following command. sudo docker run -v /home/mpmsp/project/ezdict/postgresql/data:/var/lib/postgresql/data -p 127.0.0.1:5432:5432 -name my-postgres -d postgres It is based on official image and it is working perfectly, I can connect to Postgresql from the host. The second container is a container with my Django application. The image is built using the following Dockerfile (based on this image): FROM

Linking Django and Postgresql with Docker

由 亡梦爱人 提交于 2021-02-04 10:12:16
问题 I have two Docker containers. The first one is Postgresql container, which I run using the following command. sudo docker run -v /home/mpmsp/project/ezdict/postgresql/data:/var/lib/postgresql/data -p 127.0.0.1:5432:5432 -name my-postgres -d postgres It is based on official image and it is working perfectly, I can connect to Postgresql from the host. The second container is a container with my Django application. The image is built using the following Dockerfile (based on this image): FROM

Linking Django and Postgresql with Docker

由 痞子三分冷 提交于 2021-02-04 10:11:50
问题 I have two Docker containers. The first one is Postgresql container, which I run using the following command. sudo docker run -v /home/mpmsp/project/ezdict/postgresql/data:/var/lib/postgresql/data -p 127.0.0.1:5432:5432 -name my-postgres -d postgres It is based on official image and it is working perfectly, I can connect to Postgresql from the host. The second container is a container with my Django application. The image is built using the following Dockerfile (based on this image): FROM

Linking Django and Postgresql with Docker

由 偶尔善良 提交于 2021-02-04 10:09:53
问题 I have two Docker containers. The first one is Postgresql container, which I run using the following command. sudo docker run -v /home/mpmsp/project/ezdict/postgresql/data:/var/lib/postgresql/data -p 127.0.0.1:5432:5432 -name my-postgres -d postgres It is based on official image and it is working perfectly, I can connect to Postgresql from the host. The second container is a container with my Django application. The image is built using the following Dockerfile (based on this image): FROM

Postgres server is not responding to a nodejs request

由 隐身守侯 提交于 2021-02-04 08:14:25
问题 I have access to a remote postgres DB from pgAdmin4 and I also could access from nodejs using a Mac. Right now I'm using the same code to access the DB in Windows. The code for my connection is the following: const { Client } = require('pg'); //Importing the Postgres package const hosts= require('../hosts'); //Using the file containig all hosts const connectionData = { //Begin creating the connection settings object host: hosts.DBHost, //DB host port: hosts.DBPort, //DB hosts port database:

saving python object in postgres table with pickle

由 半腔热情 提交于 2021-02-04 07:31:12
问题 I have a python script which creates some objects. I would like to be able to save these objects into my postgres database for use later. My thinking was I could pickle an object, then store that in a field in the db. But I'm going round in circles about how to store and retrieve and use the data. I've tried storing the pickle binary string as text but I can't work out how to encode / escape it. Then how to load the string as a binary string to unpickle. I've tried storing the data as bytea

update vachar column to date in postgreSQL

由 半城伤御伤魂 提交于 2021-02-04 06:31:07
问题 Trying to update a column with varchar datatype e.g. '1950-08-14' to a date datatype using UPDATE tablename SET columnname = to_date(columnname, 'YYYY-MM-DD'); or ALTER TABLE tablename ALTER COLUMN columnname TYPE DATE USING to_date(columnname, 'YYYY-MM-DD'); but both return the error message ERROR: invalid value "columnname" for "YYYY" DETAIL: Value must be an integer. Referencing http://www.postgresql.org/docs/9.4/static/functions-formatting.html 回答1: The query: ALTER TABLE tablename ALTER

update vachar column to date in postgreSQL

由 北慕城南 提交于 2021-02-04 06:28:39
问题 Trying to update a column with varchar datatype e.g. '1950-08-14' to a date datatype using UPDATE tablename SET columnname = to_date(columnname, 'YYYY-MM-DD'); or ALTER TABLE tablename ALTER COLUMN columnname TYPE DATE USING to_date(columnname, 'YYYY-MM-DD'); but both return the error message ERROR: invalid value "columnname" for "YYYY" DETAIL: Value must be an integer. Referencing http://www.postgresql.org/docs/9.4/static/functions-formatting.html 回答1: The query: ALTER TABLE tablename ALTER

金灿灿的季节

由 夙愿已清 提交于 2021-02-04 04:26:14
在这个金灿灿的收获季节，经过 Apache DolphinScheduler PPMC 们的推荐和投票，Apache DolphinScheduler 收获了 5 位新Committer 。他们是：nauu(朱凯)、Rubik-W(温合民)、gabrywu、liwenhe1993、clay4444。 对于成为 Committer ，小伙伴们说道： 朱凯 ： 非常荣幸能够成为DolphinSchedule 的 Committer。这既是一份喜悦，也是一份责任。我将以终为始，继续打怪升级，助力 DS 早日毕业。 温合民 ： 很荣幸成为DS Committer团队的一员。通过技术调研了解到DS，最终选型决定引入DS，高效的社区支持使项目最终顺利落地。DS是我参与开源的第一个项目，深受益于开源，同时也想为开源做一些力所能及的贡献，希望未来能更多的为DS添砖加瓦，愿DS顺利毕业。 社区介绍： Apache DolphinScheduler 是一个非常多样化的社区，至今贡献者已近100名， 他们分别来自 30 多家不同的公司。 微信群用户3000人。 Apache DolphinScheduler 部分用户案例(排名不分先后) 已经有300多家企业和科研机构在使用DolphinScheduler，来处理各类调度和定时任务，另有 近500家 公司开通了海豚调度的试用： Apache

postgresql主从切换(promote方式主从切换)

由 你离开我真会死。 提交于 2021-02-03 08:04:27
主：192.168.1.130 从:192.168.1.131 1、主备库进程查看 主库 [postgres@localhost data]$ pg_controldata /opt/postgresql-11.6/data/| grep 'Database cluster state' Database cluster state: in production [postgres@localhost data]$ 备库 [postgres@localhost data]$ pg_controldata /opt/postgresql-11.6/data/| grep 'Database cluster state' Database cluster state: in archive recovery [postgres@localhost data]$ 2、停掉主库 pg_ctl -D /opt/postgresql-11.6/data/ -l /opt/postgresql-11.6/log/postgres.log stop 查看状态已经处于stop状态 [postgres@localhost data]$ pg_controldata /opt/postgresql-11.6/data/| grep 'Database cluster state' Database
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