No, there’s no direct way to do that. And there’s a reason for it – every query should list all the fields it needs in whatever order (and format etc) it needs them, thus making the order of the columns in one table insignificant. If you really need to do that I can think of … Read more
You can avoid this issue by adding an unneeded ORDER BY clause to the query. SELECT * FROM object_values WHERE (objectID = 53708) ORDER BY timestamp, objectID DESC limit 1;
The issue ended up being uwsgi’s forking. When working with multiple processes with a master process, uwsgi initializes the application in the master process and then copies the application over to each worker process. The problem is if you open a database connection when initializing your application, you then have multiple processes sharing the same … Read more
According to the source code located here, starting at line 850, PostgreSQL doesn’t explicitly limit the number of arguments. The following is a code comment from line 870: /* * We try to generate a ScalarArrayOpExpr from IN/NOT IN, but this is only * possible if the inputs are all scalars (no RowExprs) and there … Read more
If it is an ad hoc task Create a temporary table with all the columns in the input file create temporary table t (x1 integer, … , x10 text) Copy from the file into it: copy t (x1, … , x10) from ‘/path/to/my_file’ with (format csv) Now insert into the definitive table from the temp: … Read more
Go inside bin folder in C drive where Postgres is installed. run following command in git bash or Command prompt: pg_ctl.exe restart -D “<path upto data>” Ex: pg_ctl.exe restart -D “C:\Program Files\PostgreSQL\9.6\data” Another way: type “services.msc” in run popup(windows + R). This will show all services running Select Postgres service from list and click on … Read more
Have you tried running this before running bundle install? bundle config build.pg –with-pg-config=/usr/pgsql-9.1/bin/pg_config See http://bundler.io/v1.3/bundle_config.html
For migration, it is easier to disable all triggers with: SET session_replication_role=”replica”; And after migration reenable all with SET session_replication_role=”origin”;
You want to use postgresql’s replace function: replace(string text, from text, to text) for instance : UPDATE <table> SET <field> = replace(<field>, ‘cat’, ‘dog’) Be aware, though, that this will be a string-to-string replacement, so ‘category’ will become ‘dogegory’. the regexp_replace function may help you define a stricter match pattern for what you want to … Read more
It’s a valid question don’t know why people feel “doesn’t seem possible to answer that question”. So, here’s how I do what you are trying to do: Pull postgres image from Docker Hub docker pull postgres:latest Run the container using the below command docker run -p 5432:5432 postgres Using docker’s inspect command find the IP … Read more