In one of my Postgres Transaction (executing a procedure), I'm using more than 50 temp tables and for each temp table it is creating pg_toast_temptableOID, pg_toast_temptableOID_index with AccessExclusiveLock and fastpath = false for these pg_toast tables. It is creating slowness…
I'm trying to connect my python container which is a web scrape and then upload the data to the postgresql container (database). This is the error I get from the python container. Everything else runs good except this. I use…
$ strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX_3.4.30 GLIBCXX_3.4.30 Yet, when running another application on the same docker container: org.postgresql.util.PSQLException: ERROR: could not load library "/usr/lib/postgresql/13/lib/llvmjit.so": /lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /lib/x86_64-linux-gnu/libz3.so.4) The llvvjit.so file is also present: # ls…
I have started the working on transaction concept of database but, I don't know when to use transaction and when we should not? Suppose, If I am running simple SELECT * FROM table_name query. So, Do I have to use…
Is there a built-in function to truncate values of one type to fit the range of another type? E.g casting a INTEGER to SMALLINT. This might fail if the INTEGER is larger than SMALLINT can hold. I would like the…
I was developing a function for Apache AGE that allows us to store graphs, a PostgreSQL extension, to return an adjacency matrix from a given graph. I used SPI to connect to the database and to retrieve the data from…
Imaging a query that delivers "posts" in a specific time period between "from" and "to". A simple query. Additionally, I need to get ONE record BEFORE and ONE record AFTER what the original query specified. For example, a table holds…
I was thinking on developing a function for age that returns a graph's adjacency matrix. An adjacency matrix stores the number of edges between two nodes. The complexity to check if an edge exists within an adjacency matrix is O(1),…
I'm running a clojure application which needs to access a local database. The clojure application is using jdbc: :dependencies [[org.clojure/clojure "1.10.0"] ... [org.clojure/java.jdbc "0.7.12"] [org.postgresql/postgresql "42.3.3"]] The application works as expected when run directly on a host with a version…
I have a csv file with several columns having a datetime value with a format like this: '2008-12-03-18.01.46.000916'. I am trying to import the data using the import capability built in DBeaver and also using postgresql COPY statement. Both fail.…