RA | RA : A Relational Algebra Interpreter | DB Client library

I have master-slave (primary-standby) streaming replication set up on 2 physical nodes. Although the replication is working correctly and walsender and walreceiver both work fine, the files in the pg_wal folder on the slave node are not getting removed. This is a problem I have been facing every time I try to bring the slave node back after a crash. Here are the details of the problem:

postgresql.conf on master and slave/standby node

** I am implementing role-based access control to my application. There are 3 users(Admin, Teacher, Student) in the application with same attribute so I created a basedUser entity to let them inherit it. I wished to get the user's authority when I select it from the database, so I created a type handler to convert the authority in String type to GrantedAuthority type in the process but I don't know why I keep getting this error: **

nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: Error instantiating interface org.springframework.security.core.GrantedAuthority with invalid types () or values (). Cause: java.lang.NoSuchMethodException: org.springframework.security.core.GrantedAuthority.()] with root cause

java.lang.NoSuchMethodException: org.springframework.security.core.GrantedAuthority.() at java.base/java.lang.Class.getConstructor0(Class.java:3349) ~[na:na] at java.base/java.lang.Class.getDeclaredConstructor(Class.java:2553) ~[na:na] at org.apache.ibatis.reflection.factory.DefaultObjectFactory.instantiateClass(DefaultObjectFactory.java:60) ~[mybatis-3.5.4.jar:3.5.4] at org.apache.ibatis.reflection.factory.DefaultObjectFactory.create(DefaultObjectFactory.java:53) ~[mybatis-3.5.4.jar:3.5.4] at org.apache.ibatis.reflection.factory.DefaultObjectFactory.create(DefaultObjectFactory.java:45) ~[mybatis-3.5.4.jar:3.5.4] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:616) ~[mybatis-3.5.4.jar:3.5.4] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:591) ~[mybatis-3.5.4.jar:3.5.4]

I have been looking for answers to this problem but not getting anywhere close, does anyone know how to solve this problem??

Entity

My code is supposed to print a dictionary containing the letters of the input (s), and assign each character a random number within a certain length (the length of s). When it tries to add a letter that is already in the string, it skips it, but it's not supposed to.

My code:

Yesterday me and a few colleagues were trying to get a toy example for applicative validation in fp-ts to work. We finally got it working with manually storing each interim step in a variable and calling the next step. But it would be way more elegant using the pipe function from fp-ts. Doing it with Either directly works, but does not combine multiple Left values into one (e.g. concatenating arrays with string errors). But with pipe() the ap()-calls want two arguments, but only get one. How do we use pipe correctly here:

Like the Title says, I am trying to read an online data file that is in .tbl format. Here is the link to the data: https://irsa.ipac.caltech.edu/data/COSMOS/tables/morphology/cosmos_morph_cassata_1.1.tbl

I tried the following code

I am trying to process bulk RNA-seq data using salmon through snakemake in the conda/mamba environment.

I am receiving the following error when running snakemake:

i generate random positions above the horizon(az=0-360,alt=0-90)in az/alt and calculate them withradec_to() to RA and DEC. to check the result i retransform them.

so what i don't understand is, why i get around half of coordinates back under the horizon?

There are no issues or errors in the code, but I am trying to print a sales report that contains a lot of data. I only want to print what's displayed on the Datagridview because I have filters for date, month, and year. can someone please help me?

This is what I have:

Greeting, in general the problem is this, I created a web application using React JS, like a database using Firesbase Firestore. Everything worked fine until it was time to update the security rules (they were temporary, well, and time was up). It demanded to immediately change the rules, otherwise the base will stop responding after the expiration of the term. At first, I just extended the temporary rules, but it only worked once, after that all such attempts were in vain. After reading the documentation on writing security rules and looking at a couple of tutorials, I decided to write simple rules allow read: if true; allow write: if false;. In the project, the user does not interact with the base in any way, the text simply comes from the base and everything is essentially, so these rules are more than enough. I also additionally checked these rules on the emulator and everything went well. I saved the rules, but the application did not rise, I tried other options, to the extent that I simply put true everywhere and made the base completely open, but to no avail. I have already tried everything and crawled everything, but I still could not find a solution.

My app code: