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I am struggling to get an interface implementation to be inherited in another class:

I have a generic class that requires compareTo to be implemented. The class is called GenericList and is implemented as:

I've got a very large Plex library of mixed file types on my home server (Ubuntu). I'm attempting to pull the compatible types into a client iTunes library using python. I've got it mounted in Windows 11 as M: using credentials that give me full permissions. Here's the snippet I'm attempting to run:

I have a CSV file (staff) that looks like this:

There is a code chunk I found useful in my project, but I can't get it to build a data frame in the same given/desired format as it prints (2 columns).

The code chunk and desired output:

I am reading LSM indexing in Designing Data-Intensive Applications by Martin Kleppmann.

The author states:

When a write comes in, add it to an in-memory balanced tree data structure (for example, a red-black tree). This in-memory tree is sometimes called a memtable.
When the memtable gets bigger than some threshold—typically a few megabytes —write it out to disk as an SSTable file. This can be done efficiently because the tree already maintains the key-value pairs sorted by key. The new SSTable file becomes the most recent segment of the database. While the SSTable is being written out to disk, writes can continue to a new memtable instance.
In order to serve a read request, first try to find the key in the memtable, then in the most recent on-disk segment, then in the next-older segment, etc.
From time to time, run a merging and compaction process in the background to combine segment files and to discard overwritten or deleted values.

My question is: given that SSTables on disk are immutable, how is sorting guaranteed when new data comes in, that can change the ordering of data in SSTables (not memtable which is in memory)?

For e.g., suppose we have a SSTable on disk which has key-values pairs like [{1:a},{3:c},{4,d}]. Memtable in memory contains [{5,e},{6,f}] (which is sorted using AVL/RB tree). Suppose we now get a new entry: [{2,b}] which should reside between [{1:a}] and [{3:c}]. How would this be handled, if SSTable(s) on disk are immutable? In theory, we could create a new SSTable with [{2,b}] and compaction could later merge them, but wouldn't that break range-queries/reads that we perform before compaction takes place?

Thanks!

Spring Boot tries to auto commit changes in manuell transaction for entity personTransaction1 without calling save method in repository. Changes in personTransaction1 are commited. The method manuellTransaction throw org.springframework.orm.ObjectOptimisticLockingFailureException. The same code with annotation based transaction handling in method transactionByAnnotation work as expected and no changes for variable personTransaction1 were commited. What is the reason why spring try to commit?

I have a list of names 'pattern' that I wish to match with strings in column 'url_text'. If there is a match i.e. True the name should be printed in a new column 'pol_names_block' and if False leave the row empty.

I am trying to iterate through an array of objects and call my API using the value of the object. And then log in to the console. My API is returning the values needed, but the output is this: [ Promise { }, Promise { } ]

My function:

I have a pandas DataFrame with a column containing strings.

(I take the example from Check if string is in a pandas dataframe)