br | line tool for distributed backup | Continuous Backup library

Is there a way in PostgreSQL to take this table:

ID country name values 1 USA John Smith {1,2,3} 2 USA Jane Smith {0,1,3} 3 USA Jane Doe {1,1,1} 4 USA John Doe {0,2,4}

and generate this table from it with the column agg_values:

ID country name values agg_values 1 USA John Smith {1,2,3} {0,1,3,1,1,1,0,2,4} 2 USA Jane Smith {0,1,3} {1,2,3,1,1,1,0,2,4} 3 USA Jane Doe {1,1,1} {1,2,3,0,1,3,0,2,4} 4 USA John Doe {0,2,4} {1,2,3,0,1,3,1,1,1}

Where each row aggregates all values except from the current row and its peers.
So if name = John Smith then agg_values = aggregate of all values where name not = John Smith. Is that possible?

...

I see that jq can calculate addition as simply as jq 'map(.duration) | add' but I've got a more complex command and I can't figure out how to perform this add at the end of it.

I'm starting with data like this:

...

Most of my WordPress websites have a background image in the top fold. These images are the Largest Contentful Paint Element on the page and usually they get loaded last. Somewhere I read that 'Background images are last in line to be grabbed when a page is loaded'. Is it true?
Is it a good idea to use a place holder or image in the place of the background image and then change it later so that the LCP gets loaded quickly like below.

...

I have dynamic region rendering HTML code as below:

...

I am generating lexical analyzer with JLEX. I found a regular expression for string literal from this link and used it in .jflex file same of other expressions. but it gives me this error : unterminated string at the end of the line
StringLiteral = \"(\\.|[^"\\])*\"

can anyone help me please, thanks.

...

Consider this dataframe:

...

I dont know what am I doing wrong... In constructor, I wanna receive a Class of an enum, and I want to return the correct enum, when a value passed as parameter to convert().

...

I am trying to create a shopping cart in JavaScript. When I click on the button, the price of item should increase according to the number of times I have clicked on the button. I've tried the below code but it's not working. The problem is that after clicking few times the multiplication goes like this: suppose initial price =49
49 x 1
49 x 2
94 x 3
282 x 4 (it should be 49 x 4); I have modified the code,it works fine in console.log() but gives different result if I assign the variable newPrice to document.getElementById().innerHTML

...

Details
I'm working on an algo dealing with a multi-dimensional array. If there is a zero, then the elements of the same column, but following arrays will also equal zero. I want to be able to sum the items that are not zeroed out.

...