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package main | |
import ( | |
"context" | |
"fmt" | |
"net/http" | |
"time" | |
"golang.org/x/time/rate" | |
) |
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package main | |
import ( | |
"encoding/json" | |
"flag" | |
"io/ioutil" | |
"log" | |
"net" | |
"os" | |
"os/signal" |
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package main | |
import "fmt" | |
// function to add an array of numbers. | |
func sum(s []int, c chan int) { | |
sum := 0 | |
for _, v := range s { | |
sum += v | |
} |
NOTE: This is a question I found on StackOverflow which I’ve archived here, because the answer is so effing phenomenal.
If you are not into long explanations, see [Paolo Bergantino’s answer][2].
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the\
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)