bastman

https://blog.timescale.com/tutorials/how-to-install-psql-on-mac-ubuntu-debian-windows/

bastman

SELECT my_id, COUNT(my_id) 
FROM my_table
GROUP BY my_id
HAVING COUNT(my_id) > 1;

bastman

$ kubectl create job --from=cronjob/<CRONJOB-NAME> <NEW-JOB-NAME>

e.g.:
$ kubectl create job --from=cronjob/my-cron my-cron-manual-001


function k8s-cronjob-run() {
  source_cronjob_name=$1
  [ -z "$source_cronjob_name" ] && echo "Please provide source-cronjob-name !" && return
  sink_run_id=$(date -u +"%Y-%m-%dt%H.%M.%Sz")

bastman

• https://www.charlesproxy.com/
• https://proxyman.io/
• https://mitmproxy.org/

bastman

Images[].{a:length(BlockDeviceMappings), b:@} | [?a>=`1`]
Images[?length(BlockDeviceMappings)>=`0`]

bastman

$ gradle init --type kotlin-application --dsl kotlin

bastman

fun PlatformTransactionManager.transactionTemplate(propagationBehavior:Int = TransactionDefinition.PROPAGATION_REQUIRED) = TransactionTemplate(this)
        .apply {
            this.propagationBehavior=propagationBehavior
        }

fun <T>TransactionTemplate.tryExecute(block:(TransactionStatus)->T):Try<T> = Try { this.execute(block) as T }

@Component
class MyTx() {

bastman

import java.math.*
fun main() {
    println("Hello, world!!!")
    val myValue=-1.25
    val out = BigDecimal(myValue).setScale(1, RoundingMode.HALF_UP).toDouble();
    println("$out")
}

bastman

$ sdk install gradle 6.1.1
$ sdk use gradle 6.1.1
$ gradle wrapper --gradle-version=6.1.1
$ ./gradlew init --type kotlin-application --dsl kotlin

bastman

// phantom types
// https://proandroiddev.com/phantom-types-in-kotlin-afd3f59fde10


sealed class DoorState
object Open: DoorState()
object Closed: DoorState()

/*
class Door(val state: DoorState) {