<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 20 Apr 2018, at 18:09, Hollow111 <<a href="mailto:hollow653@gmail.com" class="">hollow653@gmail.com</a>> wrote:</div><div class=""><div dir="ltr" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div class="gmail_quote"><div class=""><br class=""></div><div class="">Yes, that's true this code is needed if any of the </div><div class="">cases in if-clause != 0. But the point is that in Tarantool<br class="">there's always a PRIMARY KEY that is obviously unique<br class="">which means that the second case is always != 0 and</div><div class="">the result of the boolean expression is always not 0,</div><div class="">hence there's no reason for this if-check.<br class=""></div></div></div></div></blockquote><br class=""></div><div>Ok, I got it. You are right: I misunderstood conditions under if-clause.</div><div><br class=""></div><br class=""></body></html>