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Одной из продвинутых возможностей Postgres является возможность написания рекурсивных запросов. Не то чтобы она была сильно продвинутой, но новички о ней часто не слышали, как и о CTE (Common Table Expressions), на основе которых и работает рекурсивность в постгре.
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Importantly, that investor viewpoint is not new. It cycles in when conditions are right (and vice versa). It also brings the ineffective warnings of an overpriced market with it.Looking toward a good 2022 stock market, there is no apparent reason to expect these issues to change.
Telegram is a free app and runs on donations. According to a blog on the telegram: We believe in fast and secure messaging that is also 100% free. Pavel Durov, who shares our vision, supplied Telegram with a generous donation, so we have quite enough money for the time being. If Telegram runs out, we will introduce non-essential paid options to support the infrastructure and finance developer salaries. But making profits will never be an end-goal for Telegram.
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