Postgres: substring('foobar' from 2 for 3) #69
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Сейчас нет возможности реализовать подобные функции через OSQL, но это порой требуется сделать.
Поэтому предлагаю фикс для SQLFunction где можно задавать 'склейщиков' между аргументами.
Реализация функции в заголовке будет выглядеть так:
Результат:
substring('foobar' from '2'::int for '3'::int)
который вернет в данном пример 'oob'У кого какие есть предложения, замечания?