пт, 14 дек. 2018 г. в 14:33, Oleg <lego12239@xxxxxxxxx>: > > Hi, all. > > Do we really need a numeric value placeholders like $1 in command string? It's a syntax defined at the backend side. (https://www.postgresql.org/docs/current/sql-prepare.html) > Construction of such string for complex non-static queries is very annoying. That's why there are libraries like Pgfe (https://github.com/dmitigr/pgfe) or libpqtypes (http://libpqtypes.esilo.com/) > Why do we can't simply use $$ placeholder, which take the next value from an > array of values? Because $$ means a dollar-quoted opening tag (https://www.postgresql.org/docs/current/sql-syntax-lexical.html#SQL-SYNTAX-DOLLAR-QUOTING)
