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Guys, I came on a two-way road and I don’t know which one to go on. The problem is this: I’m started developing an application that is basically similar to a social network, will have chat, Timeline... these things you have on facebook, but is aimed at another business. I would love to use Nodejs + Mongodb for the development of the API, however, some developer friends have already reported problems regarding the need for relationship between Documents, from that I went to look for the alternative of the relational database, I thought in Postgresql, in that comes another doubt, Nodejs is worth it with relational database?
To use Postgres with Sequelize is almost identical with Mysql. problems regarding the need for relationship between Documents - will depend a lot on architecture, Nosql has its advantages especially when it requires scalability. Facebook also uses Apache Cassandra who is a Nosql.
– BrTkCa
Postgres, from version 9 (unless mistaken) has JSON fields, of course it is not a complete implementation "like Mongo", but gives to do a lot of the world
nosql, see that answer. At the end there is a link to these Postgres Sites.– Sidon