Execute Several database queries (promises) sequentially

Green Cloak Guy :

The database queries themselves are not the issue - they work fine.

The problem is, I need to execute all of them sequentially:

DELETE FROM myTable;
INSERT INTO myTable(c1, c2, c3) VALUES (x, y, z);
SELECT * FROM myTable;

And I can't figure out how to do that in Node, no matter what I try. This question seems to be the most-trafficked solution, and it would have me do something like this (where client is from pg and should be returning promises):

// client is my database client, has already been initialized
// f is an object corresponding to my database
var res;
Promise.resolve()
      .then(() => {
          console.log("Deleting");
          return client.query("DELETE FROM FileFormat");
      })
      .then(() => {
        console.log("Inserting");
        return client.query("INSERT INTO myTable(c1, c2, c3) VALUES ($1, $2, $3)", [f.x, f.y, f.z]);
      })
      .then(() => {
        console.log("Selecting");
        return client.query("SELECT * FROM FileFormat").then((err, result) => res = result.rows)
      })
      .then(() => {
        console.log("Finished");
        console.log(res);
      })

I would expect it to print Deleting, then Inserting, then Selecting, then Finished, then the data I just inserted into the database.

Instead, it's printing Deleting and then doing nothing.

I don't want to chain client.query.then(client.query.then(...)) infinitely, because that makes my code grow arbitrarily far indented. I would rather keep my code as flat as possible, and execute these calls sequentially, waiting for each one to finish before starting the next. How do I do that?

Jorge Armando Palm :

Answer from my comments to the original question

The client might not actually be resolving the promises which would cause this behavior. If you remove all of the client.query you will see that all of the logs are going to look as you expect. Your Javascript code is already doing what you want and the problem seems to be with the PG client.