How get raw SQL from sequelize migraions - sql

Question

I have a bunch of Sequilize migration files. All looks like:
module.exports = {
up: //up migration
down: //down migration,
};
Is there a programmatically way to get SQL queries from that files? It will be ok to use Node ecosystem. The only requirement do that automatically.
Why do I want do this?
I wan't to create SQL migrations from javascript files to put them into entrypoint of my Postgres base image for local development. And I don't want to put Node.js with Sequelize into my image which depends only on Postgres official base image from Docker Hub.

Answer 1

If you already have a database with the right schema, all you need is the schema. You can use pg_dump command to get the schema
pg_dump.exe -U username -d databasename -s schemaname> myschema.sql
You can now import this schema
psql -d database_name -h localhost -U postgres < myschema.sql

Answer 2

I know you're asking how to get this programatically but just exposing the raw SQL is valuable. I was able to get the raw sql (sorting this out led me to this question) by adding the key logging to the options object.
This is my migration:
await queryInterface.addIndex(
constants.EVENTS_TABLE_NAME,
['created_at'],
{ using: 'brin', concurrently: true, logging: console.log }
);
and the output from the migration:
== 20220311183756-create-brin-index-on-created-at: migrating =======
Executing (default): CREATE INDEX CONCURRENTLY "events_created_at" ON "events" USING brin ("created_at")
== 20220311183756-create-brin-index-on-created-at: migrated (0.019s)
Here is an example from their docs:
await sequelize.query('SELECT 1', {
// A function (or false) for logging your queries
// Will get called for every SQL query that gets sent
// to the server.
logging: console.log,
// If plain is true, then sequelize will only return the first
// record of the result set. In case of false it will return all records.
plain: false,
// Set this to true if you don't have a model definition for your query.
raw: false,
// The type of query you are executing. The query type affects how results are formatted before they are passed back.
type: QueryTypes.SELECT
});