Pgloader load file for migrating from PlanetScale MySQL to Neon PostgreSQL

migrate.load

LOAD DATABASE
     FROM mysql://MY_PLANETSCALE_USERNAME:MY_PLANETSCALE_PASSWORD@aws.connect.psdb.cloud/MY_DATABASE?sslmode=require
     INTO postgres://MY_NEON_USERNAME:endpoint=ep-MY_ENDPOINT_ID;MY_NEON_PASSWORD@ep-MY_ENDPOINT_ID.eu-central-1.aws.neon.tech/MY_DATABASE?sslmode=require

 WITH include drop, create tables, quote identifiers

 ALTER schema 'MY_DATABASE' rename to 'public'
;

Tip

You get those connection strings from PlanetScale and Neon services.

Note

BUT for the Neon you need to define that endpoint for the pgloader

See https://neon.tech/docs/import/migrate-mysql

I struggled with:

• Using Pgloader on my M1 Mac - I needed to create Ubuntu virtual machine and install Pgloader from source
• Setting endpoint in the INTO line - Found the info from that URL ^^
• Getting table names as they were in the source (e.g. TableName instead tablename) - sorted with that WITH line

What I did on Ubuntu virtual machine (roughly):

apt remove pgloader -y
git clone https://github.com/dimitri/pgloader.git
apt-get install sbcl unzip libsqlite3-dev make curl gawk freetds-dev libzip-dev
cd pgloader
make pgloader
./build/bin/pgloader --help
pgloader version "3.6.2079646"
compiled with SBCL 2.2.9.debian

Running the migration:

/usr/local/bin/pgloader migrate.load