GNU/Linux Mint 19.x Install PostgreSQL 12 – Step by step Guide
How to Install PostgreSQL 12 in Linux Mint 19.x Tara/Tessa/Tina/Tricia 64-bit GNU/Linux – Step by step Tutorial.
And PostgreSQL 12 for Mint 19.x is a Powerful, Open Source Object-Relational Database System with a proven Architecture knows for its strong Reliability, Data Integrity, and Correctness.
Moreover, PostgreSQL 12 is a Major Release that contains a number of Extensive Changes that May affect Compatibility with Previous Releases.
Especially relevant: A dump/restore using pg_dumpall, or use of pg_upgrade, is Required for those wishing to Migrate Data from any previous release.

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1. Launching Terminal
Open a Shell Terminal emulator window
(Press “Enter” to Execute Commands)In case first see: Terminal QuickStart Guide.
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