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PGVersion

Python functions for Postgres version strings

Did you know?

Postgres v15.1 was released before v12.14!

Postgres v9.6.1 is valid, but v10.6.1 is an invalid version.

Postgres v9.6.24 was released, but v10.24 never was (although it is a valid version number).

This project was created to help Python developers better work around the nuances of the Postgres Engine versioning system.

Features

  • Validation of Postgres Version Strings
  • Conversion of Postgres version string to version number (for e.g. v10.14 -> 100014)
  • Get Release Date information for a given Postgres Version
  • Compare release dates of 2 version numbers
  • Attempt auto-correction of minor versions
  • Extract Major (or Minor) version from Version String
  • 100+ tests for various functions

Functions

  • isValidPGVersion(s)
  • isReleasedPGVersion(s)
  • getMajorPGVersion(s)
  • getMinorPGVersion(s)
  • parsePGVersion(s)
  • appendMinorVersionIfRequired(s)
  • getPGVerNumFromString(s)
  • getVerReleaseDate(ver)
  • IsVerReleasedAfter(v1, v2)

Sample Output

PS C:\proj\pgversion> python .\main.py

Accepts argument as int. For e.g. isValidPGVersion(11.1) - True
Accepts argument as string. For e.g. isValidPGVersion('11.1') - True

Accepts old Postgres version number system - For e.g. isValidPGVersion('9.6.1') - True

Check if Postgres version is valid. For e.g. isValidPGVersion('10.14') - True
... and even when technically valid, confirm if a version was ever released. For e.g. was v9.7.1 ever released?  False

Extract Major version from a Postgres version. For e.g. getMajorPGVersion('14.2') - 14

Extract Minor version from a Postgres version. For e.g. getMinorPGVersion('14.2') - 2

Attempt to modify input to create a valid postgres version. For e.g. appendMinorVersionIfRequired(10) - 10.0

Convert Postgres version string to Postgres Version Number. For e.g. getPGVerNumFromString('9.6.1') - 90601

Get Release Date for Postgres Version. For e.g. getVerReleaseDate('10.1') - 2017-11-09

Compare release dates of two Postgres versions. For e.g. IsVerReleasedAfter('12.14', '15.1') True
... in other words, v12.14 was released *after* v15.1

Sample Test Run

C:\proj\pgversion>coverage run test_pgversion.py
...................
----------------------------------------------------------------------
Ran 19 tests in 0.005s

OK