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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Which version of PostGIS are you coming from again?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In theory, as long as your old is running a newish PostGIS 3+, it should be safe enough to just NOT run<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>SELECT postgis_extensions_upgrade();<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If you don’t run that, then your database is just running with a newer lib file, but old scripts. So then just installing the binaries of older should work fine.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>One caveat, I believe we did make sure changes that caused some functions not to work, but I can’t remember what those were.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>All I know is if you run<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>SELECT postgis_full_version();<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>And you get an error after upgrading your binaries, then not running postgis_extensions_ugprade is not an option.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Nikhil Shetty <nikhil.dba04@gmail.com> <br><b>Sent:</b> Monday, February 26, 2024 3:30 AM<br><b>To:</b> PostGIS Users Discussion <postgis-users@lists.osgeo.org><br><b>Subject:</b> Options to rollback PostGIS upgrade<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi Team,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>We are looking at options available to rollback a PostGIS upgrade in case there are issues after the upgrade.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Apart from removing new packages and installing old ones and then restoring the database from backup , do we have any other option?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal>Nikhil<o:p></o:p></p></div></div></div></div></body></html>