Fix: [ bug #1810 ] [pgsql] Error while upgrading from 3.6 to 3.7

htdocs/core/db/pgsql.class.php

@@ -7,6 +7,7 @@
  * Copyright (C) 2005-2012	Regis Houssin			<regis.houssin@capnetworks.com>
  * Copyright (C) 2012		Yann Droneaud			<yann@droneaud.fr>
  * Copyright (C) 2012		Florian Henry			<florian.henry@open-concept.pro>
+ * Copyright (C) 2015       Marcos García           <marcosgdf@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -255,7 +256,7 @@ class DoliDBPgsql extends DoliDB
                     $newreg3=preg_replace('/ NOT NULL/i','',$newreg3);
                     $newreg3=preg_replace('/ NULL/i','',$newreg3);
                     $newreg3=preg_replace('/ DEFAULT 0/i','',$newreg3);
-                    $newreg3=preg_replace('/ DEFAULT \'[0-9a-zA-Z_@]*\'/i','',$newreg3);
+                    $newreg3=preg_replace('/ DEFAULT \'?[0-9a-zA-Z_@]*\'?/i','',$newreg3);
                     $line.= "ALTER TABLE ".$reg[1]." ALTER COLUMN ".$reg[2]." TYPE ".$newreg3;
                     // TODO Add alter to set default value or null/not null if there is this in $reg[3]
                 }