Merge pull request #8997 from sbulen/30_pg_numeric_col

[3.0] Misc fixes affecting pg install

Author: Sesquipedalian

Sources/Db/APIs/PostgreSQL.php

@@ -690,7 +690,7 @@ public function transaction(string $type = 'commit', ?object $connection = null)
 	/**
 	 *
 	 */
-	public function error(object $connection): string
+	public function error(?object $connection = null): string
 	{
 		if ($connection === null && $this->connection === null) {
 			return '';
@@ -1820,7 +1820,11 @@ public function create_table(string $table_name, array $columns, array $indexes
 				}
 				$default = 'default nextval(\'' . $short_table_name . '_seq\')';
 			} elseif (isset($column['default']) && $column['default'] !== null) {
-				$default = 'default \'' . $this->escape_string($column['default']) . '\'';
+				// Numbers don't need quotes.
+				if (is_numeric($column['default']))
+					$default = 'default ' . $column['default'];
+				else
+					$default = 'default \'' . $this->escape_string($column['default']) . '\'';
 			} else {
 				$default = '';
 			}