Quote all identifier for MySQL/MariaDB. Closes #54

SQL/mysql/2016060200.sql

@@ -1,5 +1,5 @@
 ALTER TABLE
-	ident_switch
+	`ident_switch`
 MODIFY
-	username
+	`username`
 		varchar(64);

SQL/mysql/2018071600.sql

@@ -1,6 +1,6 @@
 ALTER TABLE
-	ident_switch
+	`ident_switch`
 MODIFY
-	username
-	varchar(64)
-	NULL;
+	`username`
+		varchar(64)
+		NULL;

SQL/mysql/2018121800.sql

@@ -1,29 +1,29 @@
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 CHANGE
-  host
-  imap_host varchar(64);
+  `host`
+  `imap_host` varchar(64);
 
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 CHANGE
-  port
-  imap_port int;
+  `port`
+  `imap_port` int;
 
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 ADD COLUMN
-	smtp_host
+	`smtp_host`
     varchar(64);
 
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 ADD COLUMN
-  smtp_port
+  `smtp_port`
 		int
-		CHECK(smtp_port > 0 AND smtp_port <= 65535);
+		CHECK(`smtp_port` > 0 AND `smtp_port` <= 65535);
 
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 DROP COLUMN
-  delimiter;
+  `delimiter`;

SQL/mysql/2019112000.sql

@@ -1,5 +1,5 @@
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 ADD COLUMN
-	imap_delimiter
+	`imap_delimiter`
     char(1);

SQL/mysql/2019121300.sql

@@ -1,14 +1,14 @@
 ALTER TABLE
-  ident_switch
+  `ident_switch`
 ADD COLUMN
-	drafts_mbox
-    varchar(64),
+	`drafts_mbox`
+        varchar(64),
 ADD COLUMN
-	sent_mbox
-    varchar(64),
+	`sent_mbox`
+        varchar(64),
 ADD COLUMN
-	junk_mbox
-    varchar(64),
+	`junk_mbox`
+        varchar(64),
 ADD COLUMN
-	trash_mbox
-    varchar(64);
+	`trash_mbox`
+        varchar(64);