fix bug

sop-business/src/main/java/com/qmth/sop/business/exec/MySQLExec.java

@@ -110,7 +110,7 @@ public class MySQLExec {
                                 "`" + t.getFieldId() + "`" + " int DEFAULT NULL COMMENT '" + t.getFieldTitle() + "'");
                     } else {
                         stringJoiner.add(
-                                "`" + t.getFieldId() + "`" + " varchar(100) DEFAULT NULL COMMENT '" + t.getFieldTitle()
+                                "`" + t.getFieldId() + "`" + " varchar(500) DEFAULT NULL COMMENT '" + t.getFieldTitle()
                                         + "'");
                     }
                 }