Moved most VARBINARY columns to VARCHAR in examples

examples/local/create_commerce_schema.sql

@@ -1,18 +1,18 @@
 create table if not exists product(
-  sku varbinary(128),
-  description varbinary(128),
+  sku VARCHAR(128),
+  description VARCHAR(128),
   price bigint,
   primary key(sku)
 ) ENGINE=InnoDB;
 create table if not exists customer(
   customer_id bigint not null auto_increment,
-  email varbinary(128),
+  email VARCHAR(128),
   primary key(customer_id)
 ) ENGINE=InnoDB;
 create table if not exists corder(
   order_id bigint not null auto_increment,
   customer_id bigint,
-  sku varbinary(128),
+  sku VARCHAR(128),
   price bigint,
   primary key(order_id)
 ) ENGINE=InnoDB;

examples/operator/create_commerce_schema.sql

@@ -1,18 +1,18 @@
 create table if not exists product(
-  sku varbinary(128),
-  description varbinary(128),
+  sku VARCHAR(128),
+  description VARCHAR(128),
   price bigint,
   primary key(sku)
 ) ENGINE=InnoDB;
 create table if not exists customer(
   customer_id bigint not null auto_increment,
-  email varbinary(128),
+  email VARCHAR(128),
   primary key(customer_id)
 ) ENGINE=InnoDB;
 create table if not exists corder(
   order_id bigint not null auto_increment,
   customer_id bigint,
-  sku varbinary(128),
+  sku VARCHAR(128),
   price bigint,
   primary key(order_id)
 ) ENGINE=InnoDB;

examples/region_sharding/create_main_schema.sql

@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS customer (
   id int NOT NULL,
-  fullname varbinary(256),
-  nationalid varbinary(256),
-  country varbinary(256),
+  fullname VARCHAR(256),
+  nationalid VARCHAR(256),
+  country VARCHAR(256),
   primary key(id)
   );

examples/region_sharding/main_vschema_sharded.json

@@ -14,7 +14,7 @@
       "column_vindexes": [
         {
           "columns": ["id", "country"],
-	      "name": "region_vdx"
+	        "name": "region_vdx"
         }
       ]
     }