tests: improved sql dumps, renamed pgsql -> postgre

tests/dibi/data/mysql.sql

@@ -7,7 +7,7 @@ USE dibi_test;
 DROP TABLE IF EXISTS `products`;
 CREATE TABLE `products` (
   `product_id` int(11) NOT NULL AUTO_INCREMENT,
-  `title` varchar(100) DEFAULT NULL,
+  `title` varchar(100) NOT NULL,
   PRIMARY KEY (`product_id`),
   KEY `title` (`title`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
@@ -20,7 +20,7 @@ INSERT INTO `products` (`product_id`, `title`) VALUES
 DROP TABLE IF EXISTS `customers`;
 CREATE TABLE `customers` (
   `customer_id` int(11) NOT NULL AUTO_INCREMENT,
-  `name` varchar(100) DEFAULT NULL,
+  `name` varchar(100) NOT NULL,
   PRIMARY KEY (`customer_id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 

tests/dibi/data/postgre.sql

@@ -4,7 +4,7 @@ CREATE SCHEMA public;
 
 CREATE TABLE products (
 	product_id serial NOT NULL,
-	title varchar(100) DEFAULT NULL,
+	title varchar(100) NOT NULL,
 	PRIMARY KEY (product_id)
 );
 
@@ -18,7 +18,7 @@ CREATE INDEX title ON products USING btree (title);
 
 CREATE TABLE customers (
 	customer_id serial NOT NULL,
-	name varchar(100) DEFAULT NULL,
+	name varchar(100) NOT NULL,
 	PRIMARY KEY (customer_id)
 );
 

tests/dibi/data/sqlite.sql

@@ -1,6 +1,6 @@
 CREATE TABLE [products] (
 	[product_id] INTEGER NOT NULL PRIMARY KEY,
-	[title] VARCHAR(100) NULL
+	[title] VARCHAR(100) NOT NULL
 );
 
 CREATE INDEX "title" ON "products" ("title");
@@ -11,7 +11,7 @@ INSERT INTO "products" ("product_id", "title") VALUES (3,	'Computer');
 
 CREATE TABLE [customers] (
 	[customer_id] INTEGER PRIMARY KEY NOT NULL,
-	[name] VARCHAR(100) NULL
+	[name] VARCHAR(100) NOT NULL
 );
 
 INSERT INTO "customers" ("customer_id", "name") VALUES (1,	'Dave Lister');
@@ -25,7 +25,9 @@ CREATE TABLE [orders] (
 	[order_id] INTEGER NOT NULL PRIMARY KEY,
 	[customer_id] INTEGER NOT NULL,
 	[product_id] INTEGER NOT NULL,
-	[amount] FLOAT NOT NULL
+	[amount] FLOAT NOT NULL,
+	CONSTRAINT orders_product FOREIGN KEY (product_id) REFERENCES products (product_id),
+	CONSTRAINT orders_customer FOREIGN KEY (customer_id) REFERENCES customers (customer_id)
 );
 
 INSERT INTO "orders" ("order_id", "customer_id", "product_id", "amount") VALUES (1,	2,	1,	'7.0');