test: add test for View

Author: KKould

README.md

@@ -185,9 +185,11 @@ let fnck_sql = DataBaseBuilder::path("./data")
   - Create
     - [x] Table
     - [x] Index: Unique\Normal\Composite
+    - [x] View
   - Drop
     - [x] Table
     - [ ] Index
+    - [ ] View
   - Alert
     - [x] Add Column
     - [x] Drop Column

src/binder/select.rs

@@ -426,7 +426,7 @@ impl<'a: 'b, 'b, T: Transaction> Binder<'a, 'b, T> {
                 SelectItem::UnnamedExpr(expr) => select_items.push(self.bind_expr(expr)?),
                 SelectItem::ExprWithAlias { expr, alias } => {
                     let expr = self.bind_expr(expr)?;
-                    let alias_name = alias.to_string();
+                    let alias_name = alias.value.to_lowercase();
 
                     self.context
                         .add_alias(None, alias_name.clone(), expr.clone());

tests/slt/crdb/delete.slt

@@ -24,31 +24,31 @@ SELECT * FROM kv
 5 6
 7 8
 
-# TODO: View
+# TODO: Drop View
 # statement ok
 # drop view if exists kview
 
-# statement ok
-# CREATE VIEW kview AS SELECT k,v FROM kv
+statement ok
+CREATE VIEW kview AS SELECT k,v FROM kv
 
-# query II
-# SELECT * FROM kview
-# ----
-# 1 2
-# 3 4
-# 5 6
-# 7 8
+query II
+SELECT * FROM kview
+----
+1 2
+3 4
+5 6
+7 8
 
-# statement error 1002
-# DELETE FROM kview
+statement error
+DELETE FROM kview
 
-# query II
-# SELECT * FROM kview
-# ----
-# 1 2
-# 3 4
-# 5 6
-# 7 8
+query II
+SELECT * FROM kview
+----
+1 2
+3 4
+5 6
+7 8
 
 statement ok
 DELETE FROM kv WHERE k=3 OR v=6
@@ -167,7 +167,7 @@ statement ok
 drop table if exists family
 
 statement ok
-CREATE TABLE family (    x INT PRIMARY KEY,    y INT)
+CREATE TABLE family ( x INT PRIMARY KEY, y INT)
 
 statement ok
 INSERT INTO family VALUES (1, 1), (2, 2), (3, 3)

tests/slt/sql_2016/F031_02.slt

@@ -1,8 +1,7 @@
 # F031-02: CREATE VIEW statement
 
-# TODO: Support `VIEW`
-
 statement ok
 CREATE TABLE TABLE_F031_02_01_01 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F031_02_01_01 AS SELECT A FROM TABLE_F031_02_01_01
+statement ok
+CREATE VIEW VIEW_F031_02_01_01 AS SELECT A FROM TABLE_F031_02_01_01

tests/slt/sql_2016/F031_16.slt

@@ -1,10 +1,11 @@
 # F031-16: DROP VIEW statement: RESTRICT clause
 
-# TODO: Support `VIEW` & `CREATE VIEW` & `DROP VIEW`
+# TODO: Support `DROP VIEW`
 
 statement ok
 CREATE TABLE TABLE_F031_16_01_01 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F031_16_01_01 AS SELECT A FROM TABLE_F031_16_01_01;
+statement ok
+CREATE VIEW VIEW_F031_16_01_01 AS SELECT A FROM TABLE_F031_16_01_01;
 
 # DROP VIEW VIEW_F031_16_01_01

tests/slt/sql_2016/F081.slt

@@ -1,13 +1,13 @@
 # F081: UNION and EXCEPT in views
 
-# TODO: VIEW & (UNION & EXCEPT with VIEW)
-
 statement ok
 CREATE TABLE TABLE_F081_01_011 ( ID INT PRIMARY KEY, A INTEGER );
 
 statement ok
 CREATE TABLE TABLE_F081_01_012 ( ID INT PRIMARY KEY, A INTEGER );
 
+# TODO: Except
+# statement ok
 # CREATE VIEW VIEW_F081_01_01 AS SELECT A FROM TABLE_F081_01_011 EXCEPT SELECT A FROM TABLE_F081_01_012
 
 statement ok
@@ -16,12 +16,14 @@ CREATE TABLE TABLE_F081_01_021 ( ID INT PRIMARY KEY, A INTEGER );
 statement ok
 CREATE TABLE TABLE_F081_01_022 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F081_01_02 AS SELECT A FROM TABLE_F081_01_021 UNION ALL SELECT A FROM TABLE_F081_01_022
+statement ok
+CREATE VIEW VIEW_F081_01_02 AS SELECT A FROM TABLE_F081_01_021 UNION ALL SELECT A FROM TABLE_F081_01_022
 
 statement ok
 CREATE TABLE TABLE_F081_01_031 ( ID INT PRIMARY KEY, A INTEGER );
 
 statement ok
 CREATE TABLE TABLE_F081_01_032 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F081_01_03 AS SELECT A FROM TABLE_F081_01_031 UNION SELECT A FROM TABLE_F081_01_032
+statement ok
+CREATE VIEW VIEW_F081_01_03 AS SELECT A FROM TABLE_F081_01_031 UNION SELECT A FROM TABLE_F081_01_032

tests/slt/sql_2016/F131_01.slt

@@ -1,45 +1,55 @@
 # F131-01: WHERE, GROUP BY, and HAVING clauses supported in queries with grouped views
 
-# TODO: WHERE, GROUP BY, and HAVING clauses supported in queries with grouped views
-
 statement ok
 CREATE TABLE TABLE_F131_01_01_01 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_01_01_01 AS SELECT A FROM TABLE_F131_01_01_01 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_01_01_01 AS SELECT A FROM TABLE_F131_01_01_01 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_01_01_01
+query I
+SELECT A FROM VIEW_F131_01_01_01
 
 statement ok
 CREATE TABLE TABLE_F131_01_01_02 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_01_01_02 AS SELECT A FROM TABLE_F131_01_01_02 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_01_01_02 AS SELECT A FROM TABLE_F131_01_01_02 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_01_01_02 GROUP BY A
+query I
+SELECT A FROM VIEW_F131_01_01_02 GROUP BY A
 
 statement ok
 CREATE TABLE TABLE_F131_01_01_03 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_01_01_03 AS SELECT A FROM TABLE_F131_01_01_03 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_01_01_03 AS SELECT A FROM TABLE_F131_01_01_03 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_01_01_03 GROUP BY A HAVING A = 2
+query I
+SELECT A FROM VIEW_F131_01_01_03 GROUP BY A HAVING A = 2
 
 statement ok
 CREATE TABLE TABLE_F131_01_01_04 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_01_01_04 AS SELECT A FROM TABLE_F131_01_01_04 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_01_01_04 AS SELECT A FROM TABLE_F131_01_01_04 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_01_01_04 WHERE A = 1
+query I
+SELECT A FROM VIEW_F131_01_01_04 WHERE A = 1
 
 statement ok
 CREATE TABLE TABLE_F131_01_01_05 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_01_01_05 AS SELECT A FROM TABLE_F131_01_01_05 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_01_01_05 AS SELECT A FROM TABLE_F131_01_01_05 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_01_01_05 WHERE A = 1 GROUP BY A
+query I
+SELECT A FROM VIEW_F131_01_01_05 WHERE A = 1 GROUP BY A
 
 statement ok
 CREATE TABLE TABLE_F131_01_01_06 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_01_01_06 AS SELECT A FROM TABLE_F131_01_01_06 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_01_01_06 AS SELECT A FROM TABLE_F131_01_01_06 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_01_01_06 WHERE A = 1 GROUP BY A HAVING A = 2
+query I
+SELECT A FROM VIEW_F131_01_01_06 WHERE A = 1 GROUP BY A HAVING A = 2

tests/slt/sql_2016/F131_02.slt

@@ -1,13 +1,13 @@
 # F131-02: Multiple tables supported in queries with grouped views
 
-# TODO Multiple tables supported in queries with grouped views
-
 statement ok
 CREATE TABLE TABLE_F131_02_01_011 ( ID INT PRIMARY KEY, A INTEGER );
 
 statement ok
 CREATE TABLE TABLE_F131_02_01_012 ( ID INT PRIMARY KEY, A INTEGER );
 
-# CREATE VIEW VIEW_F131_02_01_01 AS SELECT A FROM TABLE_F131_02_01_011 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_02_01_01 AS SELECT A FROM TABLE_F131_02_01_011 GROUP BY A;
 
-# SELECT A FROM VIEW_F131_02_01_01 JOIN TABLE_F131_02_01_012 USING ( A )
+query I
+SELECT A FROM VIEW_F131_02_01_01 JOIN TABLE_F131_02_01_012 USING ( A )

tests/slt/sql_2016/F131_03.slt

@@ -1,17 +1,22 @@
 # F131-03: Set functions supported in queries with grouped views
 
-# TODO: Set functions supported in queries with grouped views
-
 statement ok
 CREATE TABLE TABLE_F131_03_01_011 ( ID INT PRIMARY KEY, A INTEGER, B INTEGER );
 
-# CREATE VIEW VIEW_F131_03_01_01 AS SELECT A, MIN ( B ) AS C FROM TABLE_F131_03_01_011 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_03_01_01 AS SELECT A, MIN ( B ) AS C FROM TABLE_F131_03_01_011 GROUP BY A;
 
-# SELECT SUM ( C ) FROM VIEW_F131_03_01_01
+query I
+SELECT SUM ( C ) FROM VIEW_F131_03_01_01
+----
+null
 
 statement ok
 CREATE TABLE TABLE_F131_03_01_021 ( ID INT PRIMARY KEY, A INTEGER, B INTEGER );
 
-# CREATE VIEW VIEW_F131_03_01_02 AS SELECT A, MIN ( B ) AS C FROM TABLE_F131_03_01_021 GROUP BY A;
+statement ok
+CREATE VIEW VIEW_F131_03_01_02 AS SELECT A, MIN ( B ) AS C FROM TABLE_F131_03_01_021 GROUP BY A;
 
-# SELECT SUM ( C ) FROM VIEW_F131_03_01_02 GROUP BY A
+query I
+SELECT A, SUM ( C ) FROM VIEW_F131_03_01_02 GROUP BY A
+----