fix create/drop index functions

Author: jberkel

Sources/SQLite/Typed/Schema.swift

@@ -127,11 +127,7 @@ extension Table {
 
     // MARK: - CREATE INDEX
 
-    public func createIndex(_ columns: Expressible...) -> String {
-        return createIndex(columns)
-    }
-
-    public func createIndex(_ columns: [Expressible], unique: Bool = false, ifNotExists: Bool = false) -> String {
+    public func createIndex(_ columns: Expressible..., unique: Bool = false, ifNotExists: Bool = false) -> String {
         let clauses: [Expressible?] = [
             create("INDEX", indexName(columns), unique ? .unique : nil, ifNotExists),
             Expression<Void>(literal: "ON"),
@@ -144,11 +140,8 @@ extension Table {
 
     // MARK: - DROP INDEX
 
-    public func dropIndex(_ columns: Expressible...) -> String {
-        return dropIndex(columns)
-    }
 
-    public func dropIndex(_ columns: [Expressible], ifExists: Bool = false) -> String {
+    public func dropIndex(_ columns: Expressible..., ifExists: Bool = false) -> String {
         return drop("INDEX", indexName(columns), ifExists)
     }
 

Tests/SQLiteTests/SchemaTests.swift

@@ -727,25 +727,25 @@ class SchemaTests : XCTestCase {
 
         XCTAssertEqual(
             "CREATE UNIQUE INDEX \"index_table_on_int64\" ON \"table\" (\"int64\")",
-            table.createIndex([int64], unique: true)
+            table.createIndex(int64, unique: true)
         )
         XCTAssertEqual(
             "CREATE INDEX IF NOT EXISTS \"index_table_on_int64\" ON \"table\" (\"int64\")",
-            table.createIndex([int64], ifNotExists: true)
+            table.createIndex(int64, ifNotExists: true)
         )
         XCTAssertEqual(
             "CREATE UNIQUE INDEX IF NOT EXISTS \"index_table_on_int64\" ON \"table\" (\"int64\")",
-            table.createIndex([int64], unique: true, ifNotExists: true)
+            table.createIndex(int64, unique: true, ifNotExists: true)
         )
         XCTAssertEqual(
             "CREATE UNIQUE INDEX IF NOT EXISTS \"main\".\"index_table_on_int64\" ON \"table\" (\"int64\")",
-            qualifiedTable.createIndex([int64], unique: true, ifNotExists: true)
+            qualifiedTable.createIndex(int64, unique: true, ifNotExists: true)
         )
     }
 
     func test_dropIndex_compilesCreateIndexExpression() {
         XCTAssertEqual("DROP INDEX \"index_table_on_int64\"", table.dropIndex(int64))
-        XCTAssertEqual("DROP INDEX IF EXISTS \"index_table_on_int64\"", table.dropIndex([int64], ifExists: true))
+        XCTAssertEqual("DROP INDEX IF EXISTS \"index_table_on_int64\"", table.dropIndex(int64, ifExists: true))
     }
 
     func test_create_onView_compilesCreateViewExpression() {