Merge pull request #1326 from hawk0620/feat/create_index_support_array_param

Create index support array as parameters to solve #1322

Author: nathanfallet

Sources/SQLite/Typed/Schema.swift

@@ -135,8 +135,8 @@ extension Table {
     }
 
     // MARK: - CREATE INDEX
-
-    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"),
@@ -146,12 +146,20 @@ extension Table {
 
         return " ".join(clauses.compactMap { $0 }).asSQL()
     }
+    
+    public func createIndex(_ columns: Expressible..., unique: Bool = false, ifNotExists: Bool = false) -> String {
+        return createIndex(Array(columns), unique: unique, ifNotExists: ifNotExists)
+    }
 
     // MARK: - DROP INDEX
-
-    public func dropIndex(_ columns: Expressible..., ifExists: Bool = false) -> String {
+    
+    public func dropIndex(_ columns: [Expressible], ifExists: Bool = false) -> String {
         drop("INDEX", indexName(columns), ifExists)
     }
+    
+    public func dropIndex(_ columns: Expressible..., ifExists: Bool = false) -> String {
+        dropIndex(Array(columns), ifExists: ifExists)
+    }
 
     fileprivate func indexName(_ columns: [Expressible]) -> Expressible {
         let string = (["index", clauses.from.name, "on"] + columns.map { $0.expression.template }).joined(separator: " ").lowercased()