add

iOS-SwiftUI-Code/GRDB.swift-6.29.3/GRDB/QueryInterface/Schema/IndexDefinition.swift

@@ -1,26 +0,0 @@
-struct IndexDefinition {
-    let name: String
-    let table: String
-    let expressions: [SQLExpression]
-    let options: IndexOptions
-    let condition: SQLExpression?
-}
-
-/// Index creation options
-public struct IndexOptions: OptionSet, Sendable {
-    public let rawValue: Int
-    
-    public init(rawValue: Int) { self.rawValue = rawValue }
-    
-    /// Only creates the index if it does not already exist.
-    public static let ifNotExists = IndexOptions(rawValue: 1 << 0)
-    
-    /// Creates a unique index.
-    public static let unique = IndexOptions(rawValue: 1 << 1)
-}
-
-extension Database {
-    static func defaultIndexName(on table: String, columns: [String]) -> String {
-        "index_\(table)_on_\(columns.joined(separator: "_"))"
-    }
-}