From abf681aaa98030f1805df84af9ed03b306843509 Mon Sep 17 00:00:00 2001
From: safiir <809320935@qq.com>
Date: Sun, 26 Mar 2023 18:10:51 +0800
Subject: [PATCH] ADD: PRAGMA cipher_compatibility

---
 sqlite3.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/sqlite3.go b/sqlite3.go
index 363a44a..90ee021 100644
--- a/sqlite3.go
+++ b/sqlite3.go
@@ -1016,6 +1016,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 
 	// PRAGMA's
 	encryptKey := ""
+	cipher_compatibility := -1
 	autoVacuum := -1
 	busyTimeout := 5000
 	caseSensitiveLike := -1
@@ -1042,6 +1043,15 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 			encryptKey = val
 		}
 
+		// _cipher_compatibility
+		if val := params.Get("_cipher_compatibility"); val != "" {
+			iv, err := strconv.ParseInt(val, 10, 64)
+			if err != nil {
+				return nil, fmt.Errorf("Invalid _cipher_compatibility: %v: %v", val, err)
+			}
+			cipher_compatibility = int(iv)
+		}
+
 		// Authentication
 		if _, ok := params["_auth"]; ok {
 			authCreate = true
@@ -1406,6 +1416,15 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 		}
 	}
 
+	// Cipher Compatibility
+	// The cipher_compatibility pragma should be called immediately after if provided
+	if cipher_compatibility > -1 {
+		if err := exec(fmt.Sprintf("PRAGMA cipher_compatibility = %d;", cipher_compatibility)); err != nil {
+			C.sqlite3_close_v2(db)
+			return nil, err
+		}
+	}
+
 	// USER AUTHENTICATION
 	//
 	// User Authentication is always performed even when