feat: Support YashanDB compatibility via Oracle processing logic (#6643)

Author: henglianghu

core/src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -1151,7 +1151,14 @@ protected void initCheck() throws SQLException {
         if (dbType == DbType.oracle) {
             isOracle = true;
 
-            if (driver.getMajorVersion() < 10) {
+            // Some Oracle-compatible databases may use non-Oracle JDBC drivers (e.g. YashanDB),
+            // whose version numbers are not aligned with Oracle's. In that case, skip the Oracle
+            // JDBC major version check but still treat the datasource as Oracle style.
+            final String driverClassName = this.driverClass;
+            final boolean oracleCompatibleNonOracleDriver =
+                    driverClassName != null && driverClassName.startsWith("com.yashandb.jdbc.");
+
+            if (!oracleCompatibleNonOracleDriver && driver.getMajorVersion() < 10) {
                 throw new SQLException("not support oracle driver " + driver.getMajorVersion() + "."
                         + driver.getMinorVersion());
             }

core/src/main/java/com/alibaba/druid/util/JdbcUtils.java

@@ -490,6 +490,8 @@ public static String getDriverClassName(String rawUrl) throws SQLException {
             return "ca.edbc.jdbc.EdbcDriver";
         } else if (rawUrl.startsWith("jdbc:mimer:multi1:")) {
             return "com.mimer.jdbc.Driver";
+        } else if (rawUrl.startsWith("jdbc:yasdb:")) {
+            return "com.yashandb.jdbc.Driver";
         } else if (rawUrl.startsWith("jdbc:dm:")) {
             return JdbcConstants.DM_DRIVER;
         } else if (rawUrl.startsWith("jdbc:kingbase:")) {
@@ -575,6 +577,8 @@ public static DbType getDbTypeRaw(String rawUrl, String driverClassName) {
             return DbType.tidb;
         } else if (rawUrl.startsWith("jdbc:oracle:") || rawUrl.startsWith("jdbc:log4jdbc:oracle:")) {
             return DbType.oracle;
+        } else if (rawUrl.startsWith("jdbc:yasdb:")) {
+            return DbType.oracle;
         } else if (rawUrl.startsWith("jdbc:alibaba:oracle:")) {
             return DbType.ali_oracle;
         } else if (rawUrl.startsWith("jdbc:oceanbase:oracle:")) {

core/src/test/java/com/alibaba/druid/bvt/utils/JdbcUtils_driver.java

@@ -36,6 +36,14 @@ public void test_oceanbase() {
         assertEquals(JdbcConstants.OCEANBASE_ORACLE, DbType.of(JdbcUtils.getDbType("jdbc:oceanbase:oracle://127.1:3306/test?a=b", null)));
     }
 
+    @Test
+    public void test_yashandb() throws Exception {
+        String url = "jdbc:yasdb://127.0.0.1:1688/REGRESS?productName=Oracle";
+        assertEquals("com.yashandb.jdbc.Driver", JdbcUtils.getDriverClassName(url));
+        assertEquals(DbType.oracle, JdbcUtils.getDbTypeRaw(url, null));
+        assertEquals(DbType.oracle, DbType.of(JdbcUtils.getDbType(url, null)));
+    }
+
     @Test
     public void test_log4jdbc_mysql() {
         String jdbcUrl = "jdbc:log4jdbc:mysql://localhost:8066/test";