Merge branch 'main' into PR #2113 to update

Author: lqiu96

pom.xml

@@ -216,7 +216,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-trace</artifactId>
-      <version>2.76.0</version>
+      <version>2.78.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>

samples/spring-data-jdbc/googlesql/pom.xml

@@ -23,7 +23,7 @@
       <dependency>
         <groupId>org.springframework.data</groupId>
         <artifactId>spring-data-bom</artifactId>
-        <version>2025.0.4</version>
+        <version>2025.0.5</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>

samples/spring-data-jdbc/postgresql/pom.xml

@@ -23,7 +23,7 @@
       <dependency>
         <groupId>org.springframework.data</groupId>
         <artifactId>spring-data-bom</artifactId>
-        <version>2025.0.4</version>
+        <version>2025.0.5</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>

samples/spring-data-mybatis/googlesql/pom.xml

@@ -28,7 +28,7 @@
       <dependency>
         <groupId>org.springframework.data</groupId>
         <artifactId>spring-data-bom</artifactId>
-        <version>2025.0.4</version>
+        <version>2025.0.5</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>
@@ -49,7 +49,7 @@
       <dependency>
         <groupId>org.testcontainers</groupId>
         <artifactId>testcontainers-bom</artifactId>
-        <version>1.21.3</version>
+        <version>2.0.1</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>

samples/spring-data-mybatis/postgresql/pom.xml

@@ -28,7 +28,7 @@
       <dependency>
         <groupId>org.springframework.data</groupId>
         <artifactId>spring-data-bom</artifactId>
-        <version>2025.0.4</version>
+        <version>2025.0.5</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>
@@ -42,7 +42,7 @@
       <dependency>
         <groupId>org.testcontainers</groupId>
         <artifactId>testcontainers-bom</artifactId>
-        <version>1.21.3</version>
+        <version>2.0.1</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>

src/main/java/com/google/cloud/spanner/jdbc/JdbcDatabaseMetaData.java

@@ -187,7 +187,7 @@ public boolean storesUpperCaseIdentifiers() {
 
   @Override
   public boolean storesLowerCaseIdentifiers() {
-    return false;
+    return connection.getDialect() == Dialect.POSTGRESQL;
   }
 
   @Override

src/test/java/com/google/cloud/spanner/jdbc/JdbcDatabaseMetaDataTest.java

@@ -61,6 +61,7 @@ public static Object[] data() {
   @Test
   public void testTrivialMethods() throws SQLException {
     JdbcConnection connection = mock(JdbcConnection.class);
+    when(connection.getDialect()).thenReturn(dialect);
     DatabaseMetaData meta = new JdbcDatabaseMetaData(connection);
     assertTrue(meta.allProceduresAreCallable());
     assertTrue(meta.allTablesAreSelectable());
@@ -132,7 +133,11 @@ public void testTrivialMethods() throws SQLException {
     assertTrue(meta.nullPlusNonNullIsNull());
     assertFalse(meta.isCatalogAtStart());
     assertEquals(connection.isReadOnly(), meta.isReadOnly());
-    assertFalse(meta.storesLowerCaseIdentifiers());
+    if (dialect == Dialect.POSTGRESQL) {
+      assertTrue(meta.storesLowerCaseIdentifiers());
+    } else {
+      assertFalse(meta.storesLowerCaseIdentifiers());
+    }
     assertFalse(meta.storesLowerCaseQuotedIdentifiers());
     assertTrue(meta.storesMixedCaseIdentifiers());
     assertTrue(meta.storesMixedCaseQuotedIdentifiers());