fix: Do not use Unicode functions on lower and upper functions because of type incompatibility with string

hibernate-dialect-v6/CHANGELOG.md

@@ -1,3 +1,8 @@
+TODO: Set actual version
+## 0.9.x ##
+
+- Fixed `lower` and `upper` functions: replaced `Unicode::ToLower`/`Unicode::ToUpper` with YQL built-in functions compatible with `Text`/`String` column types
+
 ## 1.5.3 ##
 
 - Support `lower`, `upper` and `concat` functions

hibernate-dialect-v6/pom.xml

@@ -6,6 +6,7 @@
 
     <groupId>tech.ydb.dialects</groupId>
     <artifactId>hibernate-ydb-dialect</artifactId>
+    <!--  TODO: Set actual version -->
     <version>1.5.3</version>
 
     <packaging>jar</packaging>

hibernate-dialect-v6/src/main/java/tech/ydb/hibernate/dialect/YdbDialect.java

@@ -258,12 +258,12 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
 
         functionRegistry.registerPattern(
                 "lower",
-                "Unicode::ToLower(?1)"
+                "String::AsciiToLower(?1)"
         );
 
         functionRegistry.registerPattern(
                 "upper",
-                "Unicode::ToUpper(?1)"
+                "String::AsciiToUpper(?1)"
         );
 
         functionRegistry.patternDescriptorBuilder("concat", "(?1||?2...)")

hibernate-dialect-v6/src/test/java/tech/ydb/hibernate/string/StringEntity.java

@@ -0,0 +1,17 @@
+package tech.ydb.hibernate.string;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "string_test")
+public class StringEntity {
+    @Id
+    @Column(name = "id")
+    public int id;
+
+    @Column(name = "name")
+    public String name;
+}

hibernate-dialect-v6/src/test/java/tech/ydb/hibernate/string/StringFunctionsTest.java

@@ -6,6 +6,8 @@
 import org.junit.jupiter.api.extension.RegisterExtension;
 import tech.ydb.test.junit5.YdbHelperExtension;
 
+import java.util.List;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static tech.ydb.hibernate.TestUtils.*;
 
@@ -20,6 +22,7 @@ public class StringFunctionsTest {
     @BeforeAll
     static void beforeAll() {
         SESSION_FACTORY = basedConfiguration()
+                .addAnnotatedClass(StringEntity.class)
                 .setProperty(AvailableSettings.URL, jdbcUrl(ydb))
                 .buildSessionFactory();
     }
@@ -48,4 +51,25 @@ void concatFunctionTest() {
                 .createQuery("select concat('text')")
                 .getSingleResult()));
     }
+
+    @Test
+    void lowerOnColumnWithLikeTest() {
+        inTransaction(session -> {
+            StringEntity entity = new StringEntity();
+            entity.id = 1;
+            entity.name = "test entity";
+            session.persist(entity);
+        });
+
+        inTransaction(session -> {
+            List<StringEntity> result = session
+                    .createQuery(
+                            "select e from StringEntity e where lower(e.name) like lower(concat('%', :search, '%'))",
+                            StringEntity.class
+                    )
+                    .setParameter("search", "test")
+                    .getResultList();
+            assertEquals(1, result.size());
+        });
+    }
 }

hibernate-dialect-v7/CHANGELOG.md

@@ -1,3 +1,8 @@
+TODO: Set actual version
+## 0.9.x ##
+
+- Fixed `lower` and `upper` functions: replaced `Unicode::ToLower`/`Unicode::ToUpper` with YQL built-in functions compatible with `Text`/`String` column types
+
 ## 0.9.2 ##
 
 - Support `concat` function

hibernate-dialect-v7/pom.xml

@@ -6,6 +6,7 @@
 
     <groupId>tech.ydb.dialects</groupId>
     <artifactId>hibernate-ydb-dialect-v7</artifactId>
+    <!--  TODO: Set actual version -->
     <version>0.9.2</version>
 
     <packaging>jar</packaging>

hibernate-dialect-v7/src/main/java/tech/ydb/hibernate/dialect/YdbDialect.java

@@ -259,12 +259,12 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
 
         functionRegistry.registerPattern(
                 "lower",
-                "Unicode::ToLower(?1)"
+                "String::AsciiToLower(?1)"
         );
 
         functionRegistry.registerPattern(
                 "upper",
-                "Unicode::ToUpper(?1)"
+                "String::AsciiToUpper(?1)"
         );
 
         functionRegistry.patternDescriptorBuilder("concat", "(?1||?2...)")

hibernate-dialect-v7/src/test/java/tech/ydb/hibernate/string/StringEntity.java

@@ -0,0 +1,17 @@
+package tech.ydb.hibernate.string;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "string_test")
+public class StringEntity {
+    @Id
+    @Column(name = "id")
+    public int id;
+
+    @Column(name = "name")
+    public String name;
+}

hibernate-dialect-v7/src/test/java/tech/ydb/hibernate/string/StringFunctionsTest.java

@@ -6,6 +6,8 @@
 import org.junit.jupiter.api.extension.RegisterExtension;
 import tech.ydb.test.junit5.YdbHelperExtension;
 
+import java.util.List;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static tech.ydb.hibernate.TestUtils.*;
 
@@ -20,6 +22,7 @@ public class StringFunctionsTest {
     @BeforeAll
     static void beforeAll() {
         SESSION_FACTORY = basedConfiguration()
+                .addAnnotatedClass(StringEntity.class)
                 .setProperty(AvailableSettings.URL, jdbcUrl(ydb))
                 .buildSessionFactory();
     }
@@ -48,4 +51,25 @@ void concatFunctionTest() {
                 .createQuery("select concat('text')")
                 .getSingleResult()));
     }
-}
+
+    @Test
+    void lowerOnColumnWithLikeTest() {
+        inTransaction(session -> {
+            StringEntity entity = new StringEntity();
+            entity.id = 1;
+            entity.name = "test entity";
+            session.persist(entity);
+        });
+
+        inTransaction(session -> {
+            List<StringEntity> result = session
+                    .createQuery(
+                            "select e from StringEntity e where lower(e.name) like lower(concat('%', :search, '%'))",
+                            StringEntity.class
+                    )
+                    .setParameter("search", "test")
+                    .getResultList();
+            assertEquals(1, result.size());
+        });
+    }
+}