sqldb/v2: limit MigrationExecutor interface

diff --git a/sqldb/v2/migrations.go b/sqldb/v2/migrations.go
index 538abe2..56e0f3c 100644
--- a/sqldb/v2/migrations.go
+++ b/sqldb/v2/migrations.go
@@ -96,29 +96,11 @@ type MigrationTarget func(mig *migrate.Migrate,
 
 // MigrationExecutor is an interface that abstracts the migration functionality.
 type MigrationExecutor interface {
-	// ExecuteMigrations runs database migrations up to the specified target
-	// version or all migrations if no target is specified. A migration may
-	// include a schema change, a custom migration function, or both.
-	// Developers must ensure that migrations are defined in the correct
-	// order. Migration details are stored in the global variable
-	// migrationConfig.
-	ExecuteMigrations(target MigrationTarget, set MigrationSet) error
-
-	// GetSchemaVersion returns the current schema version of the database.
-	GetSchemaVersion() (int, bool, error)
-
-	// SetSchemaVersion sets the schema version of the database.
-	//
-	// NOTE: This alters the internal database schema tracker. USE WITH
-	// CAUTION!!!
-	SetSchemaVersion(version int, dirty bool) error
-
-	// DefaultTarget returns the default migration target.
-	DefaultTarget() MigrationTarget
-
-	// SkipMigrations indicates if the SQL and corresponding code migrations
-	// will be skipped.
-	SkipMigrations() bool
+	// ExecuteMigrations runs database migrations for the given migration
+	// set using the executor's default production migration target. A
+	// migration may include a schema change, a custom migration function,
+	// or both.
+	ExecuteMigrations(set MigrationSet) error
 }
 
 var (
@@ -403,13 +385,8 @@ func (t *replacerFile) Close() error {
 // ApplyAllMigrations applies both the SQLC and custom in-code migrations to the
 // SQLite database.
 func ApplyAllMigrations(executor MigrationExecutor, sets []MigrationSet) error {
-	// Execute migrations unless configured to skip them.
-	if executor.SkipMigrations() {
-		return nil
-	}
-
 	for _, set := range sets {
-		err := executor.ExecuteMigrations(executor.DefaultTarget(), set)
+		err := executor.ExecuteMigrations(set)
 		if err != nil {
 			return fmt.Errorf("error applying migrations: %w", err)
 		}
diff --git a/sqldb/v2/postgres.go b/sqldb/v2/postgres.go
index 3b0255a..35fa513 100644
--- a/sqldb/v2/postgres.go
+++ b/sqldb/v2/postgres.go
@@ -167,9 +167,19 @@ func errPostgresMigration(err error) error {
 	return fmt.Errorf("error creating postgres migration: %w", err)
 }
 
-// ExecuteMigrations runs migrations for the Postgres database, depending on the
-// target given, either all migrations or up to a given version.
-func (s *PostgresStore) ExecuteMigrations(target MigrationTarget,
+// ExecuteMigrations runs migrations for the Postgres database using the
+// default production migration target.
+func (s *PostgresStore) ExecuteMigrations(set MigrationSet) error {
+	if s.cfg.SkipMigrations {
+		return nil
+	}
+
+	return s.executeMigrations(TargetLatest, set)
+}
+
+// executeMigrations runs migrations for the Postgres database, depending on
+// the target given, either all migrations or up to a given version.
+func (s *PostgresStore) executeMigrations(target MigrationTarget,
 	set MigrationSet) error {
 
 	dbName, err := getDatabaseNameFromDSN(s.cfg.Dsn)
@@ -231,11 +241,3 @@ func (s *PostgresStore) SetSchemaVersion(version int, dirty bool) error {
 
 	return driver.SetVersion(version, dirty)
 }
-
-func (s *PostgresStore) DefaultTarget() MigrationTarget {
-	return TargetLatest
-}
-
-func (s *PostgresStore) SkipMigrations() bool {
-	return s.cfg.SkipMigrations
-}
diff --git a/sqldb/v2/postgres_fixture.go b/sqldb/v2/postgres_fixture.go
index 8d653af..cf11154 100644
--- a/sqldb/v2/postgres_fixture.go
+++ b/sqldb/v2/postgres_fixture.go
@@ -197,7 +197,7 @@ func NewTestPostgresDBWithVersion(t testing.TB, fixture *TestPgFixture,
 	store, err := NewPostgresStore(storeCfg)
 	require.NoError(t, err)
 
-	err = store.ExecuteMigrations(TargetVersion(version), sets)
+	err = store.executeMigrations(TargetVersion(version), sets)
 	require.NoError(t, err)
 
 	t.Cleanup(func() {
diff --git a/sqldb/v2/sqlite.go b/sqldb/v2/sqlite.go
index 7cd12c1..b988a72 100644
--- a/sqldb/v2/sqlite.go
+++ b/sqldb/v2/sqlite.go
@@ -251,9 +251,19 @@ func (s *SqliteStore) backupAndMigrate(mig *migrate.Migrate,
 	return mig.Up()
 }
 
-// ExecuteMigrations runs migrations for the sqlite database, depending on the
+// ExecuteMigrations runs migrations for the sqlite database using the default
+// production migration target.
+func (s *SqliteStore) ExecuteMigrations(set MigrationSet) error {
+	if s.Config.SkipMigrations {
+		return nil
+	}
+
+	return s.executeMigrations(s.backupAndMigrate, set)
+}
+
+// executeMigrations runs migrations for the sqlite database, depending on the
 // target given, either all migrations or up to a given version.
-func (s *SqliteStore) ExecuteMigrations(target MigrationTarget,
+func (s *SqliteStore) executeMigrations(target MigrationTarget,
 	set MigrationSet) error {
 
 	driver, err := sqlite_migrate.WithInstance(
@@ -285,14 +295,6 @@ func (s *SqliteStore) ExecuteMigrations(target MigrationTarget,
 	)
 }
 
-func (s *SqliteStore) DefaultTarget() MigrationTarget {
-	return s.backupAndMigrate
-}
-
-func (s *SqliteStore) SkipMigrations() bool {
-	return s.Config.SkipMigrations
-}
-
 // GetSchemaVersion returns the current schema version of the SQLite database.
 func (s *SqliteStore) GetSchemaVersion() (int, bool, error) {
 	driver, err := sqlite_migrate.WithInstance(
diff --git a/sqldb/v2/sqlite_test_utils.go b/sqldb/v2/sqlite_test_utils.go
index 849fbae..03ef833 100644
--- a/sqldb/v2/sqlite_test_utils.go
+++ b/sqldb/v2/sqlite_test_utils.go
@@ -75,7 +75,7 @@ func NewTestSqliteDBWithVersion(t *testing.T, set MigrationSet,
 	}, dbFileName)
 	require.NoError(t, err)
 
-	err = sqlDB.ExecuteMigrations(TargetVersion(version), set)
+	err = sqlDB.executeMigrations(TargetVersion(version), set)
 	require.NoError(t, err)
 
 	t.Cleanup(func() {