revert: revert system_setting to instance_setting rename changes

Reverts only the system_setting → instance_setting rename related changes from commit d326c71.
Keeps the resource → attachment rename changes intact.

- Reverts table name back to system_setting in all database drivers (MySQL, PostgreSQL, SQLite)
- Removes migration files for the system_setting rename
- Reverts LATEST.sql files to use system_setting table

store/db/mysql/instance_setting.go

@@ -8,7 +8,7 @@ import (
 )
 
 func (d *DB) UpsertInstanceSetting(ctx context.Context, upsert *store.InstanceSetting) (*store.InstanceSetting, error) {
-	stmt := "INSERT INTO `instance_setting` (`name`, `value`, `description`) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE `value` = ?, `description` = ?"
+	stmt := "INSERT INTO `system_setting` (`name`, `value`, `description`) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE `value` = ?, `description` = ?"
 	_, err := d.db.ExecContext(
 		ctx,
 		stmt,
@@ -31,7 +31,7 @@ func (d *DB) ListInstanceSettings(ctx context.Context, find *store.FindInstanceS
 		where, args = append(where, "`name` = ?"), append(args, find.Name)
 	}
 
-	query := "SELECT `name`, `value`, `description` FROM `instance_setting` WHERE " + strings.Join(where, " AND ")
+	query := "SELECT `name`, `value`, `description` FROM `system_setting` WHERE " + strings.Join(where, " AND ")
 	rows, err := d.db.QueryContext(ctx, query, args...)
 	if err != nil {
 		return nil, err
@@ -59,7 +59,7 @@ func (d *DB) ListInstanceSettings(ctx context.Context, find *store.FindInstanceS
 }
 
 func (d *DB) DeleteInstanceSetting(ctx context.Context, delete *store.DeleteInstanceSetting) error {
-	stmt := "DELETE FROM `instance_setting` WHERE `name` = ?"
+	stmt := "DELETE FROM `system_setting` WHERE `name` = ?"
 	_, err := d.db.ExecContext(ctx, stmt, delete.Name)
 	return err
 }

store/db/postgres/instance_setting.go

@@ -9,7 +9,7 @@ import (
 
 func (d *DB) UpsertInstanceSetting(ctx context.Context, upsert *store.InstanceSetting) (*store.InstanceSetting, error) {
 	stmt := `
-		INSERT INTO instance_setting (
+		INSERT INTO system_setting (
 			name, value, description
 		)
 		VALUES ($1, $2, $3)
@@ -36,7 +36,7 @@ func (d *DB) ListInstanceSettings(ctx context.Context, find *store.FindInstanceS
 			name,
 			value,
 			description
-		FROM instance_setting
+		FROM system_setting
 		WHERE ` + strings.Join(where, " AND ")
 
 	rows, err := d.db.QueryContext(ctx, query, args...)
@@ -66,7 +66,7 @@ func (d *DB) ListInstanceSettings(ctx context.Context, find *store.FindInstanceS
 }
 
 func (d *DB) DeleteInstanceSetting(ctx context.Context, delete *store.DeleteInstanceSetting) error {
-	stmt := `DELETE FROM instance_setting WHERE name = $1`
+	stmt := `DELETE FROM system_setting WHERE name = $1`
 	_, err := d.db.ExecContext(ctx, stmt, delete.Name)
 	return err
 }

store/db/sqlite/instance_setting.go

@@ -9,7 +9,7 @@ import (
 
 func (d *DB) UpsertInstanceSetting(ctx context.Context, upsert *store.InstanceSetting) (*store.InstanceSetting, error) {
 	stmt := `
-		INSERT INTO instance_setting (
+		INSERT INTO system_setting (
 			name, value, description
 		)
 		VALUES (?, ?, ?)
@@ -36,7 +36,7 @@ func (d *DB) ListInstanceSettings(ctx context.Context, find *store.FindInstanceS
 			name,
 			value,
 			description
-		FROM instance_setting
+		FROM system_setting
 		WHERE ` + strings.Join(where, " AND ")
 
 	rows, err := d.db.QueryContext(ctx, query, args...)
@@ -66,7 +66,7 @@ func (d *DB) ListInstanceSettings(ctx context.Context, find *store.FindInstanceS
 }
 
 func (d *DB) DeleteInstanceSetting(ctx context.Context, delete *store.DeleteInstanceSetting) error {
-	stmt := "DELETE FROM instance_setting WHERE name = ?"
+	stmt := "DELETE FROM system_setting WHERE name = ?"
 	_, err := d.db.ExecContext(ctx, stmt, delete.Name)
 	return err
 }

store/migration/mysql/0.26/01__rename_system_setting_to_instance_setting.sql

@@ -1 +0,0 @@
-RENAME TABLE system_setting TO instance_setting;

store/migration/mysql/LATEST.sql

@@ -1,5 +1,5 @@
--- instance_setting
-CREATE TABLE `instance_setting` (
+-- system_setting
+CREATE TABLE `system_setting` (
   `name` VARCHAR(256) NOT NULL PRIMARY KEY,
   `value` LONGTEXT NOT NULL,
   `description` TEXT NOT NULL
@@ -58,8 +58,8 @@ CREATE TABLE `memo_relation` (
   UNIQUE(`memo_id`,`related_memo_id`,`type`)
 );
 
--- attachment
-CREATE TABLE `attachment` (
+-- resource
+CREATE TABLE `resource` (
   `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
   `uid` VARCHAR(256) NOT NULL UNIQUE,
   `creator_id` INT NOT NULL,

store/migration/postgres/0.26/01__rename_system_setting_to_instance_setting.sql

@@ -1 +0,0 @@
-ALTER TABLE system_setting RENAME TO instance_setting;

store/migration/postgres/LATEST.sql

@@ -1,5 +1,5 @@
--- instance_setting
-CREATE TABLE instance_setting (
+-- system_setting
+CREATE TABLE system_setting (
   name TEXT NOT NULL PRIMARY KEY,
   value TEXT NOT NULL,
   description TEXT NOT NULL
@@ -58,8 +58,8 @@ CREATE TABLE memo_relation (
   UNIQUE(memo_id, related_memo_id, type)
 );
 
--- attachment
-CREATE TABLE attachment (
+-- resource
+CREATE TABLE resource (
   id SERIAL PRIMARY KEY,
   uid TEXT NOT NULL UNIQUE,
   creator_id INTEGER NOT NULL,

store/migration/sqlite/0.26/01__rename_system_setting_to_instance_setting.sql

@@ -1 +0,0 @@
-ALTER TABLE `system_setting` RENAME TO `instance_setting`;

store/migration/sqlite/LATEST.sql

@@ -1,5 +1,5 @@
--- instance_setting
-CREATE TABLE instance_setting (
+-- system_setting
+CREATE TABLE system_setting (
   name TEXT NOT NULL,
   value TEXT NOT NULL,
   description TEXT NOT NULL DEFAULT '',
@@ -63,8 +63,8 @@ CREATE TABLE memo_relation (
   UNIQUE(memo_id, related_memo_id, type)
 );
 
--- attachment
-CREATE TABLE attachment (
+-- resource
+CREATE TABLE resource (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
   uid TEXT NOT NULL UNIQUE,
   creator_id INTEGER NOT NULL,
@@ -80,9 +80,9 @@ CREATE TABLE attachment (
   payload TEXT NOT NULL DEFAULT '{}'
 );
 
-CREATE INDEX idx_attachment_creator_id ON attachment (creator_id);
+CREATE INDEX idx_resource_creator_id ON resource (creator_id);
 
-CREATE INDEX idx_attachment_memo_id ON attachment (memo_id);
+CREATE INDEX idx_resource_memo_id ON resource (memo_id);
 
 -- activity
 CREATE TABLE activity (

store/test/migrator_test.go

@@ -13,5 +13,5 @@ func TestGetCurrentSchemaVersion(t *testing.T) {
 
 	currentSchemaVersion, err := ts.GetCurrentSchemaVersion()
 	require.NoError(t, err)
-	require.Equal(t, "0.26.2", currentSchemaVersion)
+	require.Equal(t, "0.26.1", currentSchemaVersion)
 }