diff --git a/migrations/000002_rbac_data_permission.up.sql b/migrations/000002_rbac_data_permission.up.sql
index 21aa22f..41b086c 100644
--- a/migrations/000002_rbac_data_permission.up.sql
+++ b/migrations/000002_rbac_data_permission.up.sql
@@ -21,12 +21,12 @@ CREATE TABLE IF NOT EXISTS tb_account (
 );
 
 -- T015: tb_account 索引
-CREATE UNIQUE INDEX idx_account_username ON tb_account(username) WHERE deleted_at IS NULL;
-CREATE UNIQUE INDEX idx_account_phone ON tb_account(phone) WHERE deleted_at IS NULL;
-CREATE INDEX idx_account_user_type ON tb_account(user_type);
-CREATE INDEX idx_account_shop_id ON tb_account(shop_id);
-CREATE INDEX idx_account_parent_id ON tb_account(parent_id);
-CREATE INDEX idx_account_deleted_at ON tb_account(deleted_at);
+CREATE UNIQUE INDEX IF NOT EXISTS idx_account_username ON tb_account(username) WHERE deleted_at IS NULL;
+CREATE UNIQUE INDEX IF NOT EXISTS idx_account_phone ON tb_account(phone) WHERE deleted_at IS NULL;
+CREATE INDEX IF NOT EXISTS idx_account_user_type ON tb_account(user_type);
+CREATE INDEX IF NOT EXISTS idx_account_shop_id ON tb_account(shop_id);
+CREATE INDEX IF NOT EXISTS idx_account_parent_id ON tb_account(parent_id);
+CREATE INDEX IF NOT EXISTS idx_account_deleted_at ON tb_account(deleted_at);
 
 -- tb_account 表和字段注释
 COMMENT ON TABLE tb_account IS '账号表：存储系统用户账号信息，支持层级关系和软删除';
@@ -61,8 +61,8 @@ CREATE TABLE IF NOT EXISTS tb_role (
 );
 
 -- T017: tb_role 索引
-CREATE INDEX idx_role_role_type ON tb_role(role_type);
-CREATE INDEX idx_role_deleted_at ON tb_role(deleted_at);
+CREATE INDEX IF NOT EXISTS idx_role_role_type ON tb_role(role_type);
+CREATE INDEX IF NOT EXISTS idx_role_deleted_at ON tb_role(deleted_at);
 
 -- tb_role 表和字段注释
 COMMENT ON TABLE tb_role IS '角色表：定义系统角色，支持软删除';
@@ -97,10 +97,10 @@ CREATE TABLE IF NOT EXISTS tb_permission (
 );
 
 -- T019: tb_permission 索引
-CREATE UNIQUE INDEX idx_permission_code ON tb_permission(perm_code) WHERE deleted_at IS NULL;
-CREATE INDEX idx_permission_type ON tb_permission(perm_type);
-CREATE INDEX idx_permission_parent_id ON tb_permission(parent_id);
-CREATE INDEX idx_permission_deleted_at ON tb_permission(deleted_at);
+CREATE UNIQUE INDEX IF NOT EXISTS idx_permission_code ON tb_permission(perm_code) WHERE deleted_at IS NULL;
+CREATE INDEX IF NOT EXISTS idx_permission_type ON tb_permission(perm_type);
+CREATE INDEX IF NOT EXISTS idx_permission_parent_id ON tb_permission(parent_id);
+CREATE INDEX IF NOT EXISTS idx_permission_deleted_at ON tb_permission(deleted_at);
 
 -- tb_permission 表和字段注释
 COMMENT ON TABLE tb_permission IS '权限表：定义系统权限（菜单和按钮），支持层级结构和软删除';
@@ -134,10 +134,10 @@ CREATE TABLE IF NOT EXISTS tb_account_role (
 );
 
 -- T021: tb_account_role 索引
-CREATE INDEX idx_account_role_account_id ON tb_account_role(account_id);
-CREATE INDEX idx_account_role_role_id ON tb_account_role(role_id);
-CREATE INDEX idx_account_role_deleted_at ON tb_account_role(deleted_at);
-CREATE UNIQUE INDEX idx_account_role_unique ON tb_account_role(account_id, role_id) WHERE deleted_at IS NULL;
+CREATE INDEX IF NOT EXISTS idx_account_role_account_id ON tb_account_role(account_id);
+CREATE INDEX IF NOT EXISTS idx_account_role_role_id ON tb_account_role(role_id);
+CREATE INDEX IF NOT EXISTS idx_account_role_deleted_at ON tb_account_role(deleted_at);
+CREATE UNIQUE INDEX IF NOT EXISTS idx_account_role_unique ON tb_account_role(account_id, role_id) WHERE deleted_at IS NULL;
 
 -- tb_account_role 表和字段注释
 COMMENT ON TABLE tb_account_role IS '账号-角色关联表：实现账号和角色的多对多关系，支持软删除';
@@ -167,10 +167,10 @@ CREATE TABLE IF NOT EXISTS tb_role_permission (
 );
 
 -- T023: tb_role_permission 索引
-CREATE INDEX idx_role_permission_role_id ON tb_role_permission(role_id);
-CREATE INDEX idx_role_permission_perm_id ON tb_role_permission(perm_id);
-CREATE INDEX idx_role_permission_deleted_at ON tb_role_permission(deleted_at);
-CREATE UNIQUE INDEX idx_role_permission_unique ON tb_role_permission(role_id, perm_id) WHERE deleted_at IS NULL;
+CREATE INDEX IF NOT EXISTS idx_role_permission_role_id ON tb_role_permission(role_id);
+CREATE INDEX IF NOT EXISTS idx_role_permission_perm_id ON tb_role_permission(perm_id);
+CREATE INDEX IF NOT EXISTS idx_role_permission_deleted_at ON tb_role_permission(deleted_at);
+CREATE UNIQUE INDEX IF NOT EXISTS idx_role_permission_unique ON tb_role_permission(role_id, perm_id) WHERE deleted_at IS NULL;
 
 -- tb_role_permission 表和字段注释
 COMMENT ON TABLE tb_role_permission IS '角色-权限关联表：实现角色和权限的多对多关系，支持软删除';