修复资金出款表排序规则冲突

backend/internal/modules/adminfinance/disbursement_mysql_test.go

@@ -0,0 +1,35 @@
+package adminfinance
+
+import (
+	"os"
+	"testing"
+	"time"
+
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+)
+
+func TestDisbursementQueryOnMySQL(t *testing.T) {
+	dsn := os.Getenv("HFB_ADMIN_FINANCE_TEST_DSN")
+	if dsn == "" {
+		t.Skip("设置 HFB_ADMIN_FINANCE_TEST_DSN 后运行 MySQL 资金出款查询测试")
+	}
+	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("连接 MySQL 失败: %v", err)
+	}
+
+	result, err := NewRepository(db).Disbursements(t.Context(), DisbursementQuery{
+		DateType:  "created",
+		StartDate: time.Now().AddDate(-1, 0, 0),
+		EndDate:   time.Now().AddDate(0, 0, 1),
+		Page:      1,
+		PageSize:  20,
+	})
+	if err != nil {
+		t.Fatalf("MySQL 资金出款查询失败: %v", err)
+	}
+	if result == nil || result.Items == nil {
+		t.Fatalf("MySQL 资金出款查询返回异常: %+v", result)
+	}
+}

backend/migrations/000062_fix_admin_pickup_collation.sql

@@ -0,0 +1,18 @@
+-- +goose Up
+
+-- 000021/000049 创建表时未显式指定排序规则，在 MySQL 8 中会继承
+-- utf8mb4_0900_ai_ci。财务出款查询会与 utf8mb4_unicode_ci 的订单、
+-- 提现和手工出款表做 UNION，混用排序规则会触发 Error 1271。
+ALTER TABLE admin_pickups
+  CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+ALTER TABLE admin_pickup_financial_adjustments
+  CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- +goose Down
+
+ALTER TABLE admin_pickup_financial_adjustments
+  CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;
+
+ALTER TABLE admin_pickups
+  CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;