Merge pull request '테이블 타입관리 에러 해결' (#11) from tableMngError into dev

Reviewed-on: http://39.117.244.52:3000/kjs/ERP-node/pulls/11

backend-node/src/services/tableManagementService.ts

@@ -22,7 +22,7 @@ export class TableManagementService {
       logger.info("테이블 목록 조회 시작");
 
       // information_schema는 여전히 $queryRaw 사용
-      const tables = await prisma.$queryRaw<TableInfo[]>`
+      const rawTables = await prisma.$queryRaw<any[]>`
         SELECT 
           t.table_name as "tableName",
           COALESCE(tl.table_label, t.table_name) as "displayName",
@@ -38,6 +38,12 @@ export class TableManagementService {
         ORDER BY t.table_name
       `;
 
+      // BigInt를 Number로 변환하여 JSON 직렬화 문제 해결
+      const tables: TableInfo[] = rawTables.map((table) => ({
+        ...table,
+        columnCount: Number(table.columnCount), // BigInt → Number 변환
+      }));
+
       logger.info(`테이블 목록 조회 완료: ${tables.length}개`);
       return tables;
     } catch (error) {
@@ -57,7 +63,7 @@ export class TableManagementService {
       logger.info(`컬럼 정보 조회 시작: ${tableName}`);
 
       // information_schema는 여전히 $queryRaw 사용
-      const columns = await prisma.$queryRaw<ColumnTypeInfo[]>`
+      const rawColumns = await prisma.$queryRaw<any[]>`
         SELECT 
           c.column_name as "columnName",
           COALESCE(cl.column_label, c.column_name) as "displayName",
@@ -82,6 +88,17 @@ export class TableManagementService {
         ORDER BY c.ordinal_position
       `;
 
+      // BigInt를 Number로 변환하여 JSON 직렬화 문제 해결
+      const columns: ColumnTypeInfo[] = rawColumns.map((column) => ({
+        ...column,
+        maxLength: column.maxLength ? Number(column.maxLength) : null,
+        numericPrecision: column.numericPrecision
+          ? Number(column.numericPrecision)
+          : null,
+        numericScale: column.numericScale ? Number(column.numericScale) : null,
+        displayOrder: column.displayOrder ? Number(column.displayOrder) : null,
+      }));
+
       logger.info(`컬럼 정보 조회 완료: ${tableName}, ${columns.length}개`);
       return columns;
     } catch (error) {