From f05f9db15ebc38510d9306deede69a7026527d84 Mon Sep 17 00:00:00 2001
From: DarkPhoenix2704 <anbarasun123@gmail.com>
Date: Wed, 28 Jan 2026 13:04:45 +0000
Subject: [PATCH] fix: truncate long text in query level

---
 packages/nocodb/src/constants/index.ts        |  3 +-
 .../src/db/BaseModelSqlv2/select-object.ts    | 33 +++++++++++++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/packages/nocodb/src/constants/index.ts b/packages/nocodb/src/constants/index.ts
index 507a429916..1d343b077e 100644
--- a/packages/nocodb/src/constants/index.ts
+++ b/packages/nocodb/src/constants/index.ts
@@ -16,7 +16,8 @@ if (!NC_REFRESH_TOKEN_EXP_IN_DAYS || NC_REFRESH_TOKEN_EXP_IN_DAYS <= 0) {
   throw new Error('NC_REFRESH_TOKEN_EXP_IN_DAYS must be a positive number');
 }
 
-export const NC_MAX_TEXT_LENGTH = 100000;
+export const NC_MAX_TEXT_LENGTH =
+  +process.env['NC_MAX_TEXT_LENGTH'] || 100000;
 
 export const NC_EMAIL_ASSETS_BASE_URL = 'https://cdn.nocodb.com/emails/v2';
 
diff --git a/packages/nocodb/src/db/BaseModelSqlv2/select-object.ts b/packages/nocodb/src/db/BaseModelSqlv2/select-object.ts
index 4fad05bce6..c07a92eda2 100644
--- a/packages/nocodb/src/db/BaseModelSqlv2/select-object.ts
+++ b/packages/nocodb/src/db/BaseModelSqlv2/select-object.ts
@@ -19,6 +19,7 @@ import {
   shouldSkipField,
 } from '~/helpers/dbHelpers';
 import { sanitize } from '~/helpers/sqlSanitize';
+import { NC_MAX_TEXT_LENGTH } from '~/constants';
 
 export const selectObject = (baseModel: IBaseModelSqlV2, logger: Logger) => {
   return async ({
@@ -433,6 +434,38 @@ export const selectObject = (baseModel: IBaseModelSqlV2, logger: Logger) => {
             ]);
           break;
         }
+        case UITypes.LongText: {
+          const colPath = sanitize(
+            `${alias || baseModel.tnPath}.${column.column_name}`,
+          );
+          if (baseModel.isPg) {
+            res[sanitize(getAs(column) || column.column_name)] =
+              baseModel.dbDriver.raw(`SUBSTR(??::TEXT, 1, ?)`, [
+                colPath,
+                NC_MAX_TEXT_LENGTH,
+              ]);
+          } else if (baseModel.isMySQL) {
+            res[sanitize(getAs(column) || column.column_name)] =
+              baseModel.dbDriver.raw(`SUBSTR(??, 1, ?)`, [
+                colPath,
+                NC_MAX_TEXT_LENGTH,
+              ]);
+          } else if (baseModel.isSqlite) {
+            res[sanitize(getAs(column) || column.column_name)] =
+              baseModel.dbDriver.raw(`SUBSTR(??, 1, ?)`, [
+                colPath,
+                NC_MAX_TEXT_LENGTH,
+              ]);
+          } else {
+            // SQL Server / other databases - use LEFT function
+            res[sanitize(getAs(column) || column.column_name)] =
+              baseModel.dbDriver.raw(`LEFT(??, ?)`, [
+                colPath,
+                NC_MAX_TEXT_LENGTH,
+              ]);
+          }
+          break;
+        }
         default:
           if (baseModel.isPg) {
             if (column.dt === 'bytea') {