MaxCompute Connector Release Notes

Alation Cloud Service Applies to Alation Cloud Service instances of Alation

Customer Managed Applies to customer-managed instances of Alation

Enhanced Connector Enhanced connectors add extended capabilities and require a separate entitlement in addition to your Alation platform license.

May 21, 2026

MaxCompute Enhanced Connector: Version 1.1.1

Enhancements

Support for Tenant-Level Information Schema

The connector now supports an optional Use Tenant-Level Information Schema setting in the General Settings tab. Enable it to support sampling on partitioned tables through the tenant-level SYSTEM_CATALOG.INFORMATION_SCHEMA.PARTITIONS view. Use this option for tenants that grant the infoschema_admin role at the tenant level but do not grant project-level Information Schema access. The setting is disabled by default. (AL-243400)

Note

The Tenant-Level Query Host Project setting is now available on the General Settings tab.

View SQL in the Catalog

For MaxCompute views, the connector now sends the view’s SELECT definition as the table DDL. The view body appears in the catalog SQL panel. (AL-244102)

Lineage Compatibility for Legacy DataStudio Tenants

The connector now falls back to the DataWorks ListNodes 2020-05-18 API when the 2024-05-18 API returns no nodes for a project, restoring lineage scheduling enrichment for tenants that have not migrated to the modern DataStudio. (AL-243396)

Driver Upgrade

The MaxCompute JDBC driver is now upgraded to version 3.10.6.

Fixed Issues

Body Resolution View Fails with Error

View body resolution fails with error ODPS-0130071 on flat-mode projects. This issue is now resolved. (AL-244102)

May 15, 2026

MaxCompute Enhanced Connector: Version 1.1.0

Enhancements

Support for STS Assume Role Authentication Type

The connector now supports Alibaba Cloud STS AssumeRole authentication as an optional authentication type along with the existing long-lived Access Key mode. The connector uses the RAM user Access Key only to call the Alibaba Cloud STS AssumeRole API. The connector then uses the short-lived temporary credentials returned by STS for subsequent connector-managed calls to MaxCompute and DataWorks. The default authentication mode is Access Key. (AL-241471)

April 30, 2026

MaxCompute Enhanced Connector: Version 1.0.10

Enhancements

Support for Extraction of Partitioned Tables

The connector now supports extraction of partitioned table. The connector queries INFORMATION_SCHEMA.PARTITIONS to find the most recently created partition per table. This requires the RAM user to have odps:Select on INFORMATION_SCHEMA.PARTITIONS in each MaxCompute project that contains partitioned tables.

Support to Specify the QLI Target Project

The connector now includes the QLI Target Project field, which lets you specify the project to use for the JDBC connection, rather than the connector automatically trying each one. This is helpful when the RAM user doesn’t have the createInstance permission on all projects. If left blank, the auto-detect behavior works as before.

April 16, 2026

MaxCompute Enhanced Connector: Version 1.0.8

New Features

  • JDBC Driver Upgrade: Upgraded the bundled MaxCompute JDBC driver from version 3.2.0 to 3.10.5 to support the MaxQA feature and improve compatibility and performance with the latest MaxCompute service. (AL-236911)

  • Dynamic Sampling (Beta): The connector now supports dynamic sampling (per-user profiling). When enabled, profiling and sampling queries run using the individual user’s credentials from their Compose Connection Settings instead of the service account. This enables per-user access control for profiling. See Configure Sampling and Profiling for details. (AL-236913)

  • Custom Profiling (Beta): Users can now run custom SQL queries for data profiling. When a custom query is provided on a table’s profiling page, the connector executes it and returns schema information and row samples. This enables profiling of computed columns, filtered subsets, or complex expressions. See Configure Sampling and Profiling for details. (AL-236913)

April 9, 2026

MaxCompute Enhanced Connector: Version 1.0.7

The MaxCompute Enhanced Connector is now available for download. Use this connector to catalog Alibaba Cloud MaxCompute data warehouses in Alation.

The connector is compatible with Alation version 2024.3 and higher.

Features

  • Authentication: Supports Alibaba Cloud Access Key authentication.

  • Metadata Extraction: Extracts projects, tables, views, columns, and user-defined functions from MaxCompute using MaxCompute OpenAPI.

  • Lineage Extraction: Extracts table-level and column-level lineage from DataWorks Public API. Includes script details such as Task, Status, Trigger, Owner, Schedule, and SQL content.

  • Query Log Ingestion (QLI): Extracts query history from MaxCompute to power Popularity, Top Users, Filter Information, and Join Information features. Requires the infoschema_admin role at the MaxCompute tenant level.

  • Data Profiling: Supports table and column profiling via JDBC connections. Includes Value Distribution for all column types, and Min, Max, Mean metrics for numerical columns. Requires the enable_profiling_v2 feature flag (enabled by default for ACS).

  • Compose Integration: Supports query execution through Alation Compose.

  • Performance Settings: Configurable parallel processing and API rate limiting for optimized extraction.

  • Table Filtering: Filter tables by name or regex pattern for selective extraction.

  • Logging Configuration: Configurable log levels for troubleshooting.

For more information, see MaxCompute Connector Overview.