clickzetta-overview

name

clickzetta-overview

description

ClickZetta Lakehouse product overview: core concepts, object model, architecture, and Studio module introduction. Covers: Account/Instance/Workspace/Schema hierarchy, VCluster types and CRU billing, Dynamic Table, Table Stream CDC, Pipe, Synonym, permission system (RBAC/ACL), storage-compute separation, brand relationships (ClickZetta = Yunqi = Singdata), and Studio six modules. Trigger when user asks: "what is a workspace", "what is a VCluster", "what is CRU", "Lakehouse architecture", "object hierarchy", "permission system", "compare concepts with Snowflake", "what is Studio", "storage-compute separation", "ClickZetta introduction". Keywords: concepts, architecture, workspace, schema, VCluster, Studio, overview, object model

ClickZetta Lakehouse Product Overview

Reference Documents

Document	Content
references/object-model.md	Object hierarchy, concept comparisons, unique design details
references/brands-and-endpoints.md	Brand relationships, service endpoints per environment
references/studio-modules.md	Studio six modules detailed features

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Object Hierarchy Overview

Account
└── Instance                      ← Resource isolation unit
    └── Workspace                 ← ≈ Snowflake Database / Databricks Catalog
        ├── Schema                ← Namespace, permission boundary
        │   ├── Managed Table / External Table / View / Dynamic Table / Materialized View
        │   ├── Volume / Table Stream / Pipe / Index / Synonym
        │   └── Function / External Function
        ├── Share / Connection / External Catalog
        └── VCluster (compute cluster)

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Core Concepts Quick Reference

Concept	Description
CRU	Cross-cloud unified compute unit, billed by CRU×hour; no charge when cluster is stopped
VCluster	Three types: General Purpose (GP), Analytics (AP), Integration (INTEGRATION)
Dynamic Table	Declarative incremental computation, CBO-adaptive incremental/full refresh, minimum 1-minute interval
Table Stream	CDC change capture object, requires enabling change_tracking first
Pipe	Continuous ingestion object (Kafka/OSS), each Pipe maps to a dedicated Volume
Synonym	Cross-Schema alias, no data copying
Three-tier Cache	Result cache + metadata cache + local disk cache (AP supports PRELOAD)

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Key Differences vs Snowflake/Databricks

ClickZetta	Snowflake	Databricks	Difference
Workspace	Database	Catalog	One account can have multiple instances across clouds
VCluster (3 types)	Warehouse	SQL Warehouse	GP/AP/INTEGRATION separation
Studio (built-in)	Requires 3rd party	Requires 3rd party	Built-in scheduling/integration/quality/catalog
Dynamic Table (CBO)	Dynamic Table	Streaming Table	CBO-based, not stream-based
Synonym	—	—	ClickZetta-specific

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Studio Six Modules

Module	Core Capabilities
Data Development	Web IDE, supports SQL/Python/Shell/JDBC/Dynamic Table/Sync tasks
Task Scheduling	Cron scheduling + DAG orchestration + task groups + backfill + parameter variables
Data Integration	30+ data sources, no-code sync (batch/realtime/CDC)
Data Catalog	Global search, table details, data lineage, data preview
Data Quality	6-dimension rules (completeness/uniqueness/consistency/accuracy/validity/timeliness)
Operations Monitoring	Task instance operations + alert rules + Lark/WeCom notifications

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Brand Relationships

ClickZetta (technology brand) = Yunqi (domestic brand) = Singdata (international brand)

See references/brands-and-endpoints.md for service endpoints per environment.

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Storage Architecture

• Storage-compute separation: VCluster suspension incurs no compute charges
• Open format: internal tables based on Apache Iceberg
• Multi-cloud multi-region: Alibaba Cloud / Tencent Cloud / AWS
• Bring Your Own Storage (BYOS): supports your own OSS/S3/COS