Edit this pageDocumentationArchivesv17.0 (Archived)User GuidesVSchema and Query ServingVSchema and Query ServingConfiguring VSchema for serving queries Documentation Documentationv21.0 (Development) Overview Get Started Concepts User Guides Reference v20.0 (Stable) Overview Get Started Concepts User Guides Reference v19.0 (Stable) Overview Get Started Concepts User Guides Reference v18.0 (Stable) Overview Get Started Concepts User Guides Reference Learning Resources Contribute Build on macOS PR Naming Conventions Build on Ubuntu/Debian Build on CentOS GitHub Workflow Coding Standards Sample First Issue Parser and AST Troubleshoot Elevated query latency on primary Primary starts up read-only Vitess sees the wrong tablet as primary FAQ Releases Release Cycle Release Team Release Notes Roadmap Design Docs Query Serving Online DDL VReplication VTTablet Miscellaneous Archives Older Version Docs v17.0 (Archived) v16.0 (Archived) v15.0 (Archived) v14.0 (Archived) v13.0 (Archived) v12.0 (Archived) v11.0 (Archived)Pages in this sectionOverviewSharding GuidelinesUnsharded KeyspaceSharded KeyspaceSequencesShared Vindexes and Foreign KeysUnique Lookup VindexesNon-Unique Lookup VindexesLookup as Primary VindexBackfill Lookup VindexesSubsharding VindexAdvanced VSchema PropertiesPictorial Summary