Schema Selection

The Schema Selection step determines which schema subjects from the source registry will be migrated to the destination. This step appears only when schema migration is enabled.

Schema Overview

A top panel summarizes the schema landscape:

Metric	Description
Compatible Schemas	Schemas that can be migrated without issues.
Conflicting Schemas	Schemas that have conflicts with the destination registry (for example, ID collisions or incompatible types).

Migration Mode

Two modes are available:

Mode	Description
Migrate All	Toggle this option to select every schema subject from the source registry. No manual selection is required.
Selective	When Migrate All is off, choose individual subjects or use patterns to build a targeted selection.

Selection Methods

Manual Selection

Use the checkboxes next to each schema subject to select individual schemas for migration.

Pattern Matching

Enter wildcard patterns to select schemas by subject name. For example:

Pattern	Result
order-*	Selects all subjects starting with “order-”.
*-value	Selects all value schemas.

Exclusion Patterns

Define patterns to exclude specific subjects. For example:

Pattern	Result
*.test	Excludes subjects ending with “.test”.
internal-*	Excludes subjects starting with “internal-”.

Monitoring Your Selection

The Selection Summary panel updates in real time:

Field	Description
Schemas Selected	The count of schema subjects currently selected.
Compatibility Status	An overall status indicating whether all selected schemas are compatible with the destination registry.

Use the Search bar to filter subjects by name, and the Visible Filter to toggle between all schemas and selected schemas.

Caution

Schema subject selection and regex-based filtering are not applicable when using WarpStream Schema Linking. WarpStream uses context-level all-or-nothing replication, meaning all subjects in the DEFAULT context are migrated.