[IGNITE-15194] Thin 3.0: Live Schema and Schema Evolution

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.0.0-alpha3
• Component/s: thin client
• Labels: iep-76 ignite-3
• Ignite Flags: Release Notes Required
• Assignee: Pavel Tupitsyn
• Reporter: Pavel Tupitsyn
• Created: 27/Jul/21 07:21
• Updated: 02/Dec/21 16:13
• Resolved: 02/Dec/21 16:13

Description

Implement live schema and schema evolution support in ClientTupleBuilder. See LiveSchemaTupleBuilderImpl for reference. This mode should be activated only when schemaMode is LIVE_SCHEMA - we'll need to propagate table properties to the client.

1. In live schema mode, extra columns in the tuple will be added to the schema
2. Otherwise, extra columns may belong to a schema that is yet unknown to the client

Issue Links

• is a child of: IGNITE-13616 IEP-54 Live schema for tables
• is superceded by: IGNITE-15901 Drop Live schema support.
• relates to: IGNITE-16023 Thin 3.0: Remove live schema leftovers from the protocol