cockroachdb / cockroachdb/cockroach

sql/schemachanger: remove fallbacks for TRUNCATE in declarative schema changer

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branch-master C-enhancement T-sql-foundations
Dominant language
Go
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Forks
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PR merge metrics
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Description

Currently, the initial implementation for TRUNCATE inside the declarative schema changer has the following limitations:

- [ ] No ability to truncate table with index references from views / stored procedures / triggers. This will require the ability to recreate these references with updated references.
- [ ] Truncate is presently blocked within complex transactions where the primary key is being modified

Jira issue: CRDB-54503

Epic CRDB-31472

Contributor guide

Open the contributing guide

Research direction

Start by reading the declarative schema changer's existing TRUNCATE implementation, then consult Jira issue CRDB-54503 and epic CRDB-31472. Define completion around removing the listed fallbacks: support references from views, stored procedures, and triggers, and support complex transactions where the primary key changes.

Written by the indexing model from the issue text.

Assessment

Tech stack
go, sql
Domain
databases
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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