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https://issues.apache.org/jira/browse/IGNITE-19413?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey Mashenkov updated IGNITE-19413:
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Description:
Implement ALTER COLUMN ddl commands to change column type and column defaults.
It includes:
# Describe parser grammar for the DDL commands.
# Transparent row upgrading from prev to the next schema version.
# Optimizations, exploiting compatibility between previous and next schema
versions.
# Support simplest cases at least like constraint relaxation and/or type
widening.
# Support asynchronous data validation for type narrowing or constraint
hardening.
was:Implement ALTER COLUMN ddl commands
> Ignite 3.0: Change column type feature
> --------------------------------------
>
> Key: IGNITE-19413
> URL: https://issues.apache.org/jira/browse/IGNITE-19413
> Project: Ignite
> Issue Type: Epic
> Components: sql
> Reporter: Andrey Mashenkov
> Priority: Major
>
> Implement ALTER COLUMN ddl commands to change column type and column defaults.
> It includes:
> # Describe parser grammar for the DDL commands.
> # Transparent row upgrading from prev to the next schema version.
> # Optimizations, exploiting compatibility between previous and next schema
> versions.
> # Support simplest cases at least like constraint relaxation and/or type
> widening.
> # Support asynchronous data validation for type narrowing or constraint
> hardening.
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