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https://issues.apache.org/jira/browse/IGNITE-20134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Puchkovskiy updated IGNITE-20134:
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Description:
When an attempt to change type of a column that is included in an index is
made, this should only be permitted if the representation of the column values
in the index will remain unchanged (and, hence, index rebuild will not be
needed).
The following changes are acceptable:
* integral->integral (as integral types are represented as varints)
* integral->decimal (with enough precision) and float->double for SORTED
indices where the ordering remains the same
* integral->decimal and decimal->decimal (with enough precision) for HASH
indices (requires IGNITE-20133)
was:
When an attempt to change type of a column that is included in an index is
made, this should only be permitted if the representation of the column values
in the index will remain unchanged (and, hence, index rebuild will not be
needed).
The following changes are acceptable:
* integral->integral (as integral types are represented as varints)
* integral->decimal (with enough precision) and float->double for SORTED
indices where the ordering remains the same
* integral->decimal and decimal->decimal (with enough precision) for HASH
indices [requires IGNITE-20133]
> Only allow changing type of indexed column when indexed values representation
> remains the same
> ----------------------------------------------------------------------------------------------
>
> Key: IGNITE-20134
> URL: https://issues.apache.org/jira/browse/IGNITE-20134
> Project: Ignite
> Issue Type: Improvement
> Reporter: Roman Puchkovskiy
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-beta2
>
>
> When an attempt to change type of a column that is included in an index is
> made, this should only be permitted if the representation of the column
> values in the index will remain unchanged (and, hence, index rebuild will not
> be needed).
> The following changes are acceptable:
> * integral->integral (as integral types are represented as varints)
> * integral->decimal (with enough precision) and float->double for SORTED
> indices where the ordering remains the same
> * integral->decimal and decimal->decimal (with enough precision) for HASH
> indices (requires IGNITE-20133)
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