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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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Evgeny Stanilovsky updated IGNITE-20134:
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Fix Version/s: 3.2
(was: 3.1)
> 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: 3.2
>
>
> 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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