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https://issues.apache.org/jira/browse/IGNITE-18883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Iurii Gerzhedovich updated IGNITE-18883:
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Epic Link: IGNITE-22700
> Bug. Potentially incorrect definition of rows to insert for MERGE
> -----------------------------------------------------------------
>
> Key: IGNITE-18883
> URL: https://issues.apache.org/jira/browse/IGNITE-18883
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Reporter: Konstantin Orlov
> Priority: Major
> Labels: ignite-3
>
> Currently we decide whether to insert row or to update row by taking a look
> at value at updateOffset. The problem here is that NULL can be a legit value,
> but we incorrectly put this row to insert collection:
> {code:java}
> // ModifyNode#splitMerge
> private Pair<List<RowT>, List<RowT>> splitMerge(List<RowT> rows) {
> ...
> if (!hasUpsertSemantic) {
> ...
> } else {
> ...
> for (RowT row : rows) {
> if (handler.get(updateColumnOffset, row) == null) {
> rowsToInsert.add(row);
> } else {
> rowsToUpdate.add(row);
> }
> }
> {code}
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