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https://issues.apache.org/jira/browse/IGNITE-22703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Iurii Gerzhedovich updated IGNITE-22703:
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Labels: ignite-3 (was: sql)
> Sql. Low performance for select with mixed projection
> -----------------------------------------------------
>
> Key: IGNITE-22703
> URL: https://issues.apache.org/jira/browse/IGNITE-22703
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Iurii Gerzhedovich
> Priority: Major
> Labels: ignite-3
>
> We have low performance in case we reorder columns in SELECT statement.
> Below result of my laptop for SELECT from a table with 600k rows. The first
> one is to select all columns in the same order as was declared during
> creating the table, the second one - reorder the first and the second columns
> in the select list.
>
> ||Benchmark||(queryId) ||Mode||Cnt||Score||Error||Units||
> |TpchBenchmark.run |1|avgt|20|206.522|± 1.167|ms/op|
> |TpchBenchmark.run |2|avgt|20|784.153|± 1.792|ms/op|
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