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https://issues.apache.org/jira/browse/CALCITE-3675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-3675:
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Labels: pull-request-available (was: )
> SQL to Rel conversion is broken for coalesce on nullable field
> --------------------------------------------------------------
>
> Key: CALCITE-3675
> URL: https://issues.apache.org/jira/browse/CALCITE-3675
> Project: Calcite
> Issue Type: Bug
> Reporter: Anton Haidai
> Priority: Major
> Labels: pull-request-available
>
> Reproducible in master (06ac187a342f82a4b69e4c752ccdce0c269a350d):
> 1.22.0-SNAPSHOT
> SqlToRelConverterTest:
> {code}
> @Test public void testCoalesceOnNullableField() {
> final String sql = "select coalesce(mgr, 0) from emp";
> sql(sql).ok();
> }
> {code}
> Error:
> {code}
> Conversion to relational algebra failed to preserve datatypes:
> validated type:
> RecordType(INTEGER NOT NULL EXPR$0) NOT NULL
> converted type:
> RecordType(INTEGER EXPR$0) NOT NULL
> rel:
> LogicalProject(EXPR$0=[CASE(IS NOT NULL($3), $3, 0)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> {code}
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