Maksim Zhuravkov created IGNITE-19307:
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Summary: Sql. Set operation: Conversion to relational algebra
failed to preserve datatypes.
Key: IGNITE-19307
URL: https://issues.apache.org/jira/browse/IGNITE-19307
Project: Ignite
Issue Type: Bug
Components: sql
Environment: The following query fails with "Conversion to relational
algebra failed to preserve datatypes"
{code:java}
@Test
public void test() {
sql("CREATE TABLE tt (id integer primary key, test_key integer)");
sql("INSERT INTO tt VALUES(1, 100)");
assertQuery("SELECT test_key FROM tt UNION ALL SELECT '1000'").check();
}
{code}
Although the same expression with literal works as expected:
{code:java}
@Test
public void test2() {
assertQuery("SELECT 100 UNION ALL SELECT '1000'").check();
}
{code}
Error:
{code:java}
java.lang.AssertionError: Conversion to relational algebra failed to preserve
datatypes:
validated type:
RecordType(VARCHAR CHARACTER SET "UTF-8" NOT NULL TEST_KEY) NOT NULL
converted type:
RecordType(VARCHAR CHARACTER SET "UTF-8" EXPR$0) NOT NULL
rel:
LogicalUnion(all=[true])
LogicalProject(EXPR$0=[CAST($1):VARCHAR CHARACTER SET "UTF-8"])
IgniteLogicalTableScan(table=[[PUBLIC, TT]])
LogicalValues(tuples=[[{ _UTF-8'1000' }]])
{code}
Reporter: Maksim Zhuravkov
Fix For: 3.0.0-beta2
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