NullPointerException with INSERT INTO ... from UNION and columns generated from
expressions
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Key: DERBY-4425
URL: https://issues.apache.org/jira/browse/DERBY-4425
Project: Derby
Issue Type: Bug
Components: SQL
Affects Versions: 10.5.3.0, 10.5.1.1, 10.6.0.0
Reporter: Knut Anders Hatlen
This bug is similar to DERBY-4419, only that it uses columns that are
auto-generated from expressions and not identity columns. The proposed fix for
DERBY-4419 only addresses the case with an identity column.
ij> create table t1(x int);
0 rows inserted/updated/deleted
ij> create table t2(x int);
0 rows inserted/updated/deleted
ij> create table t3(x int, y generated always as (2*x));
0 rows inserted/updated/deleted
ij> insert into t3(x) select * from t1 union select * from t2;
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
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