Vladimir Sitnikov created CALCITE-4332:
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Summary: Improve error when planning rule produces a relation with
a wrong rowtype
Key: CALCITE-4332
URL: https://issues.apache.org/jira/browse/CALCITE-4332
Project: Calcite
Issue Type: Improvement
Components: core
Affects Versions: 1.26.0
Reporter: Vladimir Sitnikov
Current coed in {{VolcanoPlanner}}:
{code:java}
assert RelOptUtil.equal(
"rel rowtype",
rel.getRowType(),
"equivRel rowtype",
equivRel.getRowType(),
Litmus.THROW);
equivRel = ensureRegistered(equivRel, null);
{code}
The suggested changes:
1) Use regular error {{IllegalArgumentException}} rather than an assertion
2) Make sure the exception message contains fine-grained information on what
went wrong. For instance: {{name: non nullable -> nullable; description:
character -> int; ...}}
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