gandronchik commented on code in PR #2334:
URL: https://github.com/apache/arrow-datafusion/pull/2334#discussion_r857509283
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datafusion/core/src/execution/context.rs:
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@@ -3243,7 +3243,7 @@ mod tests {
"SELECT cat, SUM(i) AS total FROM (
SELECT i, 'a' AS cat FROM catalog_a.schema_a.table_a
UNION ALL
- SELECT i, 'b' AS cat FROM catalog_b.schema_b.table_b
Review Comment:
to cover case when columns names in union inputs are not the same.
example:
SELECT 1 a UNION ALL SELECT 2;
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