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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/25 11:05:33 UTC

[GitHub] [arrow-datafusion] gandronchik commented on a diff in pull request #2334: fix: union schema

gandronchik commented on code in PR #2334:
URL: https://github.com/apache/arrow-datafusion/pull/2334#discussion_r857509283


##########
datafusion/core/src/execution/context.rs:
##########
@@ -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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