[SPARK-14001][SQL] support multi-children Union in SQLBuilder #11818
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cc @liancheng @yhuai |
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LGTM |
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Test build #53527 has finished for PR 11818 at commit
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Merging to master. |
roygao94
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Mar 22, 2016
## What changes were proposed in this pull request? The fix is simple, use the existing `CombineUnions` rule to combine adjacent Unions before build SQL string. ## How was this patch tested? The re-enabled test Author: Wenchen Fan <wenchen@databricks.com> Closes apache#11818 from cloud-fan/bug-fix.
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What changes were proposed in this pull request?
The fix is simple, use the existing
CombineUnionsrule to combine adjacent Unions before build SQL string.How was this patch tested?
The re-enabled test