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https://issues.apache.org/jira/browse/PHOENIX-1580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14393386#comment-14393386
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Alicia Ying Shu commented on PHOENIX-1580:
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[~jamestaylor] Filed PHOENIX-1804 for OrderedResultIterator.explain() issue.
Using the following gets plan steps at thread level as well. It shows "Union
All 8 queries" for union all 2 queries.
public ExplainPlan getExplainPlan() throws SQLException {
+ List<String> steps = new ArrayList<String>();
+ steps.add("UNION ALL " + plans.size() + " queries\n");
+ ResultIterator iterator = getIterator(Collections.emptyList());
+ iterator.explain(steps);
+ return new ExplainPlan(steps);
> Support UNION ALL
> -----------------
>
> Key: PHOENIX-1580
> URL: https://issues.apache.org/jira/browse/PHOENIX-1580
> Project: Phoenix
> Issue Type: Bug
> Reporter: Alicia Ying Shu
> Assignee: Alicia Ying Shu
> Attachments: PHOENIX-1580-grammar.patch, Phoenix-1580-v1.patch,
> Phoenix-1580-v2.patch, Phoenix-1580-v3.patch, Phoenix-1580-v4.patch,
> Phoenix-1580-v5.patch, Phoenix-1580-v6.patch, phoenix-1580-v1-wipe.patch,
> phoenix-1580.patch, unionall-wipe.patch
>
>
> Select * from T1
> UNION ALL
> Select * from T2
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