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https://issues.apache.org/jira/browse/DRILL-7615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17052034#comment-17052034
]
ASF GitHub Bot commented on DRILL-7615:
---------------------------------------
arina-ielchiieva commented on pull request #2006: DRILL-7615: UNION ALL query
returns the wrong result for the decimal value
URL: https://github.com/apache/drill/pull/2006#discussion_r388235923
##########
File path:
exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestVarlenDecimal.java
##########
@@ -139,8 +145,32 @@ public void testWriteReadCsv() throws Exception {
.baselineValues(new BigDecimal(bigDecimalValue))
.go();
} finally {
- resetSessionOption(ExecConstants.OUTPUT_FORMAT_OPTION);
- test("drop table if exists dfs.tmp.%s", tableName);
+ client.resetSession(ExecConstants.OUTPUT_FORMAT_OPTION);
+ run("drop table if exists dfs.tmp.%s", tableName);
+ }
+ }
+
+ @Test
+ public void testUnionAllWithDifferentScales() throws Exception {
+ try {
+ run("create table dfs.tmp.t as select cast(999999999999999 as
decimal(15,0)) as d");
+
+ String query = "select cast(1000 as decimal(10,1)) as d\n" +
+ "union all \n" +
+ "select 596.000 as d \n" +
+ "union all \n" +
+ "select d from dfs.tmp.t";
+
+ testBuilder()
+ .sqlQuery(query)
+ .unOrdered()
+ .baselineColumns("d")
+ .baselineValues(new BigDecimal("1000.000"))
+ .baselineValues(new BigDecimal("596.000"))
+ .baselineValues(new BigDecimal("999999999999999.000"))
Review comment:
Thanks for explanation.
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> UNION ALL query returns the wrong result for the decimal value
> --------------------------------------------------------------
>
> Key: DRILL-7615
> URL: https://issues.apache.org/jira/browse/DRILL-7615
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.14.0
> Reporter: Vova Vysotskyi
> Assignee: Vova Vysotskyi
> Priority: Major
> Labels: ready-to-commit
> Fix For: 1.18.0
>
>
> The following query:
> {code:java}
> select cast(1000 as decimal(10,1))
> union all
> select 596.000
> {code}
> returns incorrect result:
> {code:java}
> 10.000
> 596.000
> {code}
> The expected result is 1000.000 for the first record.
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