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https://issues.apache.org/jira/browse/HIVE-22208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16940814#comment-16940814
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Zoltan Haindrich commented on HIVE-22208:
-----------------------------------------
+1
> Column name with reserved keyword is unescaped when query including join on
> table with mask column is re-written
> ----------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-22208
> URL: https://issues.apache.org/jira/browse/HIVE-22208
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 3.1.0, 4.0.0
> Reporter: Riju Trivedi
> Assignee: Zoltan Matyus
> Priority: Critical
> Attachments: HIVE-22208.01.patch, HIVE-22208.02.patch
>
>
> Join query involving table with mask column and other having reserved
> keyword as column name fails with SemanticException during parsing re-written
> query :
> Original Query :
> {code:java}
> select a.`date`, b.nm
> from sample_keyword a
> join sample_mask b
> on b.id = a.id;
> {code}
> Re-written Query :
>
> {code:java}
> select a.date, b.nm
> from sample_keyword a
> join (SELECT `id`, CAST(mask_hash(nm) AS string) AS `nm`,
> BLOCK__OFFSET__INSIDE__FILE, INPUT__FILE__NAME, ROW__ID FROM
> `default`.`sample_mask` )`b`
> on b.id = a.id;
> {code}
> Re-written query does not have escape quotes for date column which cause
> SemanticException while parsing :
> {code:java}
> org.apache.hadoop.hive.ql.parse.ParseException: line 1:9 cannot recognize
> input near 'a' '.' 'date' in selection target
>
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.rewriteASTWithMaskAndFilter(
> SemanticAnalyzer.java:12084)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(
> SemanticAnalyzer.java:12298)
> at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(
> CalcitePlanner.java:360)
> at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(
> BaseSemanticAnalyzer.java:289)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:664)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1869)
> {code}
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