[jira] [Created] (HIVE-22208) Column name with reserved keyword is unescaped when query includes join on table with mask column is re-written

["Riju Trivedi (Jira)" <ji...@apache.org>]

Riju Trivedi created HIVE-22208:
-----------------------------------

             Summary: Column name with reserved keyword is unescaped when query includes 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


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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