Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/19866 )

Change subject: IMPALA-12126: fix keywords and builtin function names conflict.
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/19866/1/fe/src/test/java/org/apache/impala/analysis/ToSqlTest.java
File fe/src/test/java/org/apache/impala/analysis/ToSqlTest.java:

http://gerrit.cloudera.org:8080/#/c/19866/1/fe/src/test/java/org/apache/impala/analysis/ToSqlTest.java@656
PS1, Line 656:     testToSql("select 1 as `ilike`", "SELECT 1 `ilike`");
hmm, I can run this without the fix. I think the problem is Impala unquote the 
alias name when creating the view in HMS. For instance, for the view created in 
Impala as

 create view v as select 1 `ilike`;

run DESCRIBE FORMATTED on it in Hive, I can see the alias name "ilike" is 
unquoted:

 | # View Information            | NULL                    | NULL               
   |
 | Original Query:               | SELECT 1 ilike          | NULL               
   |
 | Expanded Query:               | SELECT 1 ilike          | NULL               
   |

However, if I create the view in Hive, the expanded query has the quoted alias:

 | # View Information            | NULL                       | NULL            
    |
 | Original Query:               | select 1 as ilike          | NULL            
    |
 | Expanded Query:               | select 1 as `ilike`        | NULL            
    |

Impala can load the view created in Hive. I think what we should fix is how 
Impala create the view in HMS.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I818fbd5170576d40ee9d50798b42fe4532d7dbeb
Gerrit-Change-Number: 19866
Gerrit-PatchSet: 1
Gerrit-Owner: Xiang Yang <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Wenzhe Zhou <[email protected]>
Gerrit-Reviewer: Xiang Yang <[email protected]>
Gerrit-Comment-Date: Thu, 29 Jun 2023 05:02:31 +0000
Gerrit-HasComments: Yes

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