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https://issues.apache.org/jira/browse/HIVE-1926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066304#comment-13066304
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Matt Martin commented on HIVE-1926:
-----------------------------------
I also ran into this issue and another similar but probably unrelated issue. In
particular, I noticed that the following script works fine:
{code:sql}
select * from dummy limit 1;
{code}
but the following version of the script generates the same error as dan f
reported (i.e. FAILED: Parse Error: line 0:-1 cannot recognize input '<EOF>'):
{code:sql}
select * from dummy limit 1;
– unsafe end of script comment
{code}
An error caused by a comment at the end of a script is probably less severe
than the original error reported by dan f since it does not actually affect the
"select * ..." statement which precedes it. That being said, it would still be
nice if the second script ran without any errors.
In general, I would guess that both errors represent a fairly common class of
errors which are especially likely to occur if people comment out sections of
their script.
> semicolon in comment causes parse error
> ---------------------------------------
>
> Key: HIVE-1926
> URL: https://issues.apache.org/jira/browse/HIVE-1926
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: dan f
>
> semicolons in sql comments cause a parse error when trying to execute the
> query via hive -f
> As an example, this query runs fine:
> -- a safe comment
> select * from table;
> but this query
> -- an unsafe comment;
> select * from table;
> results in:
> FAILED: Parse Error: line 0:-1 cannot recognize input '<EOF>'
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