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https://issues.apache.org/jira/browse/CALCITE-7629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18092249#comment-18092249
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Yu Xu edited comment on CALCITE-7629 at 6/29/26 6:52 AM:
---------------------------------------------------------
It's strange; I wrote a few tests in BabelTest locally based on the main
branch, but I don't seem to have reproduced the issue:
{code:java}
f.withSql("SELECT DATEDIFF(^EPOCH^, " + ts + ", " + ts2 + ")")
.fails("'EPOCH' is not a valid time frame in 'DATEDIFF'");
f.withSql("SELECT ^DATEDIFF(day, " + ts + ", " + ts2 + ", " + ts + ")^")
.fails("Invalid number of arguments to function 'DATEDIFF'. Was
expecting 3 arguments");
f.withSql("SELECT ^DATEDIFF(A, " + ts + ")^")
.fails("Invalid number of arguments to function 'DATEDIFF'. Was
expecting 3 arguments");{code}
was (Author: JIRAUSER307770):
It's strange; I wrote a few tests in `BabelTest` locally based on the `main`
branch, but I don't seem to have reproduced the issue:
{code:java}
f.withSql("SELECT DATEDIFF(^EPOCH^, " + ts + ", " + ts2 + ")")
.fails("'EPOCH' is not a valid time frame in 'DATEDIFF'");
f.withSql("SELECT ^DATEDIFF(day, " + ts + ", " + ts2 + ", " + ts + ")^")
.fails("Invalid number of arguments to function 'DATEDIFF'. Was
expecting 3 arguments");
f.withSql("SELECT ^DATEDIFF(A, " + ts + ")^")
.fails("Invalid number of arguments to function 'DATEDIFF'. Was
expecting 3 arguments");{code}
> DATEDIFF is shown in error messages as TIMESTAMPDIFF
> ----------------------------------------------------
>
> Key: CALCITE-7629
> URL: https://issues.apache.org/jira/browse/CALCITE-7629
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.42.0
> Reporter: Mihai Budiu
> Priority: Minor
>
> The parser uses SqlStdOperatorTable.TIMESTAMP_DIFF to represent DATEDIFF. In
> consequence, programs that use DATEDIFF will actually unparse as
> TIMESTAMPDIFF, and will report errors about TIMESTAMPDIFF, e.g.:
> SELECT(DATEDIFF(a, b)) FROM T
> will produce an error message like:
> Invalid number of arguments to function 'TIMESTAMPDIFF'. Was expecting 3
> arguments
> This is confusing for the users.
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