vmingchen commented on code in PR #1195:
URL:
https://github.com/apache/datafusion-ballista/pull/1195#discussion_r1986085830
##########
benchmarks/src/bin/tpch.rs:
##########
@@ -1534,6 +1562,86 @@ mod tests {
Ok(())
}
+ // Our queries do not have the LIMIT clause, so we need to apply it
+ // before comparing the results with the expected results.
Review Comment:
To provide more context, the ":n 100" lines in the official TPCH sql files
are called flags. They are handled by the `qsub` function in qgen.c file:
```c
/*
* FUNCTION qsub(char *qtag, int flags)
*
* based on the settings of flags, and the template file $QDIR/qtag.sql
* make the following substitutions to turn a query template into EQT
*
* String Converted to Based on
* ====== ============ ===========
* first line database <db_name>; -n from command line
* second line set explain on; -x from command line
* :<number> parameter <number>
* :k set number
* :o output to outpath/qnum.snum----
* -o from command line, SET_OUTPUT
* :s stream number
* :b BEGIN WORK; -a from command line, START_TRAN
* :e COMMIT WORK; -a from command line, END_TRAN
* :q query number
* :n<number> sets rowcount to be returned
*/
void
qsub(char *qtag, int flags)
```
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