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https://issues.apache.org/jira/browse/CALCITE-6203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Caican Cai updated CALCITE-6203:
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Attachment: 2024-01-15 22-42-23屏幕截图.png
> Avg operator test in SparkAdapterTest
> -------------------------------------
>
> Key: CALCITE-6203
> URL: https://issues.apache.org/jira/browse/CALCITE-6203
> Project: Calcite
> Issue Type: Test
> Components: spark
> Affects Versions: 1.36.0
> Reporter: Caican Cai
> Priority: Minor
> Fix For: 1.37.0
>
> Attachments: 2024-01-15 22-42-23屏幕截图.png
>
>
> I test the avg operator in SparkAdapterTest
> sql test：
> {color:#cc7832}final {color}String sql = {color:#6a8759}"select sum(x) as
> SUM_X, min(y) as MIN_Y, max(y) as MAX_Y, avg(x) as
> AVG_X,"{color}{color:#6a8759} {color}+ {color:#6a8759}"count(*) as CNT_Y,
> count(distinct y) as
> CNT_DIST_Y{color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#6a8759}
> {color}+ {color:#6a8759}"from " {color}+ {color:#9876aa}VALUES2 {color}+
> {color:#6a8759}"{color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#6a8759}
> {color}+ {color:#6a8759}"group by x"{color}{color:#cc7832};{color}
>
> {color:#cc7832}result：{color}
> {color:#cc7832}final {color}String plan =
> {color:#6a8759}"PLAN="{color}{color:#6a8759} {color}+
> {color:#6a8759}"EnumerableCalc(expr#0..5=[\\{inputs}],
> expr#6=[CAST($t1):INTEGER NOT NULL], expr#7=[CAST($t2):CHAR(1) NOT NULL],
> expr#8=[CAST($t3):CHAR(1) NOT NULL], expr#9=[CAST($t4):BIGINT NOT NULL],
> SUM_X=[$t6], MIN_Y=[$t7], MAX_Y=[$t8], AVG_X=[$t0], CNT_Y=[$t9],
> CNT_DIST_Y=[$t5]){color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#6a8759}
> {color}+ {color:#6a8759}" EnumerableAggregate(group=[\\{0}], SUM_X=[MIN($2)
> FILTER $7], MIN_Y=[MIN($3) FILTER $7], MAX_Y=[MIN($4) FILTER $7],
> CNT_Y=[MIN($5) FILTER $7], CNT_DIST_Y=[COUNT($1) FILTER
> $6]){color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#6a8759}
> {color}+ {color:#6a8759}" EnumerableCalc(expr#0..6=[\\{inputs}], expr#7=[0],
> expr#8=[=($t6, $t7)], expr#9=[1], expr#10=[=($t6, $t9)],
> proj#0..5=[\\{exprs}], $g_0=[$t8],
> $g_1=[$t10]){color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#6a8759}
> {color}+ {color:#6a8759}" EnumerableAggregate(group=[\\{0, 1}],
> groups=[[\\{0, 1}, \\{0}]], SUM_X=[$SUM0($0)], MIN_Y=[MIN($1)],
> MAX_Y=[MAX($1)], CNT_Y=[COUNT()], $g=[GROUPING($0,
> $1)]){color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#6a8759}
> {color}+ {color:#6a8759}" EnumerableValues(tuples=[[\\{ 1, 'a' }, \\{ 2, 'b'
> }, \\{ 1, 'b' }, \\{ 2, 'c' }, \\{ 2, 'c'
> }]]){color}{color:#cc7832}\n{color}{color:#6a8759}"{color}{color:#cc7832};{color}
>
> It can be found that there is no corresponding avg operator in
> EnumerableAggregate and EnumerableCalc. Why is this? Spark sql will split the
> avg operator into sum/count form. I don’t know if this is a bug.
>
>
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