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|
$t = SELECT * FROM AS_TABLE([<|key: 1, a: 2.0, b: 3.0|>,<|key: 1, a: 3.0, b: 4.0|>]);
$p =
SELECT
key,Covar(a, b) as a
FROM $t
GROUP BY
key
with combine
;
$p = PROCESS $p;
--select FormatType(TypeOf($p));
select * from $p;
$p = SELECT
key,Covar(a) as a
FROM $p
GROUP BY
key
with combinestate
;
$p = PROCESS $p;
--select FormatType(TypeOf($p));
select * from $p;
$p = SELECT
key,Covar(a) as a
FROM $p
GROUP BY
key
with mergestate
;
$p = PROCESS $p;
--select FormatType(TypeOf($p));
select * from $p;
$p1 = SELECT
key,Covar(a) as a
FROM $p
GROUP BY
key
with mergefinalize
;
$p1 = PROCESS $p1;
--select FormatType(TypeOf($p1));
select * from $p1;
$p2 = SELECT
key,Covar(a) as a
FROM (select key, just(a) as a from $p)
GROUP BY
key
with mergemanyfinalize
;
$p2 = PROCESS $p2;
--select FormatType(TypeOf($p2));
select * from $p2;
$p3 =
SELECT
key,Covar(a, b) as a
FROM $t
GROUP BY
key
with finalize
;
$p3 = PROCESS $p3;
--select FormatType(TypeOf($p));
select * from $p3;
|
