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operators/accumulator/push
$push
Function $push
$push
(
coll
:
unknown
[]
,
expr
:
unknown
,
options
:
Options
)
:
unknown
[]
Returns an array of all values for the selected field among for each document in that group.
Parameters
coll
:
unknown
[]
expr
:
unknown
options
:
Options
Returns
unknown
[]
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Returns an array of all values for the selected field among for each document in that group.