Hi,
I am currently having an issue in regards to trying to access properties in my merge stage during my aggregation pipeline.
So I have the following merge stage:
{ $project: {
test: "$someText"
}}.
$merge: {
into: {db: 'test',coll: 'documentTest'},
on: '_id',
let: {text: "$test"},
whenMatched: [{$set: {
title: "$$text",
}}],
whenNotMatched: 'insert'
}
But my realm function which runs the pipelines return the following error:
PlanExecutor error during aggregation :: caused by :: Invalid $set :: caused by :: Use of undefined variable: text
FYI. When creating the pipeline using the aggregation tab on compass, it does not give an error before running the pipeline.
Is there something I am missing?
Hope someone can help