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Fix nil map merges #4601

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Merged
merged 3 commits into from
Apr 7, 2025
Merged

Fix nil map merges #4601

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5bda600
fix nil merges
greg-rychlewski Apr 5, 2025
b53bfc4
update test
greg-rychlewski Apr 7, 2025
36a5a5e
update test
greg-rychlewski Apr 7, 2025
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11 changes: 10 additions & 1 deletion lib/ecto/repo/queryable.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -310,7 +310,7 @@ defmodule Ecto.Repo.Queryable do

defp process(row, {:merge, left, right}, from, adapter) do
{left, row} = process(row, left, from, adapter)
{right, row} = process(row, right, from, adapter)
{right, row} = process_merge(row, right, from, adapter)

data =
case {left, right} do
Expand Down Expand Up @@ -427,6 +427,15 @@ defmodule Ecto.Repo.Queryable do
end)
end

defp process_merge(row, {:source, {source, schema}, prefix, types}, _from, adapter) do
struct = Ecto.Schema.Loader.load_struct(schema, prefix, source)
struct_load!(types, row, [], false, struct, adapter)
end

defp process_merge(row, process, from, adapter) do
process(row, process, from, adapter)
end

@compile {:inline, load!: 5}
defp load!(type, value, field, struct, adapter) do
case Ecto.Type.adapter_load(adapter, type, value) do
Expand Down
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