From 72c90a7212d2f0895b8cba025907b1c9ce907dba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bogumi=C5=82=20Kami=C5=84ski?= <bkamins@sgh.waw.pl>
Date: Sat, 7 Sep 2024 16:16:42 +0200
Subject: [PATCH 1/2] fix tests on nightly and 32-bit

---
 src/groupeddataframe/complextransforms.jl | 8 ++++++--
 test/io.jl                                | 4 ++--
 test/select.jl                            | 2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/groupeddataframe/complextransforms.jl b/src/groupeddataframe/complextransforms.jl
index 0f7fea6617..1a907de6f3 100644
--- a/src/groupeddataframe/complextransforms.jl
+++ b/src/groupeddataframe/complextransforms.jl
@@ -269,8 +269,12 @@ function _combine_rows_with_first!((firstrow,)::Ref{Any},
     # Create up to one task per thread
     # This has lower overhead than creating one task per group,
     # but is optimal only if operations take roughly the same time for all groups
-    basesize = max(1, cld(len - 1, Threads.nthreads()))
-    partitions = Iterators.partition(2:len, basesize)
+    if isthreadsafe(outcols, incols)
+        basesize = max(1, cld(len - 1, Threads.nthreads()))
+        partitions = Iterators.partition(2:len, basesize)
+    else
+        partitions = (2:len,)
+    end
     widen_type_lock = ReentrantLock()
     outcolsref = Ref{NTuple{<:Any, AbstractVector}}(outcols)
     type_widened = fill(false, length(partitions))
diff --git a/test/io.jl b/test/io.jl
index dee15ea7c2..bb15892dc3 100644
--- a/test/io.jl
+++ b/test/io.jl
@@ -760,7 +760,7 @@ end
     df = DataFrame(
         A=Int64[1,4,9,16,25,36,49,64],
         B = [
-            md"[DataFrames.jl](http://juliadata.github.io/DataFrames.jl)",
+            md"ABC",
             md"``\frac{x^2}{x^2+y^2}``",
             md"`Header`",
             md"This is *very*, **very**, very, very, very, very, very, very, very long line" ,
@@ -781,7 +781,7 @@ end
          Row │ A      B
              │ Int64  MD
         ─────┼──────────────────────────────────────────
-           1 │     1    DataFrames.jl (http://juliadat…
+           1 │     1    ABC
            2 │     4    \\frac{x^2}{x^2+y^2}
            3 │     9    Header
            4 │    16    This is very, very, very, very…
diff --git a/test/select.jl b/test/select.jl
index 3a8ad3b23b..02d84d4b93 100644
--- a/test/select.jl
+++ b/test/select.jl
@@ -3039,7 +3039,7 @@ end
     @test size(combine(df, :a => (x -> Any[]) => AsTable)) == (0, 0)
     df2 = combine(df, :a => (x -> NamedTuple{(:x,),Tuple{Int64}}[]) => AsTable)
     @test size(df2) == (0, 1)
-    @test eltype(df2.x) === Int
+    @test eltype(df2.x) === Int64
 end
 
 end # module

From faa224a7e9ad22fa07428210e4e47a71b1c1b506 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bogumi=C5=82=20Kami=C5=84ski?= <bkamins@sgh.waw.pl>
Date: Sat, 7 Sep 2024 17:20:19 +0200
Subject: [PATCH 2/2] additional test fix

---
 test/io.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/io.jl b/test/io.jl
index bb15892dc3..b566c655e8 100644
--- a/test/io.jl
+++ b/test/io.jl
@@ -793,7 +793,7 @@ end
     @test sprint(show, "text/csv", df) ==
         """
         \"A\",\"B\"
-        1,\"[DataFrames.jl](http://juliadata.github.io/DataFrames.jl)\"
+        1,\"ABC\"
         4,\"\$\\\\frac{x^2}{x^2+y^2}\$\"
         9,\"`Header`\"
         16,\"This is *very*, **very**, very, very, very, very, very, very, very long line\"