add show method for Parquet.Table

Add a custom `show` method for Parquet.Table, to avoid invoking the default `show` method that triggers a load of data.
JuliaIO · Mar 3, 2021 · 7184fcb · 7184fcb
1 parent c3337a9
commit 7184fcb
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diff --git a/src/show.jl b/src/show.jl
@@ -212,3 +212,7 @@ function show(io::IO, par::Parquet.File)
     println(io, "    created by: $(meta.created_by)")
     println(io, "    cached: $(length(par.page_cache.refs)) column chunks")
 end
+
+function show(io::IO, table::Parquet.Table)
+    println(io, "Parquet.Table(\"$(getfield(table, :path))\")")
+end
diff --git a/test/test_load.jl b/test/test_load.jl
@@ -290,6 +290,10 @@ function test_load_file()
         partitions = Tables.partitions(table)
         @test length(partitions) == 10
         @test length(collect(partitions)) == 10
+
+        iob = IOBuffer()
+        show(iob, table)
+        @test startswith(String(take!(iob)), "Parquet.Table(")
     end
 end