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Allow any column name in property Parquet files #634

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Allow any column name in property Parquet files #634

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65fdefc
Allow any column name in property Parquet files.
darabos Oct 19, 2021
da849de
Fix lint.
darabos Dec 6, 2021
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17 changes: 5 additions & 12 deletions libtsuba/src/AddProperties.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -35,19 +35,12 @@ DoLoadProperties(

std::shared_ptr<arrow::Table> out = std::move(out_res.value());

std::shared_ptr<arrow::Schema> schema = out->schema();
if (schema->num_fields() != 1) {
return KATANA_ERROR(
tsuba::ErrorCode::InvalidArgument, "expected 1 field found {} instead",
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@darabos darabos Oct 19, 2021

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RenameColumns() performs this same check, so we can just rely on that.

schema->num_fields());
}

if (schema->field(0)->name() != expected_name) {
return KATANA_ERROR(
tsuba::ErrorCode::InvalidArgument, "expected {} found {} instead",
expected_name, schema->field(0)->name());
auto renamed = out->RenameColumns({expected_name});
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@darabos darabos Oct 19, 2021

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I'm not sure renaming is necessary. This way nobody outside of this function can even tell that the name in the Parquet file is not the same as in the metadata. Perhaps nobody looks at it anyway?

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@tylershunt tylershunt Oct 21, 2021

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Yeah, renaming is important since we rely on the arrow schema to name properties. thanks!

if (!renamed.ok()) {
std::shared_ptr<arrow::Schema> schema = out->schema();
return KATANA_ERROR(tsuba::ErrorCode::InvalidArgument, "{}", renamed.status().ToString());
}
return out;
return renamed.ValueOrDie();
}

} // namespace
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