lidavidm commented on a change in pull request #10284:
URL: https://github.com/apache/arrow/pull/10284#discussion_r629433054
##########
File path: cpp/src/arrow/dataset/file_csv_test.cc
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@@ -223,6 +223,24 @@ N/A
EXPECT_EQ(*actual, Schema({field("f64", float64())}));
}
+TEST_P(TestCsvFileFormat, InspectWithCustomConvertOptions) {
+ // Regression test for ARROW-12083
+ auto source = GetFileSource(R"(actually_string
+1.0
+
+N/A
+2
+whoops)");
+ auto defaults = std::make_shared<CsvFragmentScanOptions>();
+ // Prevent type inference from seeing the string value
+ defaults->read_options.block_size = 20;
+ // Override the inferred type
+ defaults->convert_options.column_types["actually_string"] = utf8();
Review comment:
Done. I also realized there was no need to fiddle with block_size, we
can just check that by default it infers float64 and that with the option it
infers string.
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