should be it

external/duckdb/test/sql/copy/csv/tsv_copy.test

@@ -0,0 +1,27 @@
+# name: test/sql/copy/csv/tsv_copy.test
+# description: Test TSV Copy round-trip
+# group: [csv]
+
+statement ok
+PRAGMA enable_verification
+
+statement ok
+CREATE TABLE people(id INTEGER, name VARCHAR);
+
+statement ok
+INSERT INTO people VALUES (1, 'Mark'), (2, 'Hannes');
+
+statement ok
+COPY people TO '__TEST_DIR__/test.tsv' WITH (DELIMITER '\t');
+
+query II
+SELECT * FROM '__TEST_DIR__/test.tsv'
+----
+1	Mark
+2	Hannes
+
+query II
+SELECT * FROM read_csv('__TEST_DIR__/test.tsv', sep='\t', columns={'id': 'INTEGER', 'name': 'VARCHAR'})
+----
+1	Mark
+2	Hannes