message: Expand column_names test case
diff: # name: test/sql/copy/csv/column_names.test
  -# description: Test read CSV function in a recursive CTE
  +# description: Test correct column name output in read_csv functions
  # group: [csv]
  statement ok
  @@ -21,3 +21,38 @@ SELECT rsID, chr, pos, refb, altb FROM t1
  1090 8 402108 C G,T
  11 7 11364201 C T
  1184 6 187649 T A,C,G
  +
  +statement ok
  +CREATE TABLE t2 AS SELECT * FROM read_csv_auto('test/sql/copy/csv/data/test/issue2518.csv', header=False, columns={'rsID':'INT', 'CHR': 'VARCHAR', 'POS': 'INT','REFB': 'VARCHAR','ALTB':'VARCHAR'}, AUTO_DETECT=0)
  +
  +query IIIII
  +SELECT rsID, chr, pos, refb, altb FROM t2
  +----
  +4690 1 14673 G A,C,T
  +5 7 91839110 C T
  +6 7 91747131 A G
  +7 7 91779557 T A
  +8 7 92408329 C T
  +9 7 92373453 TG T
  +10 7 92383888 A C,G,T
  +1090 8 402108 C G,T
  +11 7 11364201 C T
  +1184 6 187649 T A,C,G
  +
  +
  +statement ok
  +CREATE TABLE t3 AS SELECT * FROM read_csv_auto('test/sql/copy/csv/data/test/issue2518.csv', columns={'rsID':'INT', 'CHR': 'VARCHAR', 'POS': 'INT','REFB': 'VARCHAR','ALTB':'VARCHAR'})
  +
  +query IIIII
  +SELECT rsID, chr, pos, refb, altb FROM t3
  +----
  +4690 1 14673 G A,C,T
  +5 7 91839110 C T
  +6 7 91747131 A G
  +7 7 91779557 T A
  +8 7 92408329 C T
  +9 7 92373453 TG T
  +10 7 92383888 A C,G,T
  +1090 8 402108 C G,T
  +11 7 11364201 C T
  +1184 6 187649 T A,C,G
  