should be it

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

@@ -0,0 +1,59 @@
+# name: test/sql/copy/csv/test_date.test
+# description: Test date copy
+# group: [csv]
+
+statement ok
+PRAGMA enable_verification
+
+statement ok
+CREATE TABLE date_test(d date);
+
+query I
+COPY date_test FROM 'data/csv/test/date.csv';
+----
+1
+
+query T
+SELECT cast(d as string) FROM date_test;
+----
+2019-06-05
+
+query TT
+Select * from read_csv('data/csv/custom_date.csv', header=true, dateformat='%m/%d/%Y, %-I:%-M %p', types = ['BIGINT', 'DATE'] );
+----
+123	2023-01-02
+124	2023-12-02
+
+query TT
+Select * from read_csv('data/csv/custom_date.csv', header=true, dateformat='%m/%d/%Y, %-I:%-M %p');
+----
+123	2023-01-02
+124	2023-12-02
+
+query TT
+Select * from read_csv('data/csv/custom_date.csv', header=true, timestampformat='%m/%d/%Y, %-I:%-M %p', types = ['BIGINT', 'TIMESTAMP'] );
+----
+123	2023-01-02 12:33:00
+124	2023-12-02 11:57:00
+
+query TT
+Select * from read_csv('data/csv/custom_date.csv', header=true, timestampformat='%m/%d/%Y, %-I:%-M %p');
+----
+123	2023-01-02 12:33:00
+124	2023-12-02 11:57:00
+
+# Check that less than two numbers and @ separator does not become a date
+query III
+select typeof(#1),typeof(#2),typeof(#3) FROM 'data/csv/versions.csv' limit 1
+----
+VARCHAR	DATE	VARCHAR
+
+query I
+select typeof(#1) FROM read_csv('data/csv/dates_special_format.csv', dateformat = '%b %-d, %Y', columns = {'Date': 'DATE'}) limit 1;
+----
+DATE
+
+query I
+select typeof(#1) FROM read_csv('data/csv/dates_special_format.csv', dateformat = '%b %-d, %Y') limit 1;
+----
+DATE