chore: import upstream snapshot with attribution

testing/bats/dataloading/csv-load-with-no-tx-control.sql

@@ -0,0 +1,11 @@
+CREATE TABLE test (pk int primary key);
+INSERT INTO test VALUES (0), (1);
+
+CREATE TABLE test_info (id int, info varchar(255), test_pk int, primary key(id), foreign key (test_pk) references test(pk));
+
+COPY test_info FROM STDIN (FORMAT CSV, HEADER TRUE);
+id,info,test_pk
+4,string for 4,1
+5,string for 5,0
+6,string for 6,0
+\.