1 files changed, 98 insertions, 0 deletions
diff --git a/src/pl/tcl/sql/pltcl_transaction.sql b/src/pl/tcl/sql/pltcl_transaction.sql
new file mode 100644
index 00000000000..c752faf6654
--- /dev/null
+++ b/src/pl/tcl/sql/pltcl_transaction.sql
@@ -0,0 +1,98 @@
+-- suppress CONTEXT so that function OIDs aren't in output
+\set VERBOSITY terse
+
+CREATE TABLE test1 (a int, b text);
+
+
+CREATE PROCEDURE transaction_test1()
+LANGUAGE pltcl
+AS $$
+for {set i 0} {$i < 10} {incr i} {
+    spi_exec "INSERT INTO test1 (a) VALUES ($i)"
+    if {$i % 2 == 0} {
+        commit
+    } else {
+        rollback
+    }
+}
+$$;
+
+CALL transaction_test1();
+
+SELECT * FROM test1;
+
+
+TRUNCATE test1;
+
+-- not allowed in a function
+CREATE FUNCTION transaction_test2() RETURNS int
+LANGUAGE pltcl
+AS $$
+for {set i 0} {$i < 10} {incr i} {
+    spi_exec "INSERT INTO test1 (a) VALUES ($i)"
+    if {$i % 2 == 0} {
+        commit
+    } else {
+        rollback
+    }
+}
+return 1
+$$;
+
+SELECT transaction_test2();
+
+SELECT * FROM test1;
+
+
+-- also not allowed if procedure is called from a function
+CREATE FUNCTION transaction_test3() RETURNS int
+LANGUAGE pltcl
+AS $$
+spi_exec "CALL transaction_test1()"
+return 1
+$$;
+
+SELECT transaction_test3();
+
+SELECT * FROM test1;
+
+
+-- commit inside cursor loop
+CREATE TABLE test2 (x int);
+INSERT INTO test2 VALUES (0), (1), (2), (3), (4);
+
+TRUNCATE test1;
+
+CREATE PROCEDURE transaction_test4a()
+LANGUAGE pltcl
+AS $$
+spi_exec -array row "SELECT * FROM test2 ORDER BY x" {
+    spi_exec "INSERT INTO test1 (a) VALUES ($row(x))"
+    commit
+}
+$$;
+
+CALL transaction_test4a();
+
+SELECT * FROM test1;
+
+
+-- rollback inside cursor loop
+TRUNCATE test1;
+
+CREATE PROCEDURE transaction_test4b()
+LANGUAGE pltcl
+AS $$
+spi_exec -array row "SELECT * FROM test2 ORDER BY x" {
+    spi_exec "INSERT INTO test1 (a) VALUES ($row(x))"
+    rollback
+}
+$$;
+
+CALL transaction_test4b();
+
+SELECT * FROM test1;
+
+
+DROP TABLE test1;
+DROP TABLE test2;