should be it

external/duckdb/test/sql/alter/rename_view/test_rename_view.test

@@ -0,0 +1,80 @@
+# name: test/sql/alter/rename_view/test_rename_view.test
+# description: Test RENAME VIEW single transaction
+# group: [rename_view]
+
+statement ok
+CREATE TABLE tbl(i INTEGER);
+INSERT INTO tbl VALUES (999), (100);
+CREATE VIEW vw AS SELECT * FROM tbl;
+
+statement ok
+BEGIN TRANSACTION
+
+statement ok
+ALTER VIEW vw RENAME TO vw2
+
+query I
+SELECT * FROM vw2
+----
+999
+100
+
+statement error
+SELECT * FROM vw
+----
+Catalog Error: Table with name vw does not exist
+
+statement ok
+ROLLBACK
+
+query I
+SELECT * FROM vw;
+----
+999
+100
+
+statement error
+SELECT * FROM vw2
+----
+Catalog Error: Table with name vw2 does not exist
+
+statement ok
+BEGIN TRANSACTION;
+
+statement ok
+ALTER VIEW vw RENAME TO vw2
+
+statement ok
+COMMIT
+
+query I
+SELECT * FROM vw2
+----
+999
+100
+
+statement error
+SELECT * FROM vw
+----
+Catalog Error: Table with name vw does not exist
+
+statement ok
+CREATE VIEW vw AS SELECT i+1 AS i FROM tbl
+
+query I
+SELECT * FROM vw
+----
+1000
+101
+
+# cannot rename a system view
+statement error
+ALTER VIEW sqlite_master RENAME TO my_sqlite_master
+----
+Binder Error: Can not comment on System Catalog entries
+
+# cannot rename a view that does not exist
+statement error
+ALTER VIEW nonexistingview RENAME TO my_new_view
+----
+Catalog Error: View with name nonexistingview does not exist

external/duckdb/test/sql/alter/rename_view/test_rename_view_incorrect.test

@@ -0,0 +1,24 @@
+# name: test/sql/alter/rename_view/test_rename_view_incorrect.test
+# description: Test RENAME VIEW: view does not exist and rename to an already existing view
+# group: [rename_view]
+
+statement ok
+CREATE TABLE tbl(i INTEGER)
+
+statement ok
+CREATE VIEW vw AS SELECT * FROM tbl
+
+statement ok
+CREATE VIEW vw2 AS SELECT 1729 AS i
+
+# Renaming a non existing view
+statement error
+ALTER VIEW non_view RENAME TO vw
+----
+<REGEX>:.*Catalog Error: View.*does not exist.*
+
+# rename to an already existing view
+statement error
+ALTER VIEW vw2 RENAME TO vw
+----
+Catalog Error: Could not rename

external/duckdb/test/sql/alter/rename_view/test_rename_view_many_transactions.test

@@ -0,0 +1,116 @@
+# name: test/sql/alter/rename_view/test_rename_view_many_transactions.test
+# description: Test RENAME VIEW four view renames and four parallel transactions
+# group: [rename_view]
+
+statement ok
+SET immediate_transaction_mode=true
+
+statement ok con1
+CREATE TABLE tbl1(i INTEGER)
+
+statement ok con1
+INSERT INTO tbl1 VALUES (999), (100)
+
+statement ok con1
+CREATE VIEW vw1 AS SELECT * FROM tbl1
+
+# rename chain
+# con2 starts a transaction now
+statement ok con2
+BEGIN TRANSACTION
+
+# rename in con1, con2 should still see "vw1"
+statement ok con1
+ALTER VIEW vw1 RENAME TO vw2
+
+# con3 starts a transaction now
+statement ok con3
+BEGIN TRANSACTION
+
+# rename in con1, con3 should still see "vw2"
+statement ok con1
+ALTER VIEW vw2 RENAME TO vw3
+
+# con4 starts a transaction now
+statement ok con4
+BEGIN TRANSACTION
+
+# rename in con1, con4 should still see "vw3"
+statement ok con1
+ALTER VIEW vw3 RENAME TO vw4
+
+# con2 sees ONLY vw1
+query I con2
+SELECT * FROM vw1
+----
+999
+100
+
+statement error con2
+SELECT * FROM vw2
+----
+
+statement error con2
+SELECT * FROM vw3
+----
+
+statement error con2
+SELECT * FROM vw4
+----
+
+# con3 sees ONLY vw2
+statement error con3
+SELECT * FROM vw1
+----
+
+query I con3
+SELECT * FROM vw2
+----
+999
+100
+
+statement error con3
+SELECT * FROM vw3
+----
+
+statement error con3
+SELECT * FROM vw4
+----
+
+# con4 sees ONLY vw3
+statement error con4
+SELECT * FROM vw1
+----
+
+statement error con4
+SELECT * FROM vw2
+----
+
+query I con4
+SELECT * FROM vw3
+----
+999
+100
+
+statement error con4
+SELECT * FROM vw4
+----
+
+# con1 sees ONLY vw4
+statement error con1
+SELECT * FROM vw1
+----
+
+statement error con1
+SELECT * FROM vw2
+----
+
+statement error con1
+SELECT * FROM vw3
+----
+
+query I con1
+SELECT * FROM vw4
+----
+999
+100

external/duckdb/test/sql/alter/rename_view/test_rename_view_table.test

@@ -0,0 +1,23 @@
+# name: test/sql/alter/rename_view/test_rename_view_table.test
+# description: Test RENAME VIEW with a table as entry
+# group: [rename_view]
+
+statement ok
+CREATE TABLE tbl(i INTEGER)
+
+statement ok
+INSERT INTO tbl VALUES (999), (100)
+
+statement ok
+CREATE VIEW v1 AS SELECT * FROM tbl
+
+statement error
+ALTER VIEW tbl RENAME TO tbl2
+----
+
+query I
+SELECT * FROM v1
+----
+999
+100
+

external/duckdb/test/sql/alter/rename_view/test_rename_view_transactions.test

@@ -0,0 +1,68 @@
+# name: test/sql/alter/rename_view/test_rename_view_transactions.test
+# description: Test RENAME VIEW two parallel transactions
+# group: [rename_view]
+
+statement ok con1
+CREATE TABLE tbl(i INTEGER)
+
+statement ok con1
+INSERT INTO tbl VALUES (999), (100)
+
+statement ok con1
+CREATE VIEW vw AS SELECT * FROM tbl
+
+statement ok con1
+BEGIN TRANSACTION
+
+statement ok con2
+BEGIN TRANSACTION
+
+statement ok con1
+ALTER VIEW vw RENAME TO vw2
+
+query I con1
+SELECT * FROM vw2
+----
+999
+100
+
+statement error con1
+SELECT * FROM vw
+----
+
+query I con2
+SELECT * FROM vw
+----
+999
+100
+
+statement error con2
+SELECT * FROM vw2
+----
+
+statement ok con1
+COMMIT
+
+statement ok con2
+COMMIT
+
+statement error con1
+SELECT * FROM vw
+----
+
+statement error con2
+SELECT * FROM vw
+----
+
+query I con1
+SELECT * FROM vw2
+----
+999
+100
+
+query I con2
+SELECT * FROM vw2
+----
+999
+100
+