diff --git a/pkg/schema/pg/testdata/TestPostgres_AddColumn/with_timestamps.snap.txt b/pkg/schema/pg/testdata/TestPostgres_AddColumn/with_timestamps.snap.txt
new file mode 100644
index 0000000..02ab579
--- /dev/null
+++ b/pkg/schema/pg/testdata/TestPostgres_AddColumn/with_timestamps.snap.txt
@@ -0,0 +1,2 @@
+ALTER TABLE tst_pg_add_column_12.articles ADD "created_at" TIMESTAMP(6) DEFAULT now() NOT NULL
+ALTER TABLE tst_pg_add_column_12.articles ADD "updated_at" TIMESTAMP(6) DEFAULT now() NOT NULL
diff --git a/pkg/schema/pg/testdata/TestPostgres_ChangeColumn/change_column_type_with_using.snap.txt b/pkg/schema/pg/testdata/TestPostgres_ChangeColumn/change_column_type_with_using.snap.txt
new file mode 100644
index 0000000..82c27d4
--- /dev/null
+++ b/pkg/schema/pg/testdata/TestPostgres_ChangeColumn/change_column_type_with_using.snap.txt
@@ -0,0 +1 @@
+ALTER TABLE tst_pg_change_column_1.articles ALTER COLUMN name TYPE INTEGER USING length(name)
diff --git a/pkg/schema/pg/testdata/TestPostgres_ChangeColumn/simple_change.snap.txt b/pkg/schema/pg/testdata/TestPostgres_ChangeColumn/simple_change.snap.txt
new file mode 100644
index 0000000..51df605
--- /dev/null
+++ b/pkg/schema/pg/testdata/TestPostgres_ChangeColumn/simple_change.snap.txt
@@ -0,0 +1 @@
+ALTER TABLE tst_pg_change_column_0.articles ALTER COLUMN name TYPE varchar(255)
diff --git a/pkg/schema/pg/testdata/TestPostgres_RenameTable/rename_table.snap.txt b/pkg/schema/pg/testdata/TestPostgres_RenameTable/rename_table.snap.txt
new file mode 100644
index 0000000..6fb3ee2
--- /dev/null
+++ b/pkg/schema/pg/testdata/TestPostgres_RenameTable/rename_table.snap.txt
@@ -0,0 +1,4 @@
+CREATE TABLE tst_pg_rename_table_0.articles (
+"id" SERIAL NOT NULL PRIMARY KEY
+)
+ALTER TABLE tst_pg_rename_table_0.articles RENAME TO posts