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-rw-r--r--contrib/spi/insert_username.example20
1 files changed, 20 insertions, 0 deletions
diff --git a/contrib/spi/insert_username.example b/contrib/spi/insert_username.example
new file mode 100644
index 0000000..2c1eeb0
--- /dev/null
+++ b/contrib/spi/insert_username.example
@@ -0,0 +1,20 @@
+DROP TABLE username_test;
+
+CREATE TABLE username_test (
+ name text,
+ username text not null
+);
+
+CREATE TRIGGER insert_usernames
+ BEFORE INSERT OR UPDATE ON username_test
+ FOR EACH ROW
+ EXECUTE PROCEDURE insert_username (username);
+
+INSERT INTO username_test VALUES ('nothing');
+INSERT INTO username_test VALUES ('null', null);
+INSERT INTO username_test VALUES ('empty string', '');
+INSERT INTO username_test VALUES ('space', ' ');
+INSERT INTO username_test VALUES ('tab', ' ');
+INSERT INTO username_test VALUES ('name', 'name');
+
+SELECT * FROM username_test;