1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/main/create_drop_trigger.test b/mysql-test/main/create_drop_trigger.test
new file mode 100644
index 00000000..0f19f5cf
--- /dev/null
+++ b/mysql-test/main/create_drop_trigger.test
@@ -0,0 +1,30 @@
+CREATE DATABASE db1;
+USE db1;
+CREATE TABLE t1 (val INT);
+CREATE TRIGGER IF NOT EXISTS val_sum BEFORE INSERT ON t1 FOR EACH ROW SET @sum = @sum + NEW.val;
+SET @sum=0;
+INSERT INTO t1 VALUES (10), (20), (30);
+SELECT @sum;
+
+CREATE TRIGGER IF NOT EXISTS val_sum_new BEFORE INSERT ON t1 FOR EACH ROW SET @sum = @sum + NEW.val;
+
+CREATE TRIGGER IF NOT EXISTS val_sum AFTER INSERT ON t1 FOR EACH ROW SET @sum = @sum + 1 + NEW.val;
+
+--error ER_WRONG_USAGE
+CREATE OR REPLACE TRIGGER IF NOT EXISTS val_sum BEFORE INSERT ON t1 FOR EACH ROW SET @sum = @sum + 2 + NEW.val;
+SELECT ACTION_STATEMENT FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME='val_sum';
+
+CREATE OR REPLACE TRIGGER val_sum BEFORE INSERT ON t1 FOR EACH ROW SET @sum = @sum + 3 + NEW.val;
+SELECT ACTION_STATEMENT FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME='val_sum';
+
+--error ER_TRG_ALREADY_EXISTS
+CREATE TRIGGER val_sum BEFORE INSERT ON t1 FOR EACH ROW SET @sum = @sum + 4 + NEW.val;
+SELECT ACTION_STATEMENT FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME='val_sum';
+
+--echo # Clearing up
+DROP TRIGGER IF EXISTS val_sum;
+SELECT ACTION_STATEMENT FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME='val_sum';
+DROP TRIGGER IF EXISTS val_sum;
+
+DROP TABLE t1;
+DROP DATABASE db1;