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unittest/sql/optimizer/test_optimizer_merge.sql

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+
+######### normal test ###############
+## test for update clause
+merge into targetTable using sourceTable on (targetTable.id = sourceTable.id) when matched then update set targetTable.sales = sourceTable.sales;
+
+## test for insert clause
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id) when not matched then insert(t1.id, t1.sales) values(t2.id, t2.sales);
+
+######### test condition ###############
+## test for match condition
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id and t1.id != t2.sales) when matched then update set t1.sales = t2.sales;
+
+## test for update condition
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id and t1.id != t2.sales) when matched then update set t1.sales = t2.sales where t1.sales > 1;
+
+## test for delete condition
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id and t1.id != t2.sales) when matched then update set t1.sales = t2.sales where t1.sales > 88 delete where t1.id < 99;
+
+## test for insert condition
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id) when not matched then insert(t1.id, t1.sales) values(t2.id, t2.sales) where t2.id > 0;
+
+## test for full condition
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id) when matched then update set t1.sales = t2.sales where t1.id = 999 delete where t1.sales =888 when not matched then insert(t1.id, t1.sales) values(t2.id, t2.sales) where t2.id = 777;
+
+######### test for column conv ###############
+
+### test update column conv #####
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id and t1.id != t2.sales) when matched then update set t1.sales = 1;
+
+### test insert column conv ######
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id) when not matched then insert(t1.id, t1.sales) values(1, 1);
+merge into targetTable t1 using sourceTable t2 on (t1.id = t2.id) when not matched then insert(t1.id) values(t2.id);
+
+######### test for hidden rowkey ###############
+merge into target1 using sourceTable on (target1.id = sourceTable.id) when matched then update set target1.c2 = sourceTable.sales;
+merge into target2 using sourceTable on (target2.id = sourceTable.id) when matched then update set target2.c2 = sourceTable.sales;
+
+################## test for subquery  ##################
+merge into targetTable t1 using (select * from sourceTable) t2 on (t1.id = t2.id) when matched then update set t1.sales = t2.sales where t1.id = 999 delete where t1.sales =888 when not matched then insert(t1.id, t1.sales) values(t2.id, t2.sales) where t2.id = 777;