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| author | Varun Gupta <varun.gupta@mariadb.com> | 2019-04-24 00:16:56 +0530 |
|---|---|---|
| committer | Varun Gupta <varun.gupta@mariadb.com> | 2019-04-24 12:58:04 +0530 |
| commit | 1f1a61cfc41a01ffa65d568eebdc037a54b5c463 (patch) | |
| tree | 302a4d84cbc058f67c9f4d6a40a75356bd615fa2 /mysql-test | |
| parent | 5fc8dd8b82e995b3c685f4e71700201097431358 (diff) | |
| download | mariadb-git-1f1a61cfc41a01ffa65d568eebdc037a54b5c463.tar.gz | |
MDEV-15837: Assertion `item1->type() == Item::FIELD_ITEM && item2->type() == Item::FIELD_ITEM'
failed in compare_order_elements function
The issue here is the function compare_order_lists() is called for the order by list of the window functions
so that those window function that can be computed together are adjacent.
So in the function compare_order_list we iterate over all the elements in the order list of the two functions and
compare the items in their order by clause.
The function compare_order_elements() is called for each item in the
order by clause. This function assumes that all the items that are in the order by list would be of the type
Item::FIELD_ITEM.
The case we have is that we have constants in the order by clause. We should ignore the constant and only compare
items of the type Item::FIELD_ITEM in compare_order_elements()
Diffstat (limited to 'mysql-test')
| -rw-r--r-- | mysql-test/r/win.result | 12 | ||||
| -rw-r--r-- | mysql-test/t/win.test | 10 |
2 files changed, 22 insertions, 0 deletions
diff --git a/mysql-test/r/win.result b/mysql-test/r/win.result index 083b5dfd16d..0ddffc551dc 100644 --- a/mysql-test/r/win.result +++ b/mysql-test/r/win.result @@ -3506,5 +3506,17 @@ id a b sum_a_b 2 2 2 4 drop table t1; # +# MDEV-15837: Assertion `item1->type() == Item::FIELD_ITEM && item2->type() == Item::FIELD_ITEM' +# failed in compare_order_elements function +# +CREATE TABLE t1 (a1 int); +insert into t1 values (1),(2),(3); +SELECT rank() OVER (ORDER BY 1), ROW_NUMBER() OVER (ORDER BY (EXPORT_SET(5,'Y','N',',',4))) FROM t1; +rank() OVER (ORDER BY 1) ROW_NUMBER() OVER (ORDER BY (EXPORT_SET(5,'Y','N',',',4))) +1 1 +1 2 +1 3 +drop table t1; +# # End of 10.2 tests # diff --git a/mysql-test/t/win.test b/mysql-test/t/win.test index 0f02b1414a0..fd31e9d4bd9 100644 --- a/mysql-test/t/win.test +++ b/mysql-test/t/win.test @@ -2256,5 +2256,15 @@ from t1 e; drop table t1; --echo # +--echo # MDEV-15837: Assertion `item1->type() == Item::FIELD_ITEM && item2->type() == Item::FIELD_ITEM' +--echo # failed in compare_order_elements function +--echo # + +CREATE TABLE t1 (a1 int); +insert into t1 values (1),(2),(3); +SELECT rank() OVER (ORDER BY 1), ROW_NUMBER() OVER (ORDER BY (EXPORT_SET(5,'Y','N',',',4))) FROM t1; +drop table t1; + +--echo # --echo # End of 10.2 tests --echo # |