Changeset: e13066250455 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/e13066250455
Added Files:
        sql/test/BugTracker-2026/Tests/7981-not-x-lt-x-bug.test
Modified Files:
        sql/test/BugTracker-2026/Tests/All
Branch: Dec2025
Log Message:

Add test for issue #7981


diffs (47 lines):

diff --git a/sql/test/BugTracker-2026/Tests/7981-not-x-lt-x-bug.test 
b/sql/test/BugTracker-2026/Tests/7981-not-x-lt-x-bug.test
new file mode 100644
--- /dev/null
+++ b/sql/test/BugTracker-2026/Tests/7981-not-x-lt-x-bug.test
@@ -0,0 +1,34 @@
+query T rowsort
+SELECT NOT (2 < 2)
+----
+True
+
+statement ok
+CREATE TABLE t7981(x INT)
+
+statement ok
+INSERT INTO t7981 VALUES (2)
+
+query ITT rowsort
+SELECT x,
+  NOT (x < x) AS actual_not_x_lt_x,
+  TRUE AS expected
+FROM t7981
+----
+2
+True
+True
+
+query ITT rowsort
+SELECT x,
+  NOT (x < x) AS actual_not_x_lt_x,
+      (x < x) AS actual_x_lt_x
+FROM t7981
+----
+2
+True
+False
+
+statement ok
+DROP TABLE IF EXISTS t7981
+
diff --git a/sql/test/BugTracker-2026/Tests/All 
b/sql/test/BugTracker-2026/Tests/All
--- a/sql/test/BugTracker-2026/Tests/All
+++ b/sql/test/BugTracker-2026/Tests/All
@@ -162,3 +162,4 @@ KNOWNFAIL?7974-muli-column-not-in-subque
 7978-name-leak-prepare-error-recompile
 7979-prepare-error-exec-113
 KNOWNFAIL?7980-lag-offset-ignored-bug
+KNOWNFAIL?7981-not-x-lt-x-bug
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