1 files changed, 94 insertions, 0 deletions
diff --git a/test/windowD.test b/test/windowD.test
new file mode 100644
index 0000000..f2ec36a
--- /dev/null
+++ b/test/windowD.test
@@ -0,0 +1,94 @@
+# 2022 June 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowD
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t0(c0 TEXT);
+  CREATE VIEW v0(c0, c1) 
+    AS SELECT CUME_DIST() OVER (PARTITION BY t0.c0), TRUE FROM t0;
+  INSERT INTO t0 VALUES ('x');
+}
+
+do_execsql_test 1.1 {
+  SELECT ('500') IS (v0.c1) FROM v0;
+} {
+  0
+}
+
+do_execsql_test 1.2 {
+  SELECT (('500') IS (v0.c1)) FROM v0, t0;
+} {
+  0
+}
+
+do_execsql_test 1.2 {
+  SELECT (('500') IS (v0.c1)) IS FALSE FROM v0;
+} {
+  1
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM v0;
+} {
+  1.0 1
+}
+
+do_execsql_test 1.4 {
+  SELECT * FROM v0 WHERE ('500' IS v0.c1) IS FALSE;
+} {
+  1.0 1
+}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('value');
+  CREATE VIEW v1(a, b, c, d) AS SELECT 1, 2, TRUE, FALSE FROM t1;
+}
+
+do_execsql_test 2.1 {
+  SELECT 500 IS a, 500 IS b, 500 IS c, 500 IS d FROM v1
+} {0 0 0 0}
+
+do_execsql_test 2.2 {
+  SELECT * FROM v1 WHERE 500 IS c;
+} {}
+
+do_execsql_test 2.3 {
+  SELECT * FROM v1 WHERE 500 IS d;
+} {}
+
+do_execsql_test 2.4 {
+  CREATE VIEW v2 AS SELECT max(x) OVER () AS a, TRUE AS c FROM t1;
+}
+
+do_execsql_test 2.5 {
+  SELECT 500 IS c FROM v2;
+} 0
+
+do_execsql_test 2.6 {
+  SELECT * FROM v2 WHERE 500 IS c;
+} {}
+
+
+
+
+
+
+finish_test
+