From 09cbe7724e2dd6845086232edc5426851bc81e1a Mon Sep 17 00:00:00 2001
From: Gavin Halliday <gavin.halliday@lexisnexis.com>
Date: Wed, 20 Mar 2024 14:46:18 +0000
Subject: [PATCH] HPCC-31505 Add regression test for index read with
 continuation

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
---
 testing/regress/ecl/indexmerge.ecl     | 40 ++++++++++++++++++++++++++
 testing/regress/ecl/key/indexmerge.xml |  3 ++
 2 files changed, 43 insertions(+)
 create mode 100644 testing/regress/ecl/indexmerge.ecl
 create mode 100644 testing/regress/ecl/key/indexmerge.xml

diff --git a/testing/regress/ecl/indexmerge.ecl b/testing/regress/ecl/indexmerge.ecl
new file mode 100644
index 00000000000..e089e4c95a5
--- /dev/null
+++ b/testing/regress/ecl/indexmerge.ecl
@@ -0,0 +1,40 @@
+/*##############################################################################
+
+    HPCC SYSTEMS software Copyright (C) 2024 HPCC Systems®.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+############################################################################## */
+
+//class=file
+//class=index
+//version multiPart=false
+//version multiPart=true
+
+import ^ as root;
+multiPart := #IFDEFINED(root.multiPart, true);
+useLocal := #IFDEFINED(root.useLocal, false);
+useTranslation := #IFDEFINED(root.useTranslation, false);
+
+//--- end of version configuration ---
+
+import $.setup;
+import setup.TS;
+Files := setup.Files(multiPart, useLocal, useTranslation);
+
+//Read from an index, merging from a large number of cursor positions to generate a sorted output
+
+TS_searchIndex := Files.getSearchIndex();
+filtered := TS_searchIndex(KEYED(kind=1 AND word[1]='a'));
+withOrder := STEPPED(filtered, doc, PRIORITY(3),HINT(maxseeklookahead(50)));
+
+OUTPUT(COUNT(NOFOLD(withOrder)) = 305475);
diff --git a/testing/regress/ecl/key/indexmerge.xml b/testing/regress/ecl/key/indexmerge.xml
new file mode 100644
index 00000000000..44a8709ad35
--- /dev/null
+++ b/testing/regress/ecl/key/indexmerge.xml
@@ -0,0 +1,3 @@
+<Dataset name='Result 1'>
+ <Row><Result_1>true</Result_1></Row>
+</Dataset>