From a813fe14ea3eb5c974173ba5a2f882d6cc345cd8 Mon Sep 17 00:00:00 2001
From: Andrew Lamb <andrew@nerdnetworks.org>
Date: Mon, 4 Nov 2024 15:37:47 -0500
Subject: [PATCH] Use `|` for consistency

---
 datafusion/sqllogictest/README.md                | 14 +++++++-------
 datafusion/sqllogictest/test_files/functions.slt | 12 ++++++++----
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/datafusion/sqllogictest/README.md b/datafusion/sqllogictest/README.md
index 7a9c53ad0b4e..885e92fee270 100644
--- a/datafusion/sqllogictest/README.md
+++ b/datafusion/sqllogictest/README.md
@@ -118,21 +118,21 @@ Andrew
 ```
 
 To test trailing whitespace, project additional non-whitespace column on the
-right. For example, by selecting `'XX'` after the column of interest, the test
+right. For example, by selecting `'|'` after the column of interest, the test
 can distinguish between `Andrew` and `Andrew `:
 
 ```text
-#  Note two spaces between `Andrew` and `XX`
+# Note two spaces between `Andrew` and `|`
 query TT
-select substr('Andrew Lamb', 1, 7), 'XX';
+select substr('Andrew Lamb', 1, 7), '|'
 ----
-Andrew  XX
+Andrew  |
 
-# Note only one space between `Andrew` and `XX`
+# Note only one space between `Andrew` and `|`
 query TT
-select substr('Andrew Lamb', 1, 6), 'XX';
+select substr('Andrew Lamb', 1, 6), '|'
 ----
-Andrew XX
+Andrew |
 ```
 
 # Reference
diff --git a/datafusion/sqllogictest/test_files/functions.slt b/datafusion/sqllogictest/test_files/functions.slt
index 5bc3d2b6b220..a7568d88f797 100644
--- a/datafusion/sqllogictest/test_files/functions.slt
+++ b/datafusion/sqllogictest/test_files/functions.slt
@@ -738,17 +738,21 @@ true
 
 
 ## Demonstrate how to test for trailing whitespace
+
+# Note no trailing whitespace
 query T
 select substr('Andrew Lamb', 1, 7)
 ----
 Andrew
 
+# Note two spaces between `Andrew` and `|`
 query TT
-select substr('Andrew Lamb', 1, 7), 'XX'
+select substr('Andrew Lamb', 1, 7), '|'
 ----
-Andrew  XX
+Andrew  |
 
+# Note only one space between `Andrew` and `|`
 query TT
-select substr('Andrew Lamb', 1, 6), 'XX'
+select substr('Andrew Lamb', 1, 6), '|'
 ----
-Andrew XX
+Andrew |