From 05d1b373d591389fad7e0c3becfc372e7f6f1167 Mon Sep 17 00:00:00 2001
From: Nyall Dawson <nyall.dawson@gmail.com>
Date: Fri, 20 Aug 2021 11:21:46 +1000
Subject: [PATCH] [odbc] Format boolean values correctly as SQL_C_CHAR (#327)

When a boolean column value is requested as a SQL_C_CHAR value,
correctly return a "1" or "0" string value
---
 src/odbc/odbc.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/odbc/odbc.c b/src/odbc/odbc.c
index a3b5276..050e9cf 100644
--- a/src/odbc/odbc.c
+++ b/src/odbc/odbc.c
@@ -1465,9 +1465,19 @@ SQLRETURN SQL_API SQLGetData(
 
 	if (col->col_type == MDB_BOOL) {
 		// bool cannot be null
-		*(BOOL*)rgbValue = col->cur_value_len ? 0 : 1;
-		if (pcbValue)
-			*pcbValue = 1;
+		if (fCType == SQL_C_CHAR) {
+			if ( col->cur_value_len )
+				((char *)rgbValue)[0] = '0';
+			else
+				((char *)rgbValue)[0] = '1';
+			((char *)rgbValue)[1] = '\0';
+			if (pcbValue)
+				*pcbValue = sizeof(SQLCHAR);
+		} else {
+			*(BOOL*)rgbValue = col->cur_value_len ? 0 : 1;
+			if (pcbValue)
+				*pcbValue = 1;
+	        }
 		return SQL_SUCCESS;
 	}
 	if (col->cur_value_len == 0) {