• fixed NSString pointer reassignment in SPArrayAddition's method 'componentsJoinedAndBacktickQuoted'

• improved deletion of rows in tables which have no primary keys
- check for duplicated rows first; if no duplicates are found use all columns as 'primary keys' and delete the rows via … WHERE (a='…' AND b='…') OR (a='…' AND b='…') OR … 

1 files changed, 7 insertions, 3 deletions

diff --git a/Source/SPArrayAdditions.m b/Source/SPArrayAdditions.m
index bbc732af..c16616a5 100644
--- a/Source/SPArrayAdditions.m
+++ b/Source/SPArrayAdditions.m
@@ -33,11 +33,15 @@
  */
 - (NSString *)componentsJoinedAndBacktickQuoted;
 {
-	NSString *result = [NSString string];
+	NSMutableString *result = [NSMutableString string];
+	[result setString:@""];
+	
 	for (NSString *component in self)
 	{
-		if ([result length]) result = [result stringByAppendingString: @","];
-		result = [result stringByAppendingString: [component backtickQuotedString] ];
+		if ([result length])
+			[result appendString: @","];
+
+		[result appendString:[component backtickQuotedString]];
 	}
 	return result;
 }