- Identified and corrected a major n^2 bottleneck in working with all query result sets - when iterating through a mysql result set, all the data up to each row was seeked through again. With this fixed SP can work with very large result sets at much, much higher speeds.

 - Fixed incorrect query splitting in splitQueries - improves custom queries and imports.
 - CSV export now exports NULLs as an empty cell (eg "1,,3").  This resolved Issue #67.  Correspondingly, CSV import now also accepts this syntax.
 - CSV and SQL exports no longer quote numeric values for file size and neatness improvements.
 - Multi-table exports now show progress through the tables in the text description, and use the progress bar for export of each table, for improved feedback.
 - The old "Export Table Content" menu has been split into two - "Current Browse View" which matches the old behaviour, and a new "Current Table" entry.  This addresses Issue #97.
 - Exports now write data to a file stream as data is processed for export, and also parse data from the database as a stream where possible.  This leads to lower memory usage, speed improvements, and much more accurate and constant feedback.
 - The export processes have been restructured and rewritten for further speed and memory improvements.
 - SQL exports now correctly export BLOB and TEXT contents ready for re-import into all systems.
 - SQL exports now group multiple VALUES for each INSERT INTO command for much, much faster imports of exported data.

1 files changed, 1 insertions, 1 deletions

diff --git a/TableSource.m b/TableSource.m
index f8d3a446..58c5fb34 100644
--- a/TableSource.m
+++ b/TableSource.m
@@ -522,8 +522,8 @@ fetches the result as an array with a dictionary for each row in it
 	id key;
 	int i;
 
+	if ([theResult numOfRows]) [theResult dataSeek:0];
 	for ( i = 0 ; i < [theResult numOfRows] ; i++ ) {
-		[theResult dataSeek:i];
 		tempRow = [NSMutableDictionary dictionaryWithDictionary:[theResult fetchRowAsDictionary]];
 
 		//use NULL string from preferences instead of the NSNull oject returned by the framework