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4779af29 · Sergey Petrunya · d841ea23 · 4779af29
Commit 4779af29 authored Sep 02, 2009 by Sergey Petrunya
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sql/opt_range.h sql/opt_range.h +6 -0

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--- a/sql/opt_range.h
+++ b/sql/opt_range.h
@@ -38,6 +38,12 @@ typedef struct st_key_part {
 } KEY_PART;


+/*
+  A "MIN_TUPLE < tbl.key_tuple < MAX_TUPLE" interval. 
+  
+  One of endpoints may be absent. 'flags' member has flags which tell whether
+  the endpoints are '<' or '<='.
+*/
 class QUICK_RANGE :public Sql_alloc {
 public:
  uchar *min_key,*max_key;