MonetDB: default - Use memcpy in BATappend when we can.

[Sjoerd Mullender]

Changeset: bf3229c5eed1 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=bf3229c5eed1
Modified Files:
        gdk/gdk_batop.c
Branch: default
Log Message:

Use memcpy in BATappend when we can.


diffs (28 lines):

diff --git a/gdk/gdk_batop.c b/gdk/gdk_batop.c
--- a/gdk/gdk_batop.c
+++ b/gdk/gdk_batop.c
@@ -580,11 +580,20 @@ BATappend(BAT *b, BAT *n, bit force)
                        if (b == NULL)
                                return NULL;
                } else if (b->htype == TYPE_void) {
-                       BATiter ni = bat_iterator(n);
+                       if (!ATOMvarsized(b->ttype) &&
+                           BATatoms[b->ttype].atomFix == NULL) {
+                               /* use fast memcpy if we can */
+                               memcpy(Tloc(b, BUNlast(b)),
+                                      Tloc(n, BUNfirst(n)),
+                                      BATcount(n) * Tsize(n));
+                               BATsetcount(b, BATcount(b) + BATcount(n));
+                       } else {
+                               BATiter ni = bat_iterator(n);
 
-                       BATloop(n, p, q) {
-                               bunfastins_nocheck(b, r, NULL, BUNtail(ni, p), 
0, Tsize(b));
-                               r++;
+                               BATloop(n, p, q) {
+                                       bunfastins_nocheck(b, r, NULL, 
BUNtail(ni, p), 0, Tsize(b));
+                                       r++;
+                               }
                        }
                        if (b->hseqbase != oid_nil)
                                b->hrevsorted = 0;
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