MonetDB: Oct2020 - Check for nil when searching in candidate lis...

[Sjoerd Mullender]

Changeset: 037d0d1a4356 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=037d0d1a4356
Modified Files:
        gdk/gdk_search.c
Branch: Oct2020
Log Message:

Check for nil when searching in candidate list with exceptions.
This fixes the assertion in sqlancer05.


diffs (12 lines):

diff --git a/gdk/gdk_search.c b/gdk/gdk_search.c
--- a/gdk/gdk_search.c
+++ b/gdk/gdk_search.c
@@ -470,6 +470,8 @@ SORTfndlast(BAT *b, const void *v)
        if (b->ttype == TYPE_void) {
                if (b->tvheap) {
                        struct canditer ci;
+                       if (is_oid_nil(*(const oid*)v))
+                               return 0;
                        canditer_init(&ci, NULL, b);
                        return canditer_search(&ci, *(const oid*)v + 1, true);
                }
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