MonetDB: pp_hashjoin - reuse func res and add info to assert

[Ying Zhang via checkin-list]

Changeset: 72fef30dd5d6 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/72fef30dd5d6
Modified Files:
        sql/backends/monet5/rel_pphash.c
Branch: pp_hashjoin
Log Message:

reuse func res and add info to assert


diffs (27 lines):

diff --git a/sql/backends/monet5/rel_pphash.c b/sql/backends/monet5/rel_pphash.c
--- a/sql/backends/monet5/rel_pphash.c
+++ b/sql/backends/monet5/rel_pphash.c
@@ -767,10 +767,11 @@ rel2bin_oahash_groupjoin(backend *be, sq
 
        if (list_length(rel->attr) == 1) {
         sql_exp *e = rel->attr->h->data;
-        if (exp_is_atom(e))
+        if (exp_is_atom(e)) {
             mark = true;
-        if (exp_is_atom(e) && exp_is_false(e))
-            exist = false;
+               if (exp_is_false(e))
+               exist = false;
+               }
     }
 
        int neededpp = (rel->spb || rel->partition) && get_need_pipeline(be);
@@ -833,7 +834,7 @@ rel2bin_oahash_groupjoin(backend *be, sq
                        stmt *s = stmt_alias(be, prb_mrk, e->alias.label, rnme, 
nme);
                        append(sub->op4.lval, s);
                } else {
-                       assert(0);
+                       assert(0 && "general groupjoin not implemented yet");
                }
        }
        return sub;
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