Changeset: 20123d56e802 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=20123d56e802
Modified Files:
sql/backends/monet5/rel_bin.c
Branch: pushdown
Log Message:
make sure we handle single value projections again
diffs (16 lines):
diff --git a/sql/backends/monet5/rel_bin.c b/sql/backends/monet5/rel_bin.c
--- a/sql/backends/monet5/rel_bin.c
+++ b/sql/backends/monet5/rel_bin.c
@@ -317,7 +317,11 @@ subrel_project( backend *be, stmt *s)
if (c->type != st_alias) {
c = stmt_project(be, cand, c);
} else { /* st_alias */
- stmt *s = stmt_project(be, cand, c->op1);
+ stmt *s = c->op1;
+ if (s->nrcols == 0)
+ s = stmt_const(be, cand, s);
+ else
+ s = stmt_project(be, cand, s);
c = stmt_alias(be, s, c->tname, c->cname);
}
append(l, c);
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