Changeset: fbe5506500dc for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=fbe5506500dc
Modified Files:
sql/backends/monet5/sql_statement.c
Branch: default
Log Message:
small optimization of stmt_project
diffs (12 lines):
diff --git a/sql/backends/monet5/sql_statement.c
b/sql/backends/monet5/sql_statement.c
--- a/sql/backends/monet5/sql_statement.c
+++ b/sql/backends/monet5/sql_statement.c
@@ -2173,6 +2173,8 @@ stmt_project_join(backend *be, stmt *op1
stmt *
stmt_project(backend *be, stmt *op1, stmt *op2)
{
+ if (!op2->nrcols)
+ return stmt_const(be, op1, op2);
InstrPtr q = stmt_project_join(be, op1, op2, NULL);
if (q) {
stmt *s = stmt_create(be->mvc->sa, st_join);
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