Changeset: 297153d76d39 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=297153d76d39
Modified Files:
sql/backends/monet5/sql_optimizer.c
Branch: default
Log Message:
No volcano optimizer with 1 thread
diffs (12 lines):
diff --git a/sql/backends/monet5/sql_optimizer.c
b/sql/backends/monet5/sql_optimizer.c
--- a/sql/backends/monet5/sql_optimizer.c
+++ b/sql/backends/monet5/sql_optimizer.c
@@ -191,7 +191,7 @@ addOptimizers(Client c, MalBlkPtr mb, ch
space = SQLgetStatistics(c, be->mvc, mb);
if(space && (pipe == NULL || strcmp(pipe,"default_pipe")== 0)){
- if( space > (lng)(0.8 * MT_npages() * MT_pagesize()) ){
+ if( space > (lng)(0.8 * MT_npages() * MT_pagesize()) &&
GDKnr_threads > 1){
pipe = "volcano_pipe";
//mnstr_printf(GDKout, "#use volcano optimizer
pipeline? "SZFMT"\n", space);
}else
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