From f8bac92548c213b1d76b1cf86a8fe9995deeeefc Mon Sep 17 00:00:00 2001
From: ValKmjolnir <lhk101lhk101@qq.com>
Date: Tue, 14 Mar 2023 00:16:54 +0800
Subject: [PATCH] :memo: update test file datalog.nas

---
 test/datalog.nas | 50 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/test/datalog.nas b/test/datalog.nas
index eecf86a..2c5560c 100644
--- a/test/datalog.nas
+++ b/test/datalog.nas
@@ -97,6 +97,52 @@ var select=func(n) {
     println(rightpad(str(cnt),7)," in ",ts.elapsedMSec()/1000," s");
 }
 
+var cartesian=func(n) {
+    # get(x, y, z, a, b) :- color(x, y, z), message(a, b).
+
+    var ts=maketimestamp();
+    var bar=process_bar.high_resolution_bar(40);
+
+    var color=[];
+    var message=[];
+    setsize(color,n);
+    setsize(message,n);
+
+    var last_step=0;
+    ts.stamp();
+    for(var i=0;i<n;i+=1) {
+        color[i]=[i,"color "~i,i+n*10];
+        message[i]=[i+n*10,"message "~i];
+        # generate process bar, every 0.2%
+        if((i-last_step)/n>1/500) {
+            last_step=i;
+            print(" ",bar.bar((i+1)/n)," ",leftpad(str(int((i+1)/n*100)),3),"% | \r");
+        }
+    }
+    print(" ",bar.bar(1)~" 100% | ",rightpad(str(ts.elapsedMSec()/1000),5)," s | ");
+
+    mess(color);
+    mess(message);
+
+    ts.stamp();
+
+    var res=[];
+    foreach(var c;color) {
+        foreach(var m;message) {
+            var tmp=[];
+            foreach(var k;c) {
+                append(tmp,k);
+            }
+            foreach(var k;m) {
+                append(tmp,k);
+            }
+            append(res,tmp);
+        }
+    }
+
+    println(rightpad(str(size(res)),7)," in ",ts.elapsedMSec()/1000," s");
+}
+
 println("project");
 for(var i=10;i<1e6;i*=10) {
     project(i);
@@ -104,4 +150,8 @@ for(var i=10;i<1e6;i*=10) {
 println("select");
 for(var i=10;i<1e6;i*=10) {
     select(i);
+}
+println("cartesian");
+for(var i=100;i<600;i+=100) {
+    cartesian(i);
 }
\ No newline at end of file