renamed exaples to playground, edited README

playground/qry_update_test.go

@@ -0,0 +1,66 @@
+package playground
+
+import (
+	"testing"
+
+	"code.patial.tech/go/pgm"
+	"code.patial.tech/go/pgm/playground/db"
+	"code.patial.tech/go/pgm/playground/db/user"
+)
+
+func TestUpdateQuery(t *testing.T) {
+	got := db.User.Update().
+		Set(user.FirstName, "ankit").
+		Set(user.MiddleName, "singh").
+		Set(user.LastName, "patial").
+		Where(
+			user.Email.Eq("aa@aa.com"),
+		).
+		Where(
+			user.StatusID.NEq(1),
+		).
+		String()
+
+	expected := "UPDATE users SET first_name=$1, middle_name=$2, last_name=$3 WHERE users.email = $4 AND users.status_id != $5"
+	if got != expected {
+		t.Errorf("\nexpected: %q\ngot: %q", expected, got)
+	}
+}
+
+func TestUpdateSetMap(t *testing.T) {
+	got := db.User.Update().
+		SetMap(map[pgm.Field]any{
+			user.FirstName:  "ankit",
+			user.MiddleName: "singh",
+			user.LastName:   "patial",
+		}).
+		Where(
+			user.Email.Eq("aa@aa.com"),
+		).
+		Where(
+			user.StatusID.NEq(1),
+		).
+		String()
+
+	expected := "UPDATE users SET first_name=$1, middle_name=$2, last_name=$3 WHERE users.email = $4 AND users.status_id != $5"
+	if got != expected {
+		t.Errorf("\nexpected: %q\ngot: %q", expected, got)
+	}
+}
+
+// BenchmarkUpdateQuery-12    	 2004985	       592.2 ns/op	    1176 B/op	      20 allocs/op
+func BenchmarkUpdateQuery(b *testing.B) {
+	for b.Loop() {
+		_ = db.User.Update().
+			Set(user.FirstName, "ankit").
+			Set(user.MiddleName, "singh").
+			Set(user.LastName, "patial").
+			Where(
+				user.Email.Eq("aa@aa.com"),
+			).
+			Where(
+				user.StatusID.NEq(1),
+			).
+			String()
+	}
+}