From 4fe70a2cc521c8da55599c978311701e70d2aec2 Mon Sep 17 00:00:00 2001
From: Jinzhu <zhangjinzhu@bytedance.com>
Date: Fri, 11 Sep 2020 11:50:13 +0800
Subject: [PATCH] Allow negative number for limit

---
 sqlite.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sqlite.go b/sqlite.go
index 41b41e6..05a466a 100644
--- a/sqlite.go
+++ b/sqlite.go
@@ -2,6 +2,7 @@ package sqlite
 
 import (
 	"database/sql"
+	"strconv"
 	"strings"
 
 	_ "github.com/mattn/go-sqlite3"
@@ -61,6 +62,21 @@ func (dialector Dialector) ClauseBuilders() map[string]clause.ClauseBuilder {
 
 			c.Build(builder)
 		},
+		"LIMIT": func(c clause.Clause, builder clause.Builder) {
+			if limit, ok := c.Expression.(clause.Limit); ok {
+				if limit.Limit > 0 {
+					builder.WriteString("LIMIT ")
+					builder.WriteString(strconv.Itoa(limit.Limit))
+				}
+				if limit.Offset > 0 {
+					if limit.Limit > 0 {
+						builder.WriteString(" ")
+					}
+					builder.WriteString("OFFSET ")
+					builder.WriteString(strconv.Itoa(limit.Offset))
+				}
+			}
+		},
 	}
 }