From 61f7f717f78cd0742c2d10fb0d0c871cc5c202e3 Mon Sep 17 00:00:00 2001
From: Liang Ding <d@b3log.org>
Date: Tue, 23 Aug 2022 10:06:58 +0800
Subject: [PATCH] =?UTF-8?q?:art:=20=E6=95=B0=E6=8D=AE=E5=8E=86=E5=8F=B2?=
 =?UTF-8?q?=E6=96=87=E6=A1=A3=E5=92=8C=E8=B5=84=E6=BA=90=E6=96=87=E4=BB=B6?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81=E5=88=86=E9=A1=B5=E5=92=8C=E6=90=9C=E7=B4=A2?=
 =?UTF-8?q?=20https://github.com/siyuan-note/siyuan/issues/4901?=
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---
 kernel/sql/database.go        | 32 +++++++++++++++++++++++++++++++-
 kernel/util/working.go        |  2 ++
 kernel/util/working_mobile.go |  1 +
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/kernel/sql/database.go b/kernel/sql/database.go
index 6e4616055..2d8d6e18c 100644
--- a/kernel/sql/database.go
+++ b/kernel/sql/database.go
@@ -38,7 +38,10 @@ import (
 	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
-var db *sql.DB
+var (
+	db        *sql.DB
+	historyDB *sql.DB
+)
 
 func init() {
 	regex := func(re, s string) (bool, error) {
@@ -141,6 +144,12 @@ func initDBTables() {
 	if nil != err {
 		logging.LogFatalf("create table [refs] failed: %s", err)
 	}
+
+	historyDB.Exec("DROP TABLE history_fts_case_insensitive")
+	_, err = db.Exec("CREATE VIRTUAL TABLE history_fts_case_insensitive USING fts5(type UNINDEXED, op UNINDEXED, title, content, created UNINDEXED, path UNINDEXED, tokenize=\"siyuan case_insensitive\")")
+	if nil != err {
+		logging.LogFatalf("create table [history_fts_case_insensitive] failed: %s", err)
+	}
 }
 
 func IndexMode() {
@@ -192,6 +201,27 @@ func initDBConnection() {
 	db.SetMaxIdleConns(20)
 	db.SetMaxOpenConns(20)
 	db.SetConnMaxLifetime(365 * 24 * time.Hour)
+
+	if nil != historyDB {
+		historyDB.Close()
+	}
+	dsn = util.HistoryDBPath + "?_journal_mode=OFF" +
+		"&_synchronous=OFF" +
+		"&_secure_delete=OFF" +
+		"&_cache_size=-20480" +
+		"&_page_size=8192" +
+		"&_busy_timeout=7000" +
+		"&_ignore_check_constraints=ON" +
+		"&_temp_store=MEMORY" +
+		"&_case_sensitive_like=OFF" +
+		"&_locking_mode=EXCLUSIVE"
+	historyDB, err = sql.Open("sqlite3_extended", dsn)
+	if nil != err {
+		logging.LogFatalf("create database failed: %s", err)
+	}
+	historyDB.SetMaxIdleConns(1)
+	historyDB.SetMaxOpenConns(1)
+	historyDB.SetConnMaxLifetime(365 * 24 * time.Hour)
 }
 
 func SetCaseSensitive(b bool) {
diff --git a/kernel/util/working.go b/kernel/util/working.go
index 1c66e5aae..fe1c9a670 100644
--- a/kernel/util/working.go
+++ b/kernel/util/working.go
@@ -168,6 +168,7 @@ var (
 	LogPath        string        // 配置目录下的日志文件 siyuan.log 路径
 	DBName         = "siyuan.db" // SQLite 数据库文件名
 	DBPath         string        // SQLite 数据库文件路径
+	HistoryDBPath  string        // SQLite 历史数据库文件路径
 	BlockTreePath  string        // 区块树文件路径
 	AppearancePath string        // 配置目录下的外观目录 appearance/ 路径
 	ThemesPath     string        // 配置目录下的外观目录下的 themes/ 路径
@@ -271,6 +272,7 @@ func initWorkspaceDir(workspaceArg string) {
 	os.Setenv("TEMP", osTmpDir)
 	os.Setenv("TMP", osTmpDir)
 	DBPath = filepath.Join(TempDir, DBName)
+	HistoryDBPath = filepath.Join(TempDir, "history.db")
 	BlockTreePath = filepath.Join(TempDir, "blocktree.msgpack")
 }
 
diff --git a/kernel/util/working_mobile.go b/kernel/util/working_mobile.go
index caf753912..e3beefc9b 100644
--- a/kernel/util/working_mobile.go
+++ b/kernel/util/working_mobile.go
@@ -51,6 +51,7 @@ func BootMobile(container, appDir, workspaceDir, nativeLibDir, privateDataDir, l
 	os.RemoveAll(filepath.Join(TempDir, "repo"))
 	os.Setenv("TMPDIR", osTmpDir)
 	DBPath = filepath.Join(TempDir, DBName)
+	HistoryDBPath = filepath.Join(TempDir, "history.db")
 	BlockTreePath = filepath.Join(TempDir, "blocktree.msgpack")
 	AndroidNativeLibDir = nativeLibDir
 	AndroidPrivateDataDir = privateDataDir