change item table index

.gitignore

@@ -1,5 +1,7 @@
 /_output
 /yarr
 *.db
+*.db-shm
+*.db-wal
 *.syso
 versioninfo.rc

src/storage/migration.go

@@ -16,13 +16,16 @@ var migrations = []func(*sql.Tx) error{
 	m06_fill_missing_dates,
 	m07_add_feed_size,
 	m08_normalize_datetime,
+    m09_change_item_index,
 }
 
 var maxVersion = int64(len(migrations))
 
 func migrate(db *sql.DB) error {
 	var version int64
-	db.QueryRow("pragma user_version").Scan(&version)
+    if err := db.QueryRow("pragma user_version").Scan(&version); err != nil {
+        return err
+    }
 
 	if version >= maxVersion {
 		return nil
@@ -294,3 +297,12 @@ func m08_normalize_datetime(tx *sql.Tx) error {
 	_, err = tx.Exec(`update items set date = strftime('%Y-%m-%d %H:%M:%f', date);`)
 	return err
 }
+
+func m09_change_item_index(tx *sql.Tx) error {
+	sql := `
+        drop index if exists idx_item_status;
+		create index if not exists idx_item__date_id_status on items(date,id,status);
+	`
+	_, err := tx.Exec(sql)
+	return err
+}

src/storage/storage.go

@@ -2,6 +2,9 @@ package storage
 
 import (
 	"database/sql"
+	"log"
+	"strings"
+
 	_ "github.com/mattn/go-sqlite3"
 )
 
@@ -10,14 +13,17 @@ type Storage struct {
 }
 
 func New(path string) (*Storage, error) {
+	if pos := strings.IndexRune(path, '?'); pos == -1 {
+        params := "_journal=WAL&_sync=NORMAL&_busy_timeout=5000&cache=shared"
+        log.Printf("opening db with params: %s", params)
+        path = path + "?" + params
+    }
+
 	db, err := sql.Open("sqlite3", path)
 	if err != nil {
 		return nil, err
 	}
 
-	// TODO: https://foxcpp.dev/articles/the-right-way-to-use-go-sqlite3
-	db.SetMaxOpenConns(1)
-
 	if err = migrate(db); err != nil {
 		return nil, err
 	}