Use IndexHint for mysql on action to improvement performance

Author: lunny

go.mod

@@ -121,7 +121,7 @@ require (
 	mvdan.cc/xurls/v2 v2.5.0
 	strk.kbt.io/projects/go/libravatar v0.0.0-20191008002943-06d1c002b251
 	xorm.io/builder v0.3.13
-	xorm.io/xorm v1.3.5
+	xorm.io/xorm v1.3.5-0.20231219045404-7ae7474bcbf6
 )
 
 require (

go.sum

@@ -1510,5 +1510,5 @@ strk.kbt.io/projects/go/libravatar v0.0.0-20191008002943-06d1c002b251/go.mod h1:
 xorm.io/builder v0.3.11-0.20220531020008-1bd24a7dc978/go.mod h1:aUW0S9eb9VCaPohFCH3j7czOx1PMW3i1HrSzbLYGBSE=
 xorm.io/builder v0.3.13 h1:a3jmiVVL19psGeXx8GIurTp7p0IIgqeDmwhcR6BAOAo=
 xorm.io/builder v0.3.13/go.mod h1:aUW0S9eb9VCaPohFCH3j7czOx1PMW3i1HrSzbLYGBSE=
-xorm.io/xorm v1.3.5 h1:cMdszQP8meXLpa7hI4kv9t6AozGNDxqG2qujinGpdsg=
-xorm.io/xorm v1.3.5/go.mod h1:qFJGFoVYbbIdnz2vaL5OxSQ2raleMpyRRalnq3n9OJo=
+xorm.io/xorm v1.3.5-0.20231219045404-7ae7474bcbf6 h1:1pmm7oRgfzL3HKwCaXaUC6tItJGSlrWXZqh28lFd9K0=
+xorm.io/xorm v1.3.5-0.20231219045404-7ae7474bcbf6/go.mod h1:qFJGFoVYbbIdnz2vaL5OxSQ2raleMpyRRalnq3n9OJo=

models/activities/action.go

@@ -446,9 +446,12 @@ func GetFeeds(ctx context.Context, opts GetFeedsOptions) (ActionList, int64, err
 		return nil, 0, err
 	}
 
-	sess := db.GetEngine(ctx).Where(cond).
-		Select("`action`.*"). // this line will avoid select other joined table's columns
-		Join("INNER", "repository", "`repository`.id = `action`.repo_id")
+	sess := db.GetEngine(ctx).Where(cond)
+	if setting.Database.Type.IsMySQL() {
+		sess = sess.IndexHint("USE", "JOIN", "IDX_action_c_u_d")
+	}
+	sess = sess.Select("`action`.*"). // this line will avoid select other joined table's columns
+						Join("INNER", "repository", "`repository`.id = `action`.repo_id")
 
 	opts.SetDefaultValues()
 	sess = db.SetSessionPagination(sess, &opts)