Retry create issue to cope with duplicate keys (#7898)

* Retry create issue to cope with duplicate keys

* Use  .SetExpr().Where().Insert()

vendor/xorm.io/core/db.go

@@ -15,6 +15,7 @@ import (
 )
 
 var (
+	// DefaultCacheSize sets the default cache size
 	DefaultCacheSize = 200
 )
 
@@ -132,6 +133,7 @@ func (db *DB) Query(query string, args ...interface{}) (*Rows, error) {
 	return db.QueryContext(context.Background(), query, args...)
 }
 
+// QueryMapContext executes query with parameters via map and context
 func (db *DB) QueryMapContext(ctx context.Context, query string, mp interface{}) (*Rows, error) {
 	query, args, err := MapToSlice(query, mp)
 	if err != nil {
@@ -140,6 +142,7 @@ func (db *DB) QueryMapContext(ctx context.Context, query string, mp interface{})
 	return db.QueryContext(ctx, query, args...)
 }
 
+// QueryMap executes query with parameters via map
 func (db *DB) QueryMap(query string, mp interface{}) (*Rows, error) {
 	return db.QueryMapContext(context.Background(), query, mp)
 }
@@ -196,6 +199,7 @@ var (
 	re = regexp.MustCompile(`[?](\w+)`)
 )
 
+// ExecMapContext exec map with context.Context
 // insert into (name) values (?)
 // insert into (name) values (?name)
 func (db *DB) ExecMapContext(ctx context.Context, query string, mp interface{}) (sql.Result, error) {