make stmt cache smaller

orm/cmd_utils.go

@@ -197,9 +197,9 @@ func getDbCreateSQL(al *alias) (sqls []string, tableIndexes map[string][]dbIndex
 			if strings.Contains(column, "%COL%") {
 				column = strings.Replace(column, "%COL%", fi.column, -1)
 			}
-			
-			if fi.description != "" && al.Driver!=DRSqlite {
-				column += " " + fmt.Sprintf("COMMENT '%s'",fi.description)
+
+			if fi.description != "" && al.Driver != DRSqlite {
+				column += " " + fmt.Sprintf("COMMENT '%s'", fi.description)
 			}
 
 			columns = append(columns, column)

orm/db_alias.go

@@ -18,10 +18,11 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
-	lru "github.com/hashicorp/golang-lru"
 	"reflect"
 	"sync"
 	"time"
+
+	lru "github.com/hashicorp/golang-lru"
 )
 
 // DriverType database driver constant int.
@@ -424,7 +425,7 @@ func GetDB(aliasNames ...string) (*sql.DB, error) {
 }
 
 type stmtDecorator struct {
-	wg sync.WaitGroup
+	wg   sync.WaitGroup
 	stmt *sql.Stmt
 }
 
@@ -459,7 +460,9 @@ func newStmtDecorator(sqlStmt *sql.Stmt) *stmtDecorator {
 }
 
 func newStmtDecoratorLruWithEvict() *lru.Cache {
-	cache, _ := lru.NewWithEvict(1000, func(key interface{}, value interface{}) {
+	// temporarily solution
+	// we fixed this problem in v2.x
+	cache, _ := lru.NewWithEvict(50, func(key interface{}, value interface{}) {
 		value.(*stmtDecorator).destroy()
 	})
 	return cache

orm/orm_log.go

@@ -61,7 +61,7 @@ func debugLogQueies(alias *alias, operaton, query string, t time.Time, err error
 		con += " - " + err.Error()
 	}
 	logMap["sql"] = fmt.Sprintf("%s-`%s`", query, strings.Join(cons, "`, `"))
-	if LogFunc != nil{
+	if LogFunc != nil {
 		LogFunc(logMap)
 	}
 	DebugLog.Println(con)