diff --git a/contrib/drivers/mssql/mssql.go b/contrib/drivers/mssql/mssql.go
index 1c440efa3..c5ff3d6e3 100644
--- a/contrib/drivers/mssql/mssql.go
+++ b/contrib/drivers/mssql/mssql.go
@@ -134,11 +134,12 @@ func (d *DriverMssql) parseSql(sql string) string {
 	if err != nil {
 		return ""
 	}
-	index := 0
-	keyword := strings.TrimSpace(res[index][0])
-	keyword = strings.ToUpper(keyword)
+	var (
+		index   = 0
+		keyword = strings.TrimSpace(res[index][0])
+	)
 	index++
-	switch keyword {
+	switch strings.ToUpper(keyword) {
 	case "SELECT":
 		// LIMIT statement checks.
 		if len(res) < 2 ||
@@ -150,9 +151,11 @@ func (d *DriverMssql) parseSql(sql string) string {
 			break
 		}
 		// ORDER BY statement checks.
-		selectStr := ""
-		orderStr := ""
-		haveOrder := gregex.IsMatchString("((?i)SELECT)(.+)((?i)ORDER BY)", sql)
+		var (
+			selectStr = ""
+			orderStr  = ""
+			haveOrder = gregex.IsMatchString("((?i)SELECT)(.+)((?i)ORDER BY)", sql)
+		)
 		if haveOrder {
 			queryExpr, _ := gregex.MatchString("((?i)SELECT)(.+)((?i)ORDER BY)", sql)
 			if len(queryExpr) != 4 ||
@@ -283,7 +286,7 @@ LEFT JOIN sys.extended_properties g ON a.id=g.major_id AND a.colid=g.minor_id
 LEFT JOIN sys.extended_properties f ON d.id=f.major_id AND f.minor_id =0
 WHERE d.name='%s'
 ORDER BY a.id,a.colorder`,
-				strings.ToUpper(table),
+				table,
 			)
 			structureSql, _ = gregex.ReplaceString(`[\n\r\s]+`, " ", gstr.Trim(structureSql))
 			result, err = d.DoGetAll(ctx, link, structureSql)
@@ -294,8 +297,8 @@ ORDER BY a.id,a.colorder`,
 			for i, m := range result {
 				fields[strings.ToLower(m["Field"].String())] = &gdb.TableField{
 					Index:   i,
-					Name:    strings.ToLower(m["Field"].String()),
-					Type:    strings.ToLower(m["Type"].String()),
+					Name:    m["Field"].String(),
+					Type:    m["Type"].String(),
 					Null:    m["Null"].Bool(),
 					Key:     m["Key"].String(),
 					Default: m["Default"].Val(),
diff --git a/contrib/drivers/pgsql/pgsql.go b/contrib/drivers/pgsql/pgsql.go
index 5ed9af2f6..396cdd1b5 100644
--- a/contrib/drivers/pgsql/pgsql.go
+++ b/contrib/drivers/pgsql/pgsql.go
@@ -13,13 +13,12 @@
 package pgsql
 
 import (
-	_ "github.com/lib/pq"
-
 	"context"
 	"database/sql"
 	"database/sql/driver"
 	"fmt"
-	"strings"
+
+	_ "github.com/lib/pq"
 
 	"github.com/gogf/gf/v2/container/gmap"
 	"github.com/gogf/gf/v2/database/gdb"
@@ -180,7 +179,7 @@ FROM pg_attribute a
          left join information_schema.columns ic on ic.column_name = a.attname and ic.table_name = c.relname
 WHERE c.relname = '%s' and a.attisdropped is false and a.attnum > 0
 ORDER BY a.attnum`,
-					strings.ToLower(table),
+					table,
 				)
 			)
 			if link, err = d.SlaveLink(useSchema); err != nil {