diff --git a/dialects/postgres.go b/dialects/postgres.go
index 2e314812..80e2f0ad 100644
--- a/dialects/postgres.go
+++ b/dialects/postgres.go
@@ -1022,8 +1022,8 @@ WHERE c.relkind = 'r'::char AND c.relname = $1%s AND f.attnum > 0 ORDER BY f.att
 
 		col.Nullable = (isNullable == "YES")
 
-		switch dataType {
-		case "character varying", "character":
+		switch strings.ToLower(dataType) {
+		case "character varying", "character", "string":
 			col.SQLType = schemas.SQLType{Name: schemas.Varchar, DefaultLength: 0, DefaultLength2: 0}
 		case "timestamp without time zone":
 			col.SQLType = schemas.SQLType{Name: schemas.DateTime, DefaultLength: 0, DefaultLength2: 0}
@@ -1035,10 +1035,19 @@ WHERE c.relkind = 'r'::char AND c.relname = $1%s AND f.attnum > 0 ORDER BY f.att
 			col.SQLType = schemas.SQLType{Name: schemas.Bool, DefaultLength: 0, DefaultLength2: 0}
 		case "time without time zone":
 			col.SQLType = schemas.SQLType{Name: schemas.Time, DefaultLength: 0, DefaultLength2: 0}
+		case "bytes":
+			col.SQLType = schemas.SQLType{Name: schemas.Binary, DefaultLength: 0, DefaultLength2: 0}
 		case "oid":
 			col.SQLType = schemas.SQLType{Name: schemas.BigInt, DefaultLength: 0, DefaultLength2: 0}
 		default:
-			col.SQLType = schemas.SQLType{Name: strings.ToUpper(dataType), DefaultLength: 0, DefaultLength2: 0}
+			startIdx := strings.Index(strings.ToLower(dataType), "string(")
+			if startIdx != -1 && strings.HasSuffix(dataType, ")") {
+				length := dataType[startIdx+8 : len(dataType)-1]
+				l, _ := strconv.Atoi(length)
+				col.SQLType = schemas.SQLType{Name: "STRING", DefaultLength: l, DefaultLength2: 0}
+			} else {
+				col.SQLType = schemas.SQLType{Name: strings.ToUpper(dataType), DefaultLength: 0, DefaultLength2: 0}
+			}
 		}
 		if _, ok := schemas.SqlTypes[col.SQLType.Name]; !ok {
 			return nil, nil, fmt.Errorf("Unknown colType: %v", dataType)
@@ -1128,6 +1137,10 @@ func (db *postgres) GetIndexes(ctx context.Context, tableName string) (map[strin
 		if err != nil {
 			return nil, err
 		}
+
+		if indexName == "primary" {
+			continue
+		}
 		indexName = strings.Trim(indexName, `" `)
 		if strings.HasSuffix(indexName, "_pkey") {
 			continue
@@ -1149,7 +1162,7 @@ func (db *postgres) GetIndexes(ctx context.Context, tableName string) (map[strin
 
 		index := &schemas.Index{Name: indexName, Type: indexType, Cols: make([]string, 0)}
 		for _, colName := range colNames {
-			index.Cols = append(index.Cols, strings.Trim(colName, `" `))
+			index.Cols = append(index.Cols, strings.TrimSpace(strings.Replace(colName, `"`, "", -1)))
 		}
 		index.IsRegular = isRegular
 		indexes[index.Name] = index
diff --git a/engine.go b/engine.go
index 421e89e0..7865b7cb 100644
--- a/engine.go
+++ b/engine.go
@@ -284,12 +284,19 @@ func (engine *Engine) loadTableInfo(table *schemas.Table) error {
 	}
 	table.Indexes = indexes
 
+	var seq int
 	for _, index := range indexes {
 		for _, name := range index.Cols {
-			if col := table.GetColumn(name); col != nil {
+			parts := strings.Split(name, " ")
+			if len(parts) > 1 {
+				if parts[1] == "DESC" {
+					seq = 1
+				}
+			}
+			if col := table.GetColumn(parts[0]); col != nil {
 				col.Indexes[index.Name] = index.Type
 			} else {
-				return fmt.Errorf("Unknown col %s in index %v of table %v, columns %v", name, index.Name, table.Name, table.ColumnsSeq())
+				return fmt.Errorf("Unknown col %s seq %d, in index %v of table %v, columns %v", name, seq, index.Name, table.Name, table.ColumnsSeq())
 			}
 		}
 	}
diff --git a/test_cockroach.sh b/test_cockroach.sh
new file mode 100755
index 00000000..ea6a844b
--- /dev/null
+++ b/test_cockroach.sh
@@ -0,0 +1 @@
+go test -db=postgres -conn_str="postgresql://root@localhost:26257/xorm_test?sslmode=disable"
\ No newline at end of file