Fix postgres schema problem

dialects/dialect.go

@@ -43,7 +43,6 @@ type Dialect interface {
 	URI() *URI
 	SQLType(*schemas.Column) string
 	FormatBytes(b []byte) string
-	DefaultSchema() string
 
 	IsReserved(string) bool
 	Quoter() schemas.Quoter
@@ -83,10 +82,6 @@ func (b *Base) Quoter() schemas.Quoter {
 	return b.quoter
 }
 
-func (b *Base) DefaultSchema() string {
-	return ""
-}
-
 func (b *Base) Init(dialect Dialect, uri *URI) error {
 	b.dialect, b.uri = dialect, uri
 	return nil

dialects/postgres.go

@@ -817,10 +817,6 @@ func (db *postgres) SetQuotePolicy(quotePolicy QuotePolicy) {
 	}
 }
 
-func (db *postgres) DefaultSchema() string {
-	return postgresPublicSchema
-}
-
 func (db *postgres) SQLType(c *schemas.Column) string {
 	var res string
 	switch t := c.SQLType.Name; t {

dialects/table_name.go

@@ -18,7 +18,6 @@ func TableNameWithSchema(dialect Dialect, tableName string) string {
 	// Add schema name as prefix of table name.
 	// Only for postgres database.
 	if dialect.URI().Schema != "" &&
-		dialect.URI().Schema != dialect.DefaultSchema() &&
 		strings.Index(tableName, ".") == -1 {
 		return fmt.Sprintf("%s.%s", dialect.URI().Schema, tableName)
 	}