mirror of https://github.com/go-gorm/gorm.git
63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package dialect
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import (
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"database/sql"
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"fmt"
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"time"
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)
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type postgres struct {
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}
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func (s *postgres) BinVar(i int) string {
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return fmt.Sprintf("$%v", i)
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}
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func (s *postgres) SupportLastInsertId() bool {
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return false
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}
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func (d *postgres) SqlTag(column interface{}, size int) string {
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switch column.(type) {
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case time.Time:
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return "timestamp with time zone"
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case bool, sql.NullBool:
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return "boolean"
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case int, int8, int16, int32, uint, uint8, uint16, uint32:
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return "integer"
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case int64, uint64, sql.NullInt64:
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return "bigint"
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case float32, float64, sql.NullFloat64:
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return "numeric"
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case []byte:
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return "bytea"
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case string, sql.NullString:
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if size > 0 && size < 65532 {
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return fmt.Sprintf("varchar(%d)", size)
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} else {
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return "text"
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}
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default:
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panic("Invalid sql type for postgres")
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}
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}
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func (s *postgres) PrimaryKeyTag(column interface{}, size int) string {
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switch column.(type) {
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case int, int8, int16, int32, uint, uint8, uint16, uint32:
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return "serial"
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case int64, uint64:
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return "bigserial"
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default:
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panic("Invalid primary key type")
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}
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}
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func (s *postgres) ReturningStr(key string) (str string) {
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return fmt.Sprintf("RETURNING \"%v\"", key)
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}
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func (s *postgres) Quote(key string) (str string) {
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return fmt.Sprintf("\"%s\"", key)
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}
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