string.go 667 B

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  1. package column
  2. import (
  3. "github.com/ClickHouse/clickhouse-go/lib/binary"
  4. )
  5. type String struct{ base }
  6. func (String) Read(decoder *binary.Decoder, isNull bool) (interface{}, error) {
  7. v, err := decoder.String()
  8. if err != nil {
  9. return "", err
  10. }
  11. return v, nil
  12. }
  13. func (str *String) Write(encoder *binary.Encoder, v interface{}) error {
  14. switch v := v.(type) {
  15. case string:
  16. return encoder.String(v)
  17. case []byte:
  18. return encoder.RawString(v)
  19. // this relies on Nullable never sending nil values through
  20. case *string:
  21. return encoder.String(*v)
  22. case *[]byte:
  23. return encoder.RawString(*v)
  24. }
  25. return &ErrUnexpectedType{
  26. T: v,
  27. Column: str,
  28. }
  29. }