func convertBatchError(tableDesc *sqlbase.TableDescriptor, b *client.Batch) error {
origPErr := b.MustPErr()
if origPErr.Index == nil {
return origPErr.GoError()
}
index := origPErr.Index.Index
if index >= int32(len(b.Results)) {
panic(fmt.Sprintf("index %d outside of results: %+v", index, b.Results))
}
result := b.Results[index]
var alloc sqlbase.DatumAlloc
if _, ok := origPErr.GetDetail().(*roachpb.ConditionFailedError); ok {
for _, row := range result.Rows {
indexID, key, err := sqlbase.DecodeIndexKeyPrefix(tableDesc, row.Key)
if err != nil {
return err
}
index, err := tableDesc.FindIndexByID(indexID)
if err != nil {
return err
}
valTypes, err := sqlbase.MakeKeyVals(tableDesc, index.ColumnIDs)
if err != nil {
return err
}
dirs := make([]encoding.Direction, 0, len(index.ColumnIDs))
for _, dir := range index.ColumnDirections {
convertedDir, err := dir.ToEncodingDirection()
if err != nil {
return err
}
dirs = append(dirs, convertedDir)
}
vals := make([]parser.Datum, len(valTypes))
if _, err := sqlbase.DecodeKeyVals(&alloc, valTypes, vals, dirs, key); err != nil {
return err
}
return sqlbase.NewUniquenessConstraintViolationError(index, vals)
}
}
return origPErr.GoError()
}