本文整理匯總了Golang中github.com/cockroachdb/cockroach/pkg/internal/client.Batch.Put方法的典型用法代碼示例。如果您正苦於以下問題：Golang Batch.Put方法的具體用法？Golang Batch.Put怎麽用？Golang Batch.Put使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/cockroachdb/cockroach/pkg/internal/client.Batch的用法示例。
在下文中一共展示了Batch.Put方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: updateRow
//.........這裏部分代碼省略.........
// TODO(dan): This has gotten very similar to the loop in insertRow, see if
// they can be DRY'd. Ideally, this would also work for
// truncateAndBackfillColumnsChunk, which is currently abusing rowUdpdater.
for i, family := range ru.helper.tableDesc.Families {
update := false
for _, colID := range family.ColumnIDs {
if _, ok := ru.updateColIDtoRowIndex[colID]; ok {
update = true
break
}
}
if !update {
continue
}
if i > 0 {
// HACK: MakeFamilyKey appends to its argument, so on every loop iteration
// after the first, trim primaryIndexKey so nothing gets overwritten.
// TODO(dan): Instead of this, use something like engine.ChunkAllocator.
primaryIndexKey = primaryIndexKey[:len(primaryIndexKey):len(primaryIndexKey)]
}
if len(family.ColumnIDs) == 1 && family.ColumnIDs[0] == family.DefaultColumnID {
// Storage optimization to store DefaultColumnID directly as a value. Also
// backwards compatible with the original BaseFormatVersion.
idx, ok := ru.updateColIDtoRowIndex[family.DefaultColumnID]
if !ok {
continue
}
ru.key = keys.MakeFamilyKey(primaryIndexKey, uint32(family.ID))
if log.V(2) {
log.Infof(ctx, "Put %s -> %v", ru.key, ru.marshalled[idx].PrettyPrint())
}
b.Put(&ru.key, &ru.marshalled[idx])
ru.key = nil
continue
}
ru.key = keys.MakeFamilyKey(primaryIndexKey, uint32(family.ID))
ru.valueBuf = ru.valueBuf[:0]
var lastColID sqlbase.ColumnID
familySortedColumnIDs, ok := ru.helper.sortedColumnFamily(family.ID)
if !ok {
panic("invalid family sorted column id map")
}
for _, colID := range familySortedColumnIDs {
if ru.helper.columnInPK(colID) {
if family.ID != 0 {
return nil, errors.Errorf("primary index column %d must be in family 0, was %d", colID, family.ID)
}
// Skip primary key columns as their values are encoded in the key of
// each family. Family 0 is guaranteed to exist and acts as a sentinel.
continue
}
idx, ok := ru.fetchColIDtoRowIndex[colID]
if !ok {
return nil, errors.Errorf("column %d was expected to be fetched, but wasn't", colID)
}
col := ru.fetchCols[idx]
if ru.newValues[idx].Compare(parser.DNull) == 0 {示例2: putMeta
func putMeta(b *client.Batch, key roachpb.Key, desc *roachpb.RangeDescriptor) {
b.Put(key, desc)
}示例3: insertPutFn
// insertPutFn is used by insertRow when conflicts should be ignored.
// logValue is used for pretty printing.
func insertPutFn(ctx context.Context, b *client.Batch, key *roachpb.Key, value *roachpb.Value) {
if log.V(2) {
log.InfofDepth(ctx, 1, "Put %s -> %s", *key, value.PrettyPrint())
}
b.Put(key, value)
}