TruncateCollection()

This operation removes all data from a collection while keeping its schema.

Go

func (c *Client) TruncateCollection(ctx context.Context, option TruncateCollectionOption, callOptions ...grpc.CallOption) error

Request Syntax

Go

option := milvusclient.NewTruncateCollectionOption(collectionName)

err := client.TruncateCollection(ctx, option)

PARAMETERS:

• option (TruncateCollectionOption)

  The options for truncating the collection. Use NewTruncateCollectionOption to construct.

BUILDER METHODS:

• NewTruncateCollectionOption(name string)

  Creates options to truncate a collection. name specifies the collection to truncate.

RETURN TYPE:

error

RETURNS:

Returns nil after the collection is truncated. Returns an error if the operation fails.

ERROR HANDLING:

• error

  Request construction or the RPC fails. Check err != nil for failure details.

Example

Go

import (
	"context"

	"github.com/milvus-io/milvus/client/v3/milvusclient"
)

ctx, cancel := context.WithCancel(context.Background())
defer cancel()

cli, err := milvusclient.New(ctx, &milvusclient.ClientConfig{Address: "127.0.0.1:19530"})
if err != nil {
	// handle error
}
defer cli.Close(ctx)

err = cli.TruncateCollection(ctx, milvusclient.NewTruncateCollectionOption("books"))
if err != nil {
	// handle error
}