HasCollection()

Addedv2.5.x

This method checks whether the specified collection exists.

func (c *Client) HasCollection(ctx context.Context, option HasCollectionOption, callOptions ...grpc.CallOption) (has bool, err error)

Request Parameters

Parameter	Description	Type
ctx	Context for the current call to work.	context.Context
option	Optional parameters of the methods.	HasCollectionOption
callOpts	Optional parameters for calling the methods.	grpc.CallOption

HasCollectionOption

This is an interface type. The hasCollectionOption struct type implements this interface type.

You can use the NewHasCollectionOption() function to get the concrete implementation.

NewHasCollectionOption

The signature of this method is as follows:

func NewHasCollectionOption(name string) HasCollectionOption

Parameter	Description	Type
name	Name of the collection to check.	string

Return

bool

Example

import (
        "context"
        "github.com/milvus-io/milvus/client/v2/milvusclient"
)

has, err = cli.HasCollection(ctx, milvusclient.NewHasCollectionOption("customized_setup_2"))
if err != nil {
       // handle err
}

fmt.println(has)