Check Partition Information

This topic describes how to check the information of partitions in Milvus.

Verify if a partition exists

Verify if a partition exists in the specified collection.

from pymilvus import Collection
collection = Collection("book")      # Get an existing collection.
collection.has_partition("novel")

await milvusClient.hasPartition({
  collection_name: "book",
  partition_name: "novel",
});

hasPar, err := milvusClient.HasPartition(
  context.Background(),   // ctx
  "book",                 // CollectionName
  "novel",                // partitionName
)
if err != nil {
  log.Fatal("failed to check the partition:", err.Error())
}
log.Println(hasPar)

R<Boolean> respHasPartition = milvusClient.hasPartition(
  HasPartitionParam.newBuilder()
    .withCollectionName("book")
    .withPartitionName("novel")
    .build()
);
if (respHasPartition.getData() == Boolean.TRUE) {
  System.out.println("Partition exists.");
}

var exists = await milvusClient.GetCollection("book").HasPartitionAsync("novel");

Parameter	Description
partition_name	Name of the partition to check.

Parameter	Description
collection_name	Name of the collection to check.
partition_name	Name of the partition to check.

Parameter	Description
ctx	Context to control API invocation process.
CollectionName	Name of the collection to check.
partitionName	Name of the partition to check.

Parameter	Description
collection_name	Name of the collection to check.
partition_name	Name of the partition to check.

List all partitions

from pymilvus import Collection
collection = Collection("book")      # Get an existing collection.
collection.partitions

await milvusClient.showPartitions({
  collection_name: "book",
});

listPar, err := milvusClient.ShowPartitions(
  context.Background(),   // ctx
  "book",                 // CollectionName
)
if err != nil {
  log.Fatal("failed to list partitions:", err.Error())
}
log.Println(listPar)

R<ShowPartitionsResponse> respShowPartitions = milvusClient.showPartitions(
  ShowPartitionsParam.newBuilder()
          .withCollectionName("book")
          .build()
);
System.out.println(respShowPartitions);

var partitions = await milvusClient.GetCollection("book").ShowPartitionsAsync();

Parameter	Description
collection_name	Name of the collection to check.

Parameter	Description
ctx	Context to control API invocation process.
CollectionName	Name of the collection to check.

Parameter	Description
CollectionName	Name of the collection to check.

Parameter	Description
collectionName	Name of the collection to check.

What’s next

• Learn more basic operations of Milvus:
  • Insert data into Milvus
  • Build an index for vectors
  • Conduct a vector search
  • Conduct a hybrid search