Update table

You can use the following code snippets to update a table.

Note

These code snippets are based on full sample applications on GitHub. For more information about how to get started with the sample applications, see Sample application.

Java

    public void updateTable() {
        System.out.println("Updating table");
        UpdateTableRequest updateTableRequest = new UpdateTableRequest();
        updateTableRequest.setDatabaseName(DATABASE_NAME);
        updateTableRequest.setTableName(TABLE_NAME);

        final RetentionProperties retentionProperties = new RetentionProperties()
                .withMemoryStoreRetentionPeriodInHours(HT_TTL_HOURS)
                .withMagneticStoreRetentionPeriodInDays(CT_TTL_DAYS);

        updateTableRequest.setRetentionProperties(retentionProperties);

        amazonTimestreamWrite.updateTable(updateTableRequest);
        System.out.println("Table updated");
    }

Java v2

    public void updateTable() {
        System.out.println("Updating table");

        final RetentionProperties retentionProperties = RetentionProperties.builder()
                .memoryStoreRetentionPeriodInHours(HT_TTL_HOURS)
                .magneticStoreRetentionPeriodInDays(CT_TTL_DAYS).build();
        final UpdateTableRequest updateTableRequest = UpdateTableRequest.builder()
                .databaseName(DATABASE_NAME).tableName(TABLE_NAME).retentionProperties(retentionProperties).build();

        timestreamWriteClient.updateTable(updateTableRequest);
        System.out.println("Table updated");
    }

Go

// Update table.
    magneticStoreRetentionPeriodInDays := int64(7 * 365)
    memoryStoreRetentionPeriodInHours := int64(24)

    updateTableInput := &timestreamwrite.UpdateTableInput{
        DatabaseName: aws.String(*databaseName),
        TableName:    aws.String(*tableName),
        RetentionProperties: &timestreamwrite.RetentionProperties{
            MagneticStoreRetentionPeriodInDays: &magneticStoreRetentionPeriodInDays,
            MemoryStoreRetentionPeriodInHours:  &memoryStoreRetentionPeriodInHours,
        },
    }
    updateTableOutput, err := writeSvc.UpdateTable(updateTableInput)

    if err != nil {
        fmt.Println("Error:")
        fmt.Println(err)
    } else {
        fmt.Println("Update table is successful, below is the output:")
        fmt.Println(updateTableOutput)
    }

Python

    def update_table(self):
        print("Updating table")
        retention_properties = {
            'MemoryStoreRetentionPeriodInHours': Constant.HT_TTL_HOURS,
            'MagneticStoreRetentionPeriodInDays': Constant.CT_TTL_DAYS
        }
        try:
            self.client.update_table(DatabaseName=Constant.DATABASE_NAME, TableName=Constant.TABLE_NAME,
                                     RetentionProperties=retention_properties)
            print("Table updated.")
        except Exception as err:
            print("Update table failed:", err)

Node.js

The following snippet uses AWS SDK for JavaScript v3. For more information about how to install the client and usage, see Timestream Write Client - AWS SDK for JavaScript v3.

Also see Class UpdateTableCommand and UpdateTable.

import { TimestreamWriteClient, UpdateTableCommand } from "@aws-sdk/client-timestream-write";
const writeClient = new TimestreamWriteClient({ region: "us-east-1" });

const params = {
    DatabaseName: "testDbFromNode",
    TableName: "testTableFromNode",
    RetentionProperties: {
        MemoryStoreRetentionPeriodInHours: 24,
        MagneticStoreRetentionPeriodInDays: 180
    }
};

const command = new UpdateTableCommand(params);

try {
    const data = await writeClient.send(command);
    console.log("Table updated")
} catch (error) {
    console.log("Error updating table. ", error);
}

The following snippet uses the AWS SDK for JavaScript V2 style. It is based on the sample application at Node.js sample Amazon Timestream for LiveAnalytics application on GitHub.

async function updateTable() {
    console.log("Updating Table");
    const params = {
        DatabaseName: constants.DATABASE_NAME,
        TableName: constants.TABLE_NAME,
        RetentionProperties: {
            MemoryStoreRetentionPeriodInHours: constants.HT_TTL_HOURS,
            MagneticStoreRetentionPeriodInDays: constants.CT_TTL_DAYS
        }
    };

    const promise = writeClient.updateTable(params).promise();

    await promise.then(
        (data) => {
            console.log("Table updated")
        },
        (err) => {
            console.log("Error updating table. ", err);
            throw err;
        }
    );
}

.NET

        public async Task UpdateTable()
        {
            Console.WriteLine("Updating Table");

            try
            {
                var updateTableRequest = new UpdateTableRequest
                {
                    DatabaseName = Constants.DATABASE_NAME,
                    TableName = Constants.TABLE_NAME,
                    RetentionProperties = new RetentionProperties
                    {
                        MagneticStoreRetentionPeriodInDays = Constants.CT_TTL_DAYS,
                        MemoryStoreRetentionPeriodInHours = Constants.HT_TTL_HOURS
                    }
                };
                UpdateTableResponse response = await writeClient.UpdateTableAsync(updateTableRequest);
                Console.WriteLine($"Table {Constants.TABLE_NAME} updated");
            }
            catch (ResourceNotFoundException)
            {
                Console.WriteLine("Table does not exist.");
            }
            catch (Exception e)
            {
                Console.WriteLine("Update table failed:" + e.ToString());
            }

        }