Table of Contents
A low-level client representing Amazon Timestream Query
import boto3
client = boto3.client('timestream-query')
These are the available methods:
Check if an operation can be paginated.
Cancels a query that has been issued. Cancellation is guaranteed only if the query has not completed execution before the cancellation request was issued. Because cancellation is an idempotent operation, subsequent cancellation requests will return a CancellationMessage , indicating that the query has already been canceled.
See also: AWS API Documentation
Request Syntax
response = client.cancel_query(
QueryId='string'
)
[REQUIRED]
The id of the query that needs to be cancelled. QueryID is returned as part of QueryResult.
{
'CancellationMessage': 'string'
}
Response Structure
A CancellationMessage is returned when a CancelQuery request for the query specified by QueryId has already been issued.
Exceptions
DescribeEndpoints returns a list of available endpoints to make Timestream API calls against. This API is available through both Write and Query.
Because Timestream’s SDKs are designed to transparently work with the service’s architecture, including the management and mapping of the service endpoints, it is not recommended that you use this API unless :
For detailed information on how to use DescribeEndpoints, see The Endpoint Discovery Pattern and REST APIs .
See also: AWS API Documentation
Request Syntax
response = client.describe_endpoints()
{
'Endpoints': [
{
'Address': 'string',
'CachePeriodInMinutes': 123
},
]
}
Response Structure
An Endpoints object is returned when a DescribeEndpoints request is made.
Represents an available endpoint against which to make API calls agaisnt, as well as the TTL for that endpoint.
An endpoint address.
The TTL for the endpoint, in minutes.
Exceptions
Generate a presigned url given a client, its method, and arguments
The presigned url
Create a paginator for an operation.
Returns an object that can wait for some condition.
Query is a synchronous operation that enables you to execute a query. Query will timeout after 60 seconds. You must update the default timeout in the SDK to support a timeout of 60 seconds. The result set will be truncated to 1MB. Service quotas apply. For more information, see Quotas in the Timestream Developer Guide.
See also: AWS API Documentation
Request Syntax
response = client.query(
QueryString='string',
ClientToken='string',
NextToken='string',
MaxRows=123
)
[REQUIRED]
The query to be executed by Timestream.
Unique, case-sensitive string of up to 64 ASCII characters that you specify when you make a Query request. Providing a ClientToken makes the call to Query idempotent, meaning that multiple identical calls have the same effect as one single call.
Your query request will fail in the following cases:
After 4 hours, any request with the same client token is treated as a new request.
This field is autopopulated if not provided.
dict
Response Syntax
{
'QueryId': 'string',
'NextToken': 'string',
'Rows': [
{
'Data': [
{
'ScalarValue': 'string',
'TimeSeriesValue': [
{
'Time': 'string',
'Value': {'... recursive ...'}
},
],
'ArrayValue': {'... recursive ...'},
'RowValue': {'... recursive ...'},
'NullValue': True|False
},
]
},
],
'ColumnInfo': [
{
'Name': 'string',
'Type': {
'ScalarType': 'VARCHAR'|'BOOLEAN'|'BIGINT'|'DOUBLE'|'TIMESTAMP'|'DATE'|'TIME'|'INTERVAL_DAY_TO_SECOND'|'INTERVAL_YEAR_TO_MONTH'|'UNKNOWN'|'INTEGER',
'ArrayColumnInfo': {'... recursive ...'},
'TimeSeriesMeasureValueColumnInfo': {'... recursive ...'},
'RowColumnInfo': {'... recursive ...'}
}
},
],
'QueryStatus': {
'ProgressPercentage': 123.0,
'CumulativeBytesScanned': 123,
'CumulativeBytesMetered': 123
}
}
Response Structure
(dict) --
QueryId (string) --
A unique ID for the given query.
NextToken (string) --
A pagination token that can be used again on a Query call to get the next set of results.
Rows (list) --
The result set rows returned by the query.
(dict) --
Represents a single row in the query results.
Data (list) --
List of data points in a single row of the result set.
(dict) --
Datum represents a single data point in a query result.
ScalarValue (string) --
Indicates if the data point is a scalar value such as integer, string, double, or boolean.
TimeSeriesValue (list) --
Indicates if the data point is of timeseries data type.
(dict) --
The timeseries datatype represents the values of a measure over time. A time series is an array of rows of timestamps and measure values, with rows sorted in ascending order of time. A TimeSeriesDataPoint is a single data point in the timeseries. It represents a tuple of (time, measure value) in a timeseries.
Time (string) --
The timestamp when the measure value was collected.
Value (dict) --
The measure value for the data point.
ArrayValue (list) --
Indicates if the data point is an array.
RowValue (dict) --
Indicates if the data point is a row.
NullValue (boolean) --
Indicates if the data point is null.
ColumnInfo (list) --
The column data types of the returned result set.
(dict) --
Contains the meta data for query results such as the column names, data types, and other attributes.
Name (string) --
The name of the result set column. The name of the result set is available for columns of all data types except for arrays.
Type (dict) --
The data type of the result set column. The data type can be a scalar or complex. Scalar data types are integers, strings, doubles, booleans, and others. Complex data types are types such as arrays, rows, and others.
ScalarType (string) --
Indicates if the column is of type string, integer, boolean, double, timestamp, date, time.
ArrayColumnInfo (dict) --
Indicates if the column is an array.
TimeSeriesMeasureValueColumnInfo (dict) --
Indicates if the column is a timeseries data type.
RowColumnInfo (list) --
Indicates if the column is a row.
QueryStatus (dict) --
Information about the status of the query, including progress and bytes scannned.
ProgressPercentage (float) --
The progress of the query, expressed as a percentage.
CumulativeBytesScanned (integer) --
The amount of data scanned by the query in bytes. This is a cumulative sum and represents the total amount of bytes scanned since the query was started.
CumulativeBytesMetered (integer) --
The amount of data scanned by the query in bytes that you will be charged for. This is a cumulative sum and represents the total amount of data that you will be charged for since the query was started. The charge is applied only once and is either applied when the query completes execution or when the query is cancelled.
Exceptions
The available paginators are:
paginator = client.get_paginator('query')
Creates an iterator that will paginate through responses from TimestreamQuery.Client.query().
See also: AWS API Documentation
Request Syntax
response_iterator = paginator.paginate(
QueryString='string',
ClientToken='string',
PaginationConfig={
'MaxItems': 123,
'PageSize': 123,
'StartingToken': 'string'
}
)
[REQUIRED]
The query to be executed by Timestream.
Unique, case-sensitive string of up to 64 ASCII characters that you specify when you make a Query request. Providing a ClientToken makes the call to Query idempotent, meaning that multiple identical calls have the same effect as one single call.
Your query request will fail in the following cases:
After 4 hours, any request with the same client token is treated as a new request.
This field is autopopulated if not provided.
A dictionary that provides parameters to control pagination.
The total number of items to return. If the total number of items available is more than the value specified in max-items then a NextToken will be provided in the output that you can use to resume pagination.
The size of each page.
A token to specify where to start paginating. This is the NextToken from a previous response.
dict
Response Syntax
{
'QueryId': 'string',
'Rows': [
{
'Data': [
{
'ScalarValue': 'string',
'TimeSeriesValue': [
{
'Time': 'string',
'Value': {'... recursive ...'}
},
],
'ArrayValue': {'... recursive ...'},
'RowValue': {'... recursive ...'},
'NullValue': True|False
},
]
},
],
'ColumnInfo': [
{
'Name': 'string',
'Type': {
'ScalarType': 'VARCHAR'|'BOOLEAN'|'BIGINT'|'DOUBLE'|'TIMESTAMP'|'DATE'|'TIME'|'INTERVAL_DAY_TO_SECOND'|'INTERVAL_YEAR_TO_MONTH'|'UNKNOWN'|'INTEGER',
'ArrayColumnInfo': {'... recursive ...'},
'TimeSeriesMeasureValueColumnInfo': {'... recursive ...'},
'RowColumnInfo': {'... recursive ...'}
}
},
],
'QueryStatus': {
'ProgressPercentage': 123.0,
'CumulativeBytesScanned': 123,
'CumulativeBytesMetered': 123
}
}
Response Structure
(dict) --
QueryId (string) --
A unique ID for the given query.
Rows (list) --
The result set rows returned by the query.
(dict) --
Represents a single row in the query results.
Data (list) --
List of data points in a single row of the result set.
(dict) --
Datum represents a single data point in a query result.
ScalarValue (string) --
Indicates if the data point is a scalar value such as integer, string, double, or boolean.
TimeSeriesValue (list) --
Indicates if the data point is of timeseries data type.
(dict) --
The timeseries datatype represents the values of a measure over time. A time series is an array of rows of timestamps and measure values, with rows sorted in ascending order of time. A TimeSeriesDataPoint is a single data point in the timeseries. It represents a tuple of (time, measure value) in a timeseries.
Time (string) --
The timestamp when the measure value was collected.
Value (dict) --
The measure value for the data point.
ArrayValue (list) --
Indicates if the data point is an array.
RowValue (dict) --
Indicates if the data point is a row.
NullValue (boolean) --
Indicates if the data point is null.
ColumnInfo (list) --
The column data types of the returned result set.
(dict) --
Contains the meta data for query results such as the column names, data types, and other attributes.
Name (string) --
The name of the result set column. The name of the result set is available for columns of all data types except for arrays.
Type (dict) --
The data type of the result set column. The data type can be a scalar or complex. Scalar data types are integers, strings, doubles, booleans, and others. Complex data types are types such as arrays, rows, and others.
ScalarType (string) --
Indicates if the column is of type string, integer, boolean, double, timestamp, date, time.
ArrayColumnInfo (dict) --
Indicates if the column is an array.
TimeSeriesMeasureValueColumnInfo (dict) --
Indicates if the column is a timeseries data type.
RowColumnInfo (list) --
Indicates if the column is a row.
QueryStatus (dict) --
Information about the status of the query, including progress and bytes scannned.
ProgressPercentage (float) --
The progress of the query, expressed as a percentage.
CumulativeBytesScanned (integer) --
The amount of data scanned by the query in bytes. This is a cumulative sum and represents the total amount of bytes scanned since the query was started.
CumulativeBytesMetered (integer) --
The amount of data scanned by the query in bytes that you will be charged for. This is a cumulative sum and represents the total amount of data that you will be charged for since the query was started. The charge is applied only once and is either applied when the query completes execution or when the query is cancelled.