Package types (3.3.0)

API documentation for spanner_v1.types package.

Classes

BatchCreateSessionsRequest

The request for BatchCreateSessions][google.spanner.v1.Spanner.BatchCreateSessions].

BatchCreateSessionsResponse

The response for BatchCreateSessions][google.spanner.v1.Spanner.BatchCreateSessions].

BeginTransactionRequest

The request for BeginTransaction][google.spanner.v1.Spanner.BeginTransaction].

CommitRequest

The request for Commit][google.spanner.v1.Spanner.Commit].

CommitResponse

The response for Commit][google.spanner.v1.Spanner.Commit].

CreateSessionRequest

The request for CreateSession][google.spanner.v1.Spanner.CreateSession].

DeleteSessionRequest

The request for DeleteSession][google.spanner.v1.Spanner.DeleteSession].

ExecuteBatchDmlRequest

The request for ExecuteBatchDml][google.spanner.v1.Spanner.ExecuteBatchDml].

ExecuteBatchDmlResponse

The response for ExecuteBatchDml][google.spanner.v1.Spanner.ExecuteBatchDml]. Contains a list of ResultSet][google.spanner.v1.ResultSet] messages, one for each DML statement that has successfully executed, in the same order as the statements in the request. If a statement fails, the status in the response body identifies the cause of the failure.

To check for DML statements that failed, use the following approach:

  1. Check the status in the response message. The google.rpc.Code][google.rpc.Code] enum value OK indicates that all statements were executed successfully.
  2. If the status was not OK, check the number of result sets in the response. If the response contains N ResultSet][google.spanner.v1.ResultSet] messages, then statement N+1 in the request failed.

Example 1:

  • Request: 5 DML statements, all executed successfully.
  • Response: 5 ResultSet][google.spanner.v1.ResultSet] messages, with the status OK.

Example 2:

  • Request: 5 DML statements. The third statement has a syntax error.
  • Response: 2 ResultSet][google.spanner.v1.ResultSet] messages, and a syntax error (INVALID_ARGUMENT) status. The number of ResultSet][google.spanner.v1.ResultSet] messages indicates that the third statement failed, and the fourth and fifth statements were not executed.

ExecuteSqlRequest

The request for ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] and ExecuteStreamingSql][google.spanner.v1.Spanner.ExecuteStreamingSql].

GetSessionRequest

The request for GetSession][google.spanner.v1.Spanner.GetSession].

KeyRange

KeyRange represents a range of rows in a table or index.

A range has a start key and an end key. These keys can be open or closed, indicating if the range includes rows with that key.

Keys are represented by lists, where the ith value in the list corresponds to the ith component of the table or index primary key. Individual values are encoded as described here][google.spanner.v1.TypeCode].

For example, consider the following table definition:

::

CREATE TABLE UserEvents (
  UserName STRING(MAX),
  EventDate STRING(10)
) PRIMARY KEY(UserName, EventDate);

The following keys name rows in this table:

::

["Bob", "2014-09-23"]
["Alfred", "2015-06-12"]

Since the UserEvents table's PRIMARY KEY clause names two columns, each UserEvents key has two elements; the first is the UserName, and the second is the EventDate.

Key ranges with multiple components are interpreted lexicographically by component using the table or index key's declared sort order. For example, the following range returns all events for user "Bob" that occurred in the year 2015:

::

"start_closed": ["Bob", "2015-01-01"]
"end_closed": ["Bob", "2015-12-31"]

Start and end keys can omit trailing key components. This affects the inclusion and exclusion of rows that exactly match the provided key components: if the key is closed, then rows that exactly match the provided components are included; if the key is open, then rows that exactly match are not included.

For example, the following range includes all events for "Bob" that occurred during and after the year 2000:

::

"start_closed": ["Bob", "2000-01-01"]
"end_closed": ["Bob"]

The next example retrieves all events for "Bob":

::

"start_closed": ["Bob"]
"end_closed": ["Bob"]

To retrieve events before the year 2000:

::

"start_closed": ["Bob"]
"end_open": ["Bob", "2000-01-01"]

The following range includes all rows in the table:

::

"start_closed": []
"end_closed": []

This range returns all users whose UserName begins with any character from A to C:

::

"start_closed": ["A"]
"end_open": ["D"]

This range returns all users whose UserName begins with B:

::

"start_closed": ["B"]
"end_open": ["C"]

Key ranges honor column sort order. For example, suppose a table is defined as follows:

::

CREATE TABLE DescendingSortedTable {
  Key INT64,
  ...
) PRIMARY KEY(Key DESC);

The following range retrieves all rows with key values between 1 and 100 inclusive:

::

"start_closed": ["100"]
"end_closed": ["1"]

Note that 100 is passed as the start, and 1 is passed as the end, because Key is a descending column in the schema.

KeySet

KeySet defines a collection of Cloud Spanner keys and/or key ranges. All the keys are expected to be in the same table or index. The keys need not be sorted in any particular way.

If the same key is specified multiple times in the set (for example if two ranges, two keys, or a key and a range overlap), Cloud Spanner behaves as if the key were only specified once.

ListSessionsRequest

The request for ListSessions][google.spanner.v1.Spanner.ListSessions].

ListSessionsResponse

The response for ListSessions][google.spanner.v1.Spanner.ListSessions].

Mutation

A modification to one or more Cloud Spanner rows. Mutations can be applied to a Cloud Spanner database by sending them in a Commit][google.spanner.v1.Spanner.Commit] call.

PartialResultSet

Partial results from a streaming read or SQL query. Streaming reads and SQL queries better tolerate large result sets, large rows, and large values, but are a little trickier to consume.

Partition

Information returned for each partition returned in a PartitionResponse.

PartitionOptions

Options for a PartitionQueryRequest and PartitionReadRequest.

PartitionQueryRequest

The request for PartitionQuery][google.spanner.v1.Spanner.PartitionQuery]

PartitionReadRequest

The request for PartitionRead][google.spanner.v1.Spanner.PartitionRead]

PartitionResponse

The response for PartitionQuery][google.spanner.v1.Spanner.PartitionQuery] or PartitionRead][google.spanner.v1.Spanner.PartitionRead]

PlanNode

Node information for nodes appearing in a QueryPlan.plan_nodes][google.spanner.v1.QueryPlan.plan_nodes].

QueryPlan

Contains an ordered list of nodes appearing in the query plan.

ReadRequest

The request for Read][google.spanner.v1.Spanner.Read] and StreamingRead][google.spanner.v1.Spanner.StreamingRead].

ResultSet

Results from Read][google.spanner.v1.Spanner.Read] or ExecuteSql][google.spanner.v1.Spanner.ExecuteSql].

ResultSetMetadata

Metadata about a ResultSet][google.spanner.v1.ResultSet] or PartialResultSet][google.spanner.v1.PartialResultSet].

ResultSetStats

Additional statistics about a ResultSet][google.spanner.v1.ResultSet] or PartialResultSet][google.spanner.v1.PartialResultSet].

RollbackRequest

The request for Rollback][google.spanner.v1.Spanner.Rollback].

Session

A session in the Cloud Spanner API.

StructType

StructType defines the fields of a STRUCT][google.spanner.v1.TypeCode.STRUCT] type.

Transaction

A transaction.

TransactionOptions

TransactionOptions are used to specify different types of transactions.

For more info, see: https://cloud.google.com/spanner/docs/reference/rest/v1/Transaction

TransactionSelector

This message is used to select the transaction in which a Read][google.spanner.v1.Spanner.Read] or ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] call runs.

See TransactionOptions][google.spanner.v1.TransactionOptions] for more information about transactions.

Type

Type indicates the type of a Cloud Spanner value, as might be stored in a table cell or returned from an SQL query.

TypeCode

TypeCode is used as part of Type][google.spanner.v1.Type] to indicate the type of a Cloud Spanner value.

Each legal value of a type can be encoded to or decoded from a JSON value, using the encodings described below. All Cloud Spanner values can be null, regardless of type; null\ s are always encoded as a JSON null.