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<h1><a href="spanner_v1.html">Cloud Spanner API</a> . <a href="spanner_v1.projects.html">projects</a> . <a href="spanner_v1.projects.instances.html">instances</a> . <a href="spanner_v1.projects.instances.databases.html">databases</a></h1>
<h2>Instance Methods</h2>
<p class="toc_element">
<code><a href="spanner_v1.projects.instances.databases.operations.html">operations()</a></code>
</p>
<p class="firstline">Returns the operations Resource.</p>
<p class="toc_element">
<code><a href="spanner_v1.projects.instances.databases.sessions.html">sessions()</a></code>
</p>
<p class="firstline">Returns the sessions Resource.</p>
<p class="toc_element">
<code><a href="#create">create(parent, body, x__xgafv=None)</a></code></p>
<p class="firstline">Creates a new Cloud Spanner database and starts to prepare it for serving.</p>
<p class="toc_element">
<code><a href="#dropDatabase">dropDatabase(database, x__xgafv=None)</a></code></p>
<p class="firstline">Drops (aka deletes) a Cloud Spanner database.</p>
<p class="toc_element">
<code><a href="#get">get(name, x__xgafv=None)</a></code></p>
<p class="firstline">Gets the state of a Cloud Spanner database.</p>
<p class="toc_element">
<code><a href="#getDdl">getDdl(database, x__xgafv=None)</a></code></p>
<p class="firstline">Returns the schema of a Cloud Spanner database as a list of formatted</p>
<p class="toc_element">
<code><a href="#getIamPolicy">getIamPolicy(resource, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Gets the access control policy for a database resource.</p>
<p class="toc_element">
<code><a href="#list">list(parent, pageSize=None, pageToken=None, x__xgafv=None)</a></code></p>
<p class="firstline">Lists Cloud Spanner databases.</p>
<p class="toc_element">
<code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
<p class="firstline">Retrieves the next page of results.</p>
<p class="toc_element">
<code><a href="#setIamPolicy">setIamPolicy(resource, body, x__xgafv=None)</a></code></p>
<p class="firstline">Sets the access control policy on a database resource.</p>
<p class="toc_element">
<code><a href="#testIamPermissions">testIamPermissions(resource, body, x__xgafv=None)</a></code></p>
<p class="firstline">Returns permissions that the caller has on the specified database resource.</p>
<p class="toc_element">
<code><a href="#updateDdl">updateDdl(database, body, x__xgafv=None)</a></code></p>
<p class="firstline">Updates the schema of a Cloud Spanner database by</p>
<h3>Method Details</h3>
<div class="method">
<code class="details" id="create">create(parent, body, x__xgafv=None)</code>
<pre>Creates a new Cloud Spanner database and starts to prepare it for serving.
The returned long-running operation will
have a name of the format `<database_name>/operations/<operation_id>` and
can be used to track preparation of the database. The
metadata field type is
CreateDatabaseMetadata. The
response field type is
Database, if successful.
Args:
parent: string, Required. The name of the instance that will serve the new database.
Values are of the form `projects/<project>/instances/<instance>`. (required)
body: object, The request body. (required)
The object takes the form of:
{ # The request for CreateDatabase.
"extraStatements": [ # An optional list of DDL statements to run inside the newly created
# database. Statements can create tables, indexes, etc. These
# statements execute atomically with the creation of the database:
# if there is an error in any statement, the database is not created.
"A String",
],
"createStatement": "A String", # Required. A `CREATE DATABASE` statement, which specifies the ID of the
# new database. The database ID must conform to the regular expression
# `a-z*[a-z0-9]` and be between 2 and 30 characters in length.
# If the database ID is a reserved word or if it contains a hyphen, the
# database ID must be enclosed in backticks (`` ` ``).
}
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # This resource represents a long-running operation that is the result of a
# network API call.
"metadata": { # Service-specific metadata associated with the operation. It typically
# contains progress information and common metadata such as create time.
# Some services might not provide such metadata. Any method that returns a
# long-running operation should document the metadata type, if any.
"a_key": "", # Properties of the object. Contains field @type with type URL.
},
"error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
# different programming environments, including REST APIs and RPC APIs. It is
# used by [gRPC](https://github.com/grpc). The error model is designed to be:
#
# - Simple to use and understand for most users
# - Flexible enough to meet unexpected needs
#
# # Overview
#
# The `Status` message contains three pieces of data: error code, error
# message, and error details. The error code should be an enum value of
# google.rpc.Code, but it may accept additional error codes if needed. The
# error message should be a developer-facing English message that helps
# developers *understand* and *resolve* the error. If a localized user-facing
# error message is needed, put the localized message in the error details or
# localize it in the client. The optional error details may contain arbitrary
# information about the error. There is a predefined set of error detail types
# in the package `google.rpc` that can be used for common error conditions.
#
# # Language mapping
#
# The `Status` message is the logical representation of the error model, but it
# is not necessarily the actual wire format. When the `Status` message is
# exposed in different client libraries and different wire protocols, it can be
# mapped differently. For example, it will likely be mapped to some exceptions
# in Java, but more likely mapped to some error codes in C.
#
# # Other uses
#
# The error model and the `Status` message can be used in a variety of
# environments, either with or without APIs, to provide a
# consistent developer experience across different environments.
#
# Example uses of this error model include:
#
# - Partial errors. If a service needs to return partial errors to the client,
# it may embed the `Status` in the normal response to indicate the partial
# errors.
#
# - Workflow errors. A typical workflow has multiple steps. Each step may
# have a `Status` message for error reporting.
#
# - Batch operations. If a client uses batch request and batch response, the
# `Status` message should be used directly inside batch response, one for
# each error sub-response.
#
# - Asynchronous operations. If an API call embeds asynchronous operation
# results in its response, the status of those operations should be
# represented directly using the `Status` message.
#
# - Logging. If some API errors are stored in logs, the message `Status` could
# be used directly after any stripping needed for security/privacy reasons.
"message": "A String", # A developer-facing error message, which should be in English. Any
# user-facing error message should be localized and sent in the
# google.rpc.Status.details field, or localized by the client.
"code": 42, # The status code, which should be an enum value of google.rpc.Code.
"details": [ # A list of messages that carry the error details. There is a common set of
# message types for APIs to use.
{
"a_key": "", # Properties of the object. Contains field @type with type URL.
},
],
},
"done": True or False, # If the value is `false`, it means the operation is still in progress.
# If `true`, the operation is completed, and either `error` or `response` is
# available.
"response": { # The normal response of the operation in case of success. If the original
# method returns no data on success, such as `Delete`, the response is
# `google.protobuf.Empty`. If the original method is standard
# `Get`/`Create`/`Update`, the response should be the resource. For other
# methods, the response should have the type `XxxResponse`, where `Xxx`
# is the original method name. For example, if the original method name
# is `TakeSnapshot()`, the inferred response type is
# `TakeSnapshotResponse`.
"a_key": "", # Properties of the object. Contains field @type with type URL.
},
"name": "A String", # The server-assigned name, which is only unique within the same service that
# originally returns it. If you use the default HTTP mapping, the
# `name` should be a resource name ending with `operations/{unique_id}`.
}</pre>
</div>
<div class="method">
<code class="details" id="dropDatabase">dropDatabase(database, x__xgafv=None)</code>
<pre>Drops (aka deletes) a Cloud Spanner database.
Args:
database: string, Required. The database to be dropped. (required)
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # A generic empty message that you can re-use to avoid defining duplicated
# empty messages in your APIs. A typical example is to use it as the request
# or the response type of an API method. For instance:
#
# service Foo {
# rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
# }
#
# The JSON representation for `Empty` is empty JSON object `{}`.
}</pre>
</div>
<div class="method">
<code class="details" id="get">get(name, x__xgafv=None)</code>
<pre>Gets the state of a Cloud Spanner database.
Args:
name: string, Required. The name of the requested database. Values are of the form
`projects/<project>/instances/<instance>/databases/<database>`. (required)
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # A Cloud Spanner database.
"state": "A String", # Output only. The current database state.
"name": "A String", # Required. The name of the database. Values are of the form
# `projects/<project>/instances/<instance>/databases/<database>`,
# where `<database>` is as specified in the `CREATE DATABASE`
# statement. This name can be passed to other API methods to
# identify the database.
}</pre>
</div>
<div class="method">
<code class="details" id="getDdl">getDdl(database, x__xgafv=None)</code>
<pre>Returns the schema of a Cloud Spanner database as a list of formatted
DDL statements. This method does not show pending schema updates, those may
be queried using the Operations API.
Args:
database: string, Required. The database whose schema we wish to get. (required)
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # The response for GetDatabaseDdl.
"statements": [ # A list of formatted DDL statements defining the schema of the database
# specified in the request.
"A String",
],
}</pre>
</div>
<div class="method">
<code class="details" id="getIamPolicy">getIamPolicy(resource, body=None, x__xgafv=None)</code>
<pre>Gets the access control policy for a database resource.
Returns an empty policy if a database exists but does
not have a policy set.
Authorization requires `spanner.databases.getIamPolicy` permission on
resource.
Args:
resource: string, REQUIRED: The Cloud Spanner resource for which the policy is being retrieved. The format is `projects/<project ID>/instances/<instance ID>` for instance resources and `projects/<project ID>/instances/<instance ID>/databases/<database ID>` for database resources. (required)
body: object, The request body.
The object takes the form of:
{ # Request message for `GetIamPolicy` method.
}
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # Defines an Identity and Access Management (IAM) policy. It is used to
# specify access control policies for Cloud Platform resources.
#
#
# A `Policy` consists of a list of `bindings`. A `binding` binds a list of
# `members` to a `role`, where the members can be user accounts, Google groups,
# Google domains, and service accounts. A `role` is a named list of permissions
# defined by IAM.
#
# **JSON Example**
#
# {
# "bindings": [
# {
# "role": "roles/owner",
# "members": [
# "user:[email protected]",
# "group:[email protected]",
# "domain:google.com",
# "serviceAccount:[email protected]"
# ]
# },
# {
# "role": "roles/viewer",
# "members": ["user:[email protected]"]
# }
# ]
# }
#
# **YAML Example**
#
# bindings:
# - members:
# - user:[email protected]
# - group:[email protected]
# - domain:google.com
# - serviceAccount:[email protected]
# role: roles/owner
# - members:
# - user:[email protected]
# role: roles/viewer
#
#
# For a description of IAM and its features, see the
# [IAM developer's guide](https://cloud.google.com/iam/docs).
"bindings": [ # Associates a list of `members` to a `role`.
# `bindings` with no members will result in an error.
{ # Associates `members` with a `role`.
"role": "A String", # Role that is assigned to `members`.
# For example, `roles/viewer`, `roles/editor`, or `roles/owner`.
"members": [ # Specifies the identities requesting access for a Cloud Platform resource.
# `members` can have the following values:
#
# * `allUsers`: A special identifier that represents anyone who is
# on the internet; with or without a Google account.
#
# * `allAuthenticatedUsers`: A special identifier that represents anyone
# who is authenticated with a Google account or a service account.
#
# * `user:{emailid}`: An email address that represents a specific Google
# account. For example, `[email protected]` .
#
#
# * `serviceAccount:{emailid}`: An email address that represents a service
# account. For example, `[email protected]`.
#
# * `group:{emailid}`: An email address that represents a Google group.
# For example, `[email protected]`.
#
#
# * `domain:{domain}`: The G Suite domain (primary) that represents all the
# users of that domain. For example, `google.com` or `example.com`.
#
"A String",
],
"condition": { # Represents an expression text. Example: # The condition that is associated with this binding.
# NOTE: An unsatisfied condition will not allow user access via current
# binding. Different bindings, including their conditions, are examined
# independently.
#
# title: "User account presence"
# description: "Determines whether the request has a user account"
# expression: "size(request.user) > 0"
"location": "A String", # An optional string indicating the location of the expression for error
# reporting, e.g. a file name and a position in the file.
"expression": "A String", # Textual representation of an expression in
# Common Expression Language syntax.
#
# The application context of the containing message determines which
# well-known feature set of CEL is supported.
"description": "A String", # An optional description of the expression. This is a longer text which
# describes the expression, e.g. when hovered over it in a UI.
"title": "A String", # An optional title for the expression, i.e. a short string describing
# its purpose. This can be used e.g. in UIs which allow to enter the
# expression.
},
},
],
"etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
# prevent simultaneous updates of a policy from overwriting each other.
# It is strongly suggested that systems make use of the `etag` in the
# read-modify-write cycle to perform policy updates in order to avoid race
# conditions: An `etag` is returned in the response to `getIamPolicy`, and
# systems are expected to put that etag in the request to `setIamPolicy` to
# ensure that their change will be applied to the same version of the policy.
#
# If no `etag` is provided in the call to `setIamPolicy`, then the existing
# policy is overwritten blindly.
"version": 42, # Deprecated.
}</pre>
</div>
<div class="method">
<code class="details" id="list">list(parent, pageSize=None, pageToken=None, x__xgafv=None)</code>
<pre>Lists Cloud Spanner databases.
Args:
parent: string, Required. The instance whose databases should be listed.
Values are of the form `projects/<project>/instances/<instance>`. (required)
pageSize: integer, Number of databases to be returned in the response. If 0 or less,
defaults to the server's maximum allowed page size.
pageToken: string, If non-empty, `page_token` should contain a
next_page_token from a
previous ListDatabasesResponse.
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # The response for ListDatabases.
"nextPageToken": "A String", # `next_page_token` can be sent in a subsequent
# ListDatabases call to fetch more
# of the matching databases.
"databases": [ # Databases that matched the request.
{ # A Cloud Spanner database.
"state": "A String", # Output only. The current database state.
"name": "A String", # Required. The name of the database. Values are of the form
# `projects/<project>/instances/<instance>/databases/<database>`,
# where `<database>` is as specified in the `CREATE DATABASE`
# statement. This name can be passed to other API methods to
# identify the database.
},
],
}</pre>
</div>
<div class="method">
<code class="details" id="list_next">list_next(previous_request, previous_response)</code>
<pre>Retrieves the next page of results.
Args:
previous_request: The request for the previous page. (required)
previous_response: The response from the request for the previous page. (required)
Returns:
A request object that you can call 'execute()' on to request the next
page. Returns None if there are no more items in the collection.
</pre>
</div>
<div class="method">
<code class="details" id="setIamPolicy">setIamPolicy(resource, body, x__xgafv=None)</code>
<pre>Sets the access control policy on a database resource.
Replaces any existing policy.
Authorization requires `spanner.databases.setIamPolicy`
permission on resource.
Args:
resource: string, REQUIRED: The Cloud Spanner resource for which the policy is being set. The format is `projects/<project ID>/instances/<instance ID>` for instance resources and `projects/<project ID>/instances/<instance ID>/databases/<database ID>` for databases resources. (required)
body: object, The request body. (required)
The object takes the form of:
{ # Request message for `SetIamPolicy` method.
"policy": { # Defines an Identity and Access Management (IAM) policy. It is used to # REQUIRED: The complete policy to be applied to the `resource`. The size of
# the policy is limited to a few 10s of KB. An empty policy is a
# valid policy but certain Cloud Platform services (such as Projects)
# might reject them.
# specify access control policies for Cloud Platform resources.
#
#
# A `Policy` consists of a list of `bindings`. A `binding` binds a list of
# `members` to a `role`, where the members can be user accounts, Google groups,
# Google domains, and service accounts. A `role` is a named list of permissions
# defined by IAM.
#
# **JSON Example**
#
# {
# "bindings": [
# {
# "role": "roles/owner",
# "members": [
# "user:[email protected]",
# "group:[email protected]",
# "domain:google.com",
# "serviceAccount:[email protected]"
# ]
# },
# {
# "role": "roles/viewer",
# "members": ["user:[email protected]"]
# }
# ]
# }
#
# **YAML Example**
#
# bindings:
# - members:
# - user:[email protected]
# - group:[email protected]
# - domain:google.com
# - serviceAccount:[email protected]
# role: roles/owner
# - members:
# - user:[email protected]
# role: roles/viewer
#
#
# For a description of IAM and its features, see the
# [IAM developer's guide](https://cloud.google.com/iam/docs).
"bindings": [ # Associates a list of `members` to a `role`.
# `bindings` with no members will result in an error.
{ # Associates `members` with a `role`.
"role": "A String", # Role that is assigned to `members`.
# For example, `roles/viewer`, `roles/editor`, or `roles/owner`.
"members": [ # Specifies the identities requesting access for a Cloud Platform resource.
# `members` can have the following values:
#
# * `allUsers`: A special identifier that represents anyone who is
# on the internet; with or without a Google account.
#
# * `allAuthenticatedUsers`: A special identifier that represents anyone
# who is authenticated with a Google account or a service account.
#
# * `user:{emailid}`: An email address that represents a specific Google
# account. For example, `[email protected]` .
#
#
# * `serviceAccount:{emailid}`: An email address that represents a service
# account. For example, `[email protected]`.
#
# * `group:{emailid}`: An email address that represents a Google group.
# For example, `[email protected]`.
#
#
# * `domain:{domain}`: The G Suite domain (primary) that represents all the
# users of that domain. For example, `google.com` or `example.com`.
#
"A String",
],
"condition": { # Represents an expression text. Example: # The condition that is associated with this binding.
# NOTE: An unsatisfied condition will not allow user access via current
# binding. Different bindings, including their conditions, are examined
# independently.
#
# title: "User account presence"
# description: "Determines whether the request has a user account"
# expression: "size(request.user) > 0"
"location": "A String", # An optional string indicating the location of the expression for error
# reporting, e.g. a file name and a position in the file.
"expression": "A String", # Textual representation of an expression in
# Common Expression Language syntax.
#
# The application context of the containing message determines which
# well-known feature set of CEL is supported.
"description": "A String", # An optional description of the expression. This is a longer text which
# describes the expression, e.g. when hovered over it in a UI.
"title": "A String", # An optional title for the expression, i.e. a short string describing
# its purpose. This can be used e.g. in UIs which allow to enter the
# expression.
},
},
],
"etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
# prevent simultaneous updates of a policy from overwriting each other.
# It is strongly suggested that systems make use of the `etag` in the
# read-modify-write cycle to perform policy updates in order to avoid race
# conditions: An `etag` is returned in the response to `getIamPolicy`, and
# systems are expected to put that etag in the request to `setIamPolicy` to
# ensure that their change will be applied to the same version of the policy.
#
# If no `etag` is provided in the call to `setIamPolicy`, then the existing
# policy is overwritten blindly.
"version": 42, # Deprecated.
},
}
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # Defines an Identity and Access Management (IAM) policy. It is used to
# specify access control policies for Cloud Platform resources.
#
#
# A `Policy` consists of a list of `bindings`. A `binding` binds a list of
# `members` to a `role`, where the members can be user accounts, Google groups,
# Google domains, and service accounts. A `role` is a named list of permissions
# defined by IAM.
#
# **JSON Example**
#
# {
# "bindings": [
# {
# "role": "roles/owner",
# "members": [
# "user:[email protected]",
# "group:[email protected]",
# "domain:google.com",
# "serviceAccount:[email protected]"
# ]
# },
# {
# "role": "roles/viewer",
# "members": ["user:[email protected]"]
# }
# ]
# }
#
# **YAML Example**
#
# bindings:
# - members:
# - user:[email protected]
# - group:[email protected]
# - domain:google.com
# - serviceAccount:[email protected]
# role: roles/owner
# - members:
# - user:[email protected]
# role: roles/viewer
#
#
# For a description of IAM and its features, see the
# [IAM developer's guide](https://cloud.google.com/iam/docs).
"bindings": [ # Associates a list of `members` to a `role`.
# `bindings` with no members will result in an error.
{ # Associates `members` with a `role`.
"role": "A String", # Role that is assigned to `members`.
# For example, `roles/viewer`, `roles/editor`, or `roles/owner`.
"members": [ # Specifies the identities requesting access for a Cloud Platform resource.
# `members` can have the following values:
#
# * `allUsers`: A special identifier that represents anyone who is
# on the internet; with or without a Google account.
#
# * `allAuthenticatedUsers`: A special identifier that represents anyone
# who is authenticated with a Google account or a service account.
#
# * `user:{emailid}`: An email address that represents a specific Google
# account. For example, `[email protected]` .
#
#
# * `serviceAccount:{emailid}`: An email address that represents a service
# account. For example, `[email protected]`.
#
# * `group:{emailid}`: An email address that represents a Google group.
# For example, `[email protected]`.
#
#
# * `domain:{domain}`: The G Suite domain (primary) that represents all the
# users of that domain. For example, `google.com` or `example.com`.
#
"A String",
],
"condition": { # Represents an expression text. Example: # The condition that is associated with this binding.
# NOTE: An unsatisfied condition will not allow user access via current
# binding. Different bindings, including their conditions, are examined
# independently.
#
# title: "User account presence"
# description: "Determines whether the request has a user account"
# expression: "size(request.user) > 0"
"location": "A String", # An optional string indicating the location of the expression for error
# reporting, e.g. a file name and a position in the file.
"expression": "A String", # Textual representation of an expression in
# Common Expression Language syntax.
#
# The application context of the containing message determines which
# well-known feature set of CEL is supported.
"description": "A String", # An optional description of the expression. This is a longer text which
# describes the expression, e.g. when hovered over it in a UI.
"title": "A String", # An optional title for the expression, i.e. a short string describing
# its purpose. This can be used e.g. in UIs which allow to enter the
# expression.
},
},
],
"etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
# prevent simultaneous updates of a policy from overwriting each other.
# It is strongly suggested that systems make use of the `etag` in the
# read-modify-write cycle to perform policy updates in order to avoid race
# conditions: An `etag` is returned in the response to `getIamPolicy`, and
# systems are expected to put that etag in the request to `setIamPolicy` to
# ensure that their change will be applied to the same version of the policy.
#
# If no `etag` is provided in the call to `setIamPolicy`, then the existing
# policy is overwritten blindly.
"version": 42, # Deprecated.
}</pre>
</div>
<div class="method">
<code class="details" id="testIamPermissions">testIamPermissions(resource, body, x__xgafv=None)</code>
<pre>Returns permissions that the caller has on the specified database resource.
Attempting this RPC on a non-existent Cloud Spanner database will
result in a NOT_FOUND error if the user has
`spanner.databases.list` permission on the containing Cloud
Spanner instance. Otherwise returns an empty set of permissions.
Args:
resource: string, REQUIRED: The Cloud Spanner resource for which permissions are being tested. The format is `projects/<project ID>/instances/<instance ID>` for instance resources and `projects/<project ID>/instances/<instance ID>/databases/<database ID>` for database resources. (required)
body: object, The request body. (required)
The object takes the form of:
{ # Request message for `TestIamPermissions` method.
"permissions": [ # REQUIRED: The set of permissions to check for 'resource'.
# Permissions with wildcards (such as '*', 'spanner.*', 'spanner.instances.*') are not allowed.
"A String",
],
}
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # Response message for `TestIamPermissions` method.
"permissions": [ # A subset of `TestPermissionsRequest.permissions` that the caller is
# allowed.
"A String",
],
}</pre>
</div>
<div class="method">
<code class="details" id="updateDdl">updateDdl(database, body, x__xgafv=None)</code>
<pre>Updates the schema of a Cloud Spanner database by
creating/altering/dropping tables, columns, indexes, etc. The returned
long-running operation will have a name of
the format `<database_name>/operations/<operation_id>` and can be used to
track execution of the schema change(s). The
metadata field type is
UpdateDatabaseDdlMetadata. The operation has no response.
Args:
database: string, Required. The database to update. (required)
body: object, The request body. (required)
The object takes the form of:
{ # Enqueues the given DDL statements to be applied, in order but not
# necessarily all at once, to the database schema at some point (or
# points) in the future. The server checks that the statements
# are executable (syntactically valid, name tables that exist, etc.)
# before enqueueing them, but they may still fail upon
# later execution (e.g., if a statement from another batch of
# statements is applied first and it conflicts in some way, or if
# there is some data-related problem like a `NULL` value in a column to
# which `NOT NULL` would be added). If a statement fails, all
# subsequent statements in the batch are automatically cancelled.
#
# Each batch of statements is assigned a name which can be used with
# the Operations API to monitor
# progress. See the
# operation_id field for more
# details.
"statements": [ # DDL statements to be applied to the database.
"A String",
],
"operationId": "A String", # If empty, the new update request is assigned an
# automatically-generated operation ID. Otherwise, `operation_id`
# is used to construct the name of the resulting
# Operation.
#
# Specifying an explicit operation ID simplifies determining
# whether the statements were executed in the event that the
# UpdateDatabaseDdl call is replayed,
# or the return value is otherwise lost: the database and
# `operation_id` fields can be combined to form the
# name of the resulting
# longrunning.Operation: `<database>/operations/<operation_id>`.
#
# `operation_id` should be unique within the database, and must be
# a valid identifier: `a-z*`. Note that
# automatically-generated operation IDs always begin with an
# underscore. If the named operation already exists,
# UpdateDatabaseDdl returns
# `ALREADY_EXISTS`.
}
x__xgafv: string, V1 error format.
Allowed values
1 - v1 error format
2 - v2 error format
Returns:
An object of the form:
{ # This resource represents a long-running operation that is the result of a
# network API call.
"metadata": { # Service-specific metadata associated with the operation. It typically
# contains progress information and common metadata such as create time.
# Some services might not provide such metadata. Any method that returns a
# long-running operation should document the metadata type, if any.
"a_key": "", # Properties of the object. Contains field @type with type URL.
},
"error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
# different programming environments, including REST APIs and RPC APIs. It is
# used by [gRPC](https://github.com/grpc). The error model is designed to be:
#
# - Simple to use and understand for most users
# - Flexible enough to meet unexpected needs
#
# # Overview
#
# The `Status` message contains three pieces of data: error code, error
# message, and error details. The error code should be an enum value of
# google.rpc.Code, but it may accept additional error codes if needed. The
# error message should be a developer-facing English message that helps
# developers *understand* and *resolve* the error. If a localized user-facing
# error message is needed, put the localized message in the error details or
# localize it in the client. The optional error details may contain arbitrary
# information about the error. There is a predefined set of error detail types
# in the package `google.rpc` that can be used for common error conditions.
#
# # Language mapping
#
# The `Status` message is the logical representation of the error model, but it
# is not necessarily the actual wire format. When the `Status` message is
# exposed in different client libraries and different wire protocols, it can be
# mapped differently. For example, it will likely be mapped to some exceptions
# in Java, but more likely mapped to some error codes in C.
#
# # Other uses
#
# The error model and the `Status` message can be used in a variety of
# environments, either with or without APIs, to provide a
# consistent developer experience across different environments.
#
# Example uses of this error model include:
#
# - Partial errors. If a service needs to return partial errors to the client,
# it may embed the `Status` in the normal response to indicate the partial
# errors.
#
# - Workflow errors. A typical workflow has multiple steps. Each step may
# have a `Status` message for error reporting.
#
# - Batch operations. If a client uses batch request and batch response, the
# `Status` message should be used directly inside batch response, one for
# each error sub-response.
#
# - Asynchronous operations. If an API call embeds asynchronous operation
# results in its response, the status of those operations should be
# represented directly using the `Status` message.
#
# - Logging. If some API errors are stored in logs, the message `Status` could
# be used directly after any stripping needed for security/privacy reasons.
"message": "A String", # A developer-facing error message, which should be in English. Any
# user-facing error message should be localized and sent in the
# google.rpc.Status.details field, or localized by the client.
"code": 42, # The status code, which should be an enum value of google.rpc.Code.
"details": [ # A list of messages that carry the error details. There is a common set of
# message types for APIs to use.
{
"a_key": "", # Properties of the object. Contains field @type with type URL.
},
],
},
"done": True or False, # If the value is `false`, it means the operation is still in progress.
# If `true`, the operation is completed, and either `error` or `response` is
# available.
"response": { # The normal response of the operation in case of success. If the original
# method returns no data on success, such as `Delete`, the response is
# `google.protobuf.Empty`. If the original method is standard
# `Get`/`Create`/`Update`, the response should be the resource. For other
# methods, the response should have the type `XxxResponse`, where `Xxx`
# is the original method name. For example, if the original method name
# is `TakeSnapshot()`, the inferred response type is
# `TakeSnapshotResponse`.
"a_key": "", # Properties of the object. Contains field @type with type URL.
},
"name": "A String", # The server-assigned name, which is only unique within the same service that
# originally returns it. If you use the default HTTP mapping, the
# `name` should be a resource name ending with `operations/{unique_id}`.
}</pre>
</div>
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