# Creating Data Catalog views using AWS Glue APIs Creating views using AWS Glue APIs You can use AWS Glue [CreateTable](https://docs.aws.amazon.com/glue/latest/webapi/API_CreateTable.html), and [UpdateTable](https://docs.aws.amazon.com/glue/latest/webapi/API_UpdateTable.html) APIs to create and update views in the Data Catalog. The `CreateTable` and `UpdateTable` operations have a new `TableInput` structure for `ViewDefinition`, while `SearchTables`, `GetTable`, `GetTables`, `GetTableVersion`, `GetTableVersions` operations provide the `ViewDefinition` in their output syntax for views. Additionally, there is a new `Status` field in the `GetTable` API output. Two new AWS Glue connections are available for validating the SQL dialect for each supported query engine, Amazon Athena and Amazon Redshift. The `CreateTable` and `UpdateTable` APIs are asynchronous when used with views. When these APIs are called with multiple SQL dialects, the call are validated with each engine to determine whether the dialect can be run on that engine, and if the resulting schema of the view from each dialect matches. The AWS Glue service uses these connections to make internal calls to the analytical engines. These calls simulates what the engine does to validate if a `CREATE VIEW` or `ALTER VIEW` SQL DDL were executed on the engine. If the SQL provided is valid, and the schemas match between view dialects, the AWS Glue API atomically commits the result. Atomicity allows views with multiple dialects to be created or altered without any downtime. **Topics** + [ # Creating AWS Glue connections to validate status ](views-api-usage-connection.md) + [ # Validating the view generation status ](views-api-usage-get-table.md) + [ # Asynchronous states and operations ](views-api-usage-async-states.md) + [ # View creation failure scenarios during asynchronous operations ](views-api-usage-errors.md) # Creating AWS Glue connections to validate status Creating a connection to validate the view creation status To create or update a AWS Glue Data Catalog view using the `CreateTable` or `UpdateTable` operations, you must create a new type of AWS Glue connection for validation, and provide it to the supported analytics engine. These connections are required to use Data Catalog views with Athena or Amazon Redshift. You can create these connections only using the AWS CLI, AWS SDKs, or AWS Glue APIs. You can't use the AWS Management Console to create the AWS Glue connection. **Note** If the view definer role and the role calling `CreateTable` or `UpdateTable` are different, then both of them require `glue:PassConnection` permission in their IAM policy statement. For more information, see the [create-connection](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/glue/create-connection.html) AWS CLI documentation. **AWS CLI command for creating a connection** The following is an AWS CLI command for creating a connection: ``` aws glue create-connection --region us-east-1 --endpoint-url https://glue.us-east-1.amazonaws.com --cli-input-json file:///root/path/to/create-connection.json ``` **AWS CLI input JSON** For Amazon Redshift: ``` { "CatalogId": "123456789012", "ConnectionInput": { "ConnectionType": "VIEW_VALIDATION_REDSHIFT", "Name": "views-preview-cluster-connection-2", "Description": "My first Amazon Redshift validation connection", "ConnectionProperties": { "DATABASE": "dev", "CLUSTER_IDENTIFIER": "glue-data-catalog-views-preview-cluster" } } } ``` For Amazon Athena: ``` { "CatalogId": "123456789012", "ConnectionInput": { "ConnectionType": "VIEW_VALIDATION_ATHENA", "Name": "views-preview-cluster-connection-3", "Description": "My first Amazon Athena validation connection", "ConnectionProperties": { "WORKGROUP_NAME": "workgroup-name" } } } ``` # Validating the view generation status When you run the `CreateTable` or `UpdateTable` operations, the `Status` field for the `GetTable` API output shows the details of the view creation status. For `create` requests where the table does not already exist, AWS Glue creates an empty table for the duration of the asynchronous process. When calling `GetTable`, you can pass an optional boolean flag `IncludeStatusDetails`, which shows diagnostic information about the request. In the case of a failure, this flag shows an error message with individual statuses of each dialect. Errors during view create, read, update, and delete (CRUD) operations can occur either during processing in the AWS Glue/Lake Formation service or during view SQL validation in Amazon Redshift or Athena. When an error occurs during validation in an engine, the AWS Glue service provides the error message that the engine returns. **Status fields** The following are the status fields: + Status: a generic status, which is agnostic to different types of jobs: + QUEUED + IN\$1PROGRESS + SUCCESS + FAILED + Action – Indicates which action was called on the table, currently only `CREATE` or `UPDATE` operations are available. Distinguishing between `UPDATE` and `CREATE` operations is important when working with views. The operation type determines how you should proceed with querying the tables. An `UPDATE` operation signifies that the table already exists in the Data Catalog. In this case, you can continue querying the previously created table without any issues. On the other hand, a `CREATE `operation indicates that the table has never been successfully created before. If a table is marked for `CREATE`, attempting to query it will fail because the table does not yet exist in the system. Therefore, it is essential to identify the operation type (UPDATE or CREATE) before attempting to query a table. + RequestedBy – The ARN of the user who requested the asynchronous change. + UpdatedBy – The ARN of the user who last manually alter the asynchronous change process, such as requesting a cancellation or modification. + Error – This field only appears when the state is **FAILED**. This is a parent level exception message. There may be different errors for each dialect. + ErrorCode – The type of exception. + ErrorMessage – a brief description of the exception. + RequestTime – an ISO 8601-formatted date string indicating the time that the change was initiated. + UpdateTime – an ISO 8601-formatted date string indicating the time that the state was last updated. # Asynchronous states and operations When you run a `glue:CreateTable` request, the asynchronous creation of the Data Catalog view begins. In the following sections, this document describes the `Status` of a AWS Glue view that is available in a `glue:GetTable` response. For brevity, this section omits the full response. ``` { "Table": { ... "Status": { ... "Action": "CREATE", "State": "QUEUED", } } } ``` Both of the above attributes represent important diagnostic information which indicates the state of the asynchronous operation, as well as the actions that can be performed on this view. Below are the possible values that these attributes can take on. 1. `Status.Action` 1. CREATE 1. UPDATE 1. `Status.State` 1. QUEUED 1. IN\$1PROGRESS 1. SUCCESS 1. FAILED It is also important to note that some updates on a Data Catalog view don't require an asynchronous operation. For example, one may wish to update the `Description` attribute of the table. Since this does not require any asynchronous operations, the resulting table metadata will not have any `Status`, and the attribute will be `NULL`. ``` { "Table": { ..., "Description": "I changed this attribute!" } } ``` Next, this topic explores how the above status information can impact operations that can be performed on an AWS Glue view. **glue:CreateTable** There are no changes for this API when compared to how `glue:CreateTable` functions for any Glue table. `CreateTable` may be called for any table name that does not already exist. **glue:UpdateTable** This operation cannot be performed on an AWS Glue view which has the following status information: 1. Action == CREATE and State == QUEUED 1. Action == CREATE and State == IN\$1PROGRESS 1. Action == CREATE and state == FAILED 1. Action == UPDATE and state == QUEUED 1. Action == UPDATE and state == IN\$1PROGRESS To summarize, you can update a Data Catalog view only when it meets the following requirements. 1. It has been successfully created for the first time. 1. Action == CREATE and State == SUCCESS 1. It has reached a terminal state after an asynchronous update operation. 1. Action == UPDATE and State == SUCCESS 1. Action == UPDATE and State == FAILED 1. It has a `NULL` state attribute as a result of a synchronous update. **glue:DeleteTable** There are no changes for this operation when compared to how `glue:DeleteTable` functions for any AWS Glue table. You can delete a Data Catalog view regardless of its state. **glue:GetTable** There are no changes for this operation when compared to how `glue:GetTable` functions for any AWS Glue table. However, you can't query a Data Catalog view from the analytical engines until it has been successfully created for the first time. `Action == CREATE and State == SUCCESS`. After you create a Data Catalog view successfully for the first time, you can query the view regardless of its status. **Note** All of the information in this section applies to all table read APIs such as `GetTable`, `GetTables`, and `SearchTables`. # View creation failure scenarios during asynchronous operations The following examples are representative of the types of errors that may result from `CreateTable` or `UpdateTable` view API calls. They are not exhaustive as the error surface of SQL query failures is quite large. ## Scenario 1: Amazon Redshift query failure The query provided for Amazon Redshift includes a misspelled table name can't be found in the Data Catalog during the validation. The resulting error is shown in the `Status` field in the `GetTable` response for the view. `GetTable` request: ``` { "CatalogId": "123456789012", "DatabaseName": "async-view-test-db", "TableInput": { "Name": "view-athena-redshift-72", "Description": "This is an atomic operation", "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ] }, "ViewDefinition": { "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-db\".\"table_1\"", "ValidationConnection": "athena-connection" }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table__1\";", "ValidationConnection": "redshift-connection" } ] } } } ``` `GetTable` response: ``` IncludeStatusDetails = FALSE { "Table": { "Name": "view-athena-redshift-72", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:39:19-07:00", "UpdateTime": "2024-07-11T11:39:19-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:39:19-07:00", "UpdateTime": "2024-07-11T11:40:06-07:00", "Action": "CREATE", "State": "FAILED" } } } IncludeStatusDetails = TRUE { "Table": { "Name": "view-athena-redshift-72", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:39:19-07:00", "UpdateTime": "2024-07-11T11:39:19-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:39:19-07:00", "UpdateTime": "2024-07-11T11:40:06-07:00", "Action": "CREATE", "State": "FAILED", "Error": { "ErrorCode": "QueryExecutionException", "ErrorMessage": "Error received during view SQL validation using a connection: [Connection Name: redshift-connection | Query Execution Id: ddb711d3-2415-4aa9-b251-6a76ab4f41b1 | Timestamp: Thu Jul 11 18:39:37 UTC 2024]: Redshift returned error for the statement: ERROR: AwsClientException: EntityNotFoundException from glue - Entity Not Found" }, "Details": { "RequestedChange": { "Name": "view-athena-redshift-72", "DatabaseName": "async-view-test-db", "Description": "This is an atomic operation", "Retention": 0, "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ], "Compressed": false, "NumberOfBuckets": 0, "SortColumns": [], "StoredAsSubDirectories": false }, "TableType": "VIRTUAL_VIEW", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "ViewDefinition": { "IsProtected": true, "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-db\".\"table_1\"", "IsStale": false }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table__1\";", "IsStale": false } ] }, "IsMultiDialectView": true }, "ViewValidations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewValidationText": "SELECT * FROM \"gdc-view-playground-db\".\"table_1\"", "UpdateTime": "2024-07-11T11:40:06-07:00", "State": "SUCCESS" }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewValidationText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table__1\";", "UpdateTime": "2024-07-11T11:39:37-07:00", "State": "FAILED", "Error": { "ErrorCode": "QueryExecutionException", "ErrorMessage": "Error received during view SQL validation using a connection: [Connection Name: redshift-connection | Query Execution Id: ddb711d3-2415-4aa9-b251-6a76ab4f41b1 | Timestamp: Thu Jul 11 18:39:37 UTC 2024]: Redshift returned error for the statement: ERROR: AwsClientException: EntityNotFoundException from glue - Entity Not Found" } } ] } } } } ``` ## Scenario 2: Invalid Amazon Redshift connection The Amazon Redshift connection in the following example is malformed because it refers to a Amazon Redshift database that doesn't exist in the provided cluster/serverless endpoint. Amazon Redshift is not able to validate the view and the `Status` field in the `GetTable` response shows the error (`"State": "FAILED"` from Amazon Redshift. `GetTable` request: ``` { "CatalogId": "123456789012", "DatabaseName": "async-view-test-db", "TableInput": { "Name": "view-athena-redshift-73", "Description": "This is an atomic operation", "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ] }, "ViewDefinition": { "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-db\".\"table_1\"", "ValidationConnection": "athena-connection" }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table_1\";", "ValidationConnection": "redshift-connection-malformed" } ] } } } ``` `GetTable` response: ``` IncludeStatusDetails = FALSE { "Table": { "Name": "view-athena-redshift-73", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:43:27-07:00", "UpdateTime": "2024-07-11T11:43:27-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:43:27-07:00", "UpdateTime": "2024-07-11T11:43:40-07:00", "Action": "CREATE", "State": "FAILED" } } } IncludeStatusDetails = TRUE { "Table": { "Name": "view-athena-redshift-73", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:43:27-07:00", "UpdateTime": "2024-07-11T11:43:27-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:43:27-07:00", "UpdateTime": "2024-07-11T11:43:40-07:00", "Action": "CREATE", "State": "FAILED", "Error": { "ErrorCode": "QueryExecutionException", "ErrorMessage": "Error received during view SQL validation using a connection: [Connection Name: redshift-connection-malformed | Query Execution Id: 69bfafd4-3d51-4cb0-9320-7ce5404b1809 | Timestamp: Thu Jul 11 18:43:38 UTC 2024]: Redshift returned error for the statement: FATAL: database \"devooo\" does not exist" }, "Details": { "RequestedChange": { "Name": "view-athena-redshift-73", "DatabaseName": "async-view-test-db", "Description": "This is an atomic operation", "Retention": 0, "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ], "Compressed": false, "NumberOfBuckets": 0, "SortColumns": [], "StoredAsSubDirectories": false }, "TableType": "VIRTUAL_VIEW", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "ViewDefinition": { "IsProtected": true, "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-db\".\"table_1\"", "IsStale": false }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table_1\";", "IsStale": false } ] }, "IsMultiDialectView": true }, "ViewValidations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewValidationText": "SELECT * FROM \"gdc-view-playground-db\".\"table_1\"", "UpdateTime": "2024-07-11T11:43:40-07:00", "State": "SUCCESS" }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewValidationText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table_1\";", "UpdateTime": "2024-07-11T11:43:38-07:00", "State": "FAILED", "Error": { "ErrorCode": "QueryExecutionException", "ErrorMessage": "Error received during view SQL validation using a connection: [Connection Name: redshift-connection-malformed | Query Execution Id: 69bfafd4-3d51-4cb0-9320-7ce5404b1809 | Time stamp: Thu Jul 11 18:43:38 UTC 2024]: Redshift returned error for the statement: FATAL: database \"devooo\" does not exist" } } ] } } } } ``` ## Scenario 3: Athena query failure The SQL for Athena here is invalid because the query misspells the database name. The Athena query validation catches this and the resulting error is surfaced through the `Status` object in a `GetTable` call. `GetTable` request: ``` { "CatalogId": "123456789012", "DatabaseName": "async-view-test-db", "TableInput": { "Name": "view-athena-redshift-70", "Description": "This is an atomic operation", "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ] }, "ViewDefinition": { "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT * FROM \"gdc--view-playground-db\".\"table_1\"", "ValidationConnection": "athena-connection" }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table_1\";", "ValidationConnection": "redshift-connection" } ] } } } ``` `GetTable` response: ``` IncludeStatusDetails = FALSE { "Table": { "Name": "view-athena-redshift-70", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:09:53-07:00", "UpdateTime": "2024-07-11T11:09:53-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:09:54-07:00", "UpdateTime": "2024-07-11T11:10:41-07:00", "Action": "CREATE", "State": "FAILED", } } } IncludeStatusDetails = TRUE { "Table": { "Name": "view-athena-redshift-70", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:09:53-07:00", "UpdateTime": "2024-07-11T11:09:53-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:09:54-07:00", "UpdateTime": "2024-07-11T11:10:41-07:00", "Action": "CREATE", "State": "FAILED", "Error": { "ErrorCode": "QueryExecutionException", "ErrorMessage": "Error received during view SQL validation using a connection: [Connection Name: athena-connection | Query Execution Id: d9bb1e6d-ce26-4b35-8276-8a199af966aa | Timestamp: Thu Jul 11 18:10: 41 UTC 2024]: Athena validation FAILED: {ErrorCategory: 2,ErrorType: 1301,Retryable: false,ErrorMessage: line 1:118: Schema 'gdc--view-playground-db' does not exist}" }, "Details": { "RequestedChange": { "Name": "view-athena-redshift-70", "DatabaseName": "async-view-test-db", "Description": "This is an atomic operation", "Retention": 0, "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ], "Compressed": false, "NumberOfBuckets": 0, "SortColumns": [], "StoredAsSubDirectories": false }, "TableType": "VIRTUAL_VIEW", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "ViewDefinition": { "IsProtected": true, "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT * FROM \"gdc--view-playground-db\".\"table_1\"", "IsStale": false }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table_1\";", "IsStale": false } ] }, "IsMultiDialectView": true }, "ViewValidations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewValidationText": "SELECT * FROM \"gdc--view-playground-db\".\"table_1\"", "UpdateTime": "2024-07-11T11:10:41-07:00", "State": "FAILED", "Error": { "ErrorCode": "QueryExecutionException", "ErrorMessage": "Error received during view SQL validation using a connection: [Connection Name: athena-connection | Query Execution Id: d9bb1e6d-ce26-4b35-8276-8a199af966aa | Timestamp: Thu J ul 11 18:10:41 UTC 2024]: Athena validation FAILED: {ErrorCategory: 2,ErrorType: 1301,Retryable: false,ErrorMessage: line 1:118: Schema 'gdc--view-playground-db' does not exist}" } }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewValidationText": "SELECT * FROM \"gdc-view-playground-external-schema\".\"table_1\";", "UpdateTime": "2024-07-11T11:10:41-07:00", "State": "SUCCESS" } ] } } } } ``` ## Scenario 4: Mismatch storage descriptors The SQL provided for the Athena dialect selects `col1` and `col2` while the SQL for Redshift selects only `col1`. This leads to a storage descriptor mismatch error. `GetTable` request: ``` { "CatalogId": "123456789012", "DatabaseName": "async-view-test-db", "TableInput": { "Name": "view-athena-redshift-71", "Description": "This is an atomic operation", "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ] }, "ViewDefinition": { "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT col1, col2 FROM \"gdc-view-playground-db\".\"table_1\"", "ValidationConnection": "athena-connection" }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT col1 FROM \"gdc-view-playground-external-schema\".\"table_1\";", "ValidationConnection": "redshift-connection" } ] } } } ``` `GetTable` response: ``` IncludeStatusDetails = FALSE { "Table": { "Name": "view-athena-redshift-71", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:22:02-07:00", "UpdateTime": "2024-07-11T11:22:02-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:22:02-07:00", "UpdateTime": "2024-07-11T11:23:19-07:00", "Action": "CREATE", "State": "FAILED" } } } IncludeStatusDetails = TRUE { "Table": { "Name": "view-athena-redshift-71", "DatabaseName": "async-view-test-db", "Description": "", "CreateTime": "2024-07-11T11:22:02-07:00", "UpdateTime": "2024-07-11T11:22:02-07:00", "Retention": 0, "ViewOriginalText": "", "ViewExpandedText": "", "TableType": "", "CreatedBy": "arn:aws:iam::123456789012:user/zcaisse", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "IsMultiDialectView": false, "Status": { "RequestedBy": "arn:aws:iam::123456789012:user/zcaisse", "UpdatedBy": "arn:aws:iam::123456789012:user/zcaisse", "RequestTime": "2024-07-11T11:22:02-07:00", "UpdateTime": "2024-07-11T11:23:19-07:00", "Action": "CREATE", "State": "FAILED", "Error": { "ErrorCode": "InvalidInputException", "ErrorMessage": "Engine and existing storage descriptor mismatch" }, "Details": { "RequestedChange": { "Name": "view-athena-redshift-71", "DatabaseName": "async-view-test-db", "Description": "This is an atomic operation", "Retention": 0, "StorageDescriptor": { "Columns": [ { "Name": "col1", "Type": "int" }, { "Name": "col2", "Type": "string" }, { "Name": "col3", "Type": "double" } ], "Compressed": false, "NumberOfBuckets": 0, "SortColumns": [], "StoredAsSubDirectories": false }, "TableType": "VIRTUAL_VIEW", "IsRegisteredWithLakeFormation": false, "CatalogId": "123456789012", "IsRowFilteringEnabled": false, "VersionId": "-1", "DatabaseId": "", "ViewDefinition": { "IsProtected": true, "Definer": "arn:aws:iam::123456789012:role/GDCViewDefiner", "SubObjects": [ "arn:aws:glue:us-east-1:123456789012:table/gdc-view-playground-db/table_1" ], "Representations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewOriginalText": "SELECT col1, col2 FROM \"gdc-view-playground-db\".\"table_1\"", "IsStale": false }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewOriginalText": "SELECT col1 FROM \"gdc-view-playground-external-schema\".\"table_1\";", "IsStale": false } ] }, "IsMultiDialectView": true }, "ViewValidations": [ { "Dialect": "ATHENA", "DialectVersion": "3", "ViewValidationText": "SELECT col1, col2 FROM \"gdc-view-playground-db\".\"table_1\"", "UpdateTime": "2024-07-11T11:23:19-07:00", "State": "FAILED", "Error": { "ErrorCode": "InvalidInputException", "ErrorMessage": "Engine and existing storage descriptor mismatch" } }, { "Dialect": "REDSHIFT", "DialectVersion": "1.0", "ViewValidationText": "SELECT col1 FROM \"gdc-view-playground-external-schema\".\"table_1\";", "UpdateTime": "2024-07-11T11:22:49-07:00", "State": "FAILED", "Error": { "ErrorCode": "InvalidInputException", "ErrorMessage": "Engine and existing storage descriptor mismatch" } } ] } } } } ```