============================================================================== Simba JDBC Driver with SQL Connector for Google BigQuery Release Notes ============================================================================== The release notes provide details of enhancements, features, known issues, and workflow changes in Simba JDBC Driver for Google BigQuery 1.2.11, as well as the version history. 1.2.11 ======================================================================== Released 2020-08-28 Enhancements & New Features * [GBQJ-373] Avro library update The driver now uses Avro version 1.10. Previously, the driver used version 1.9. * [GBQJ-376] Updated HT API configuration For anonymous tables, utilizing storage API is free and the driver now ignores the HT API ON/OFF flag in the configuration. Resolved Issues The following issues have been resolved in Simba JDBC Driver for Google BigQuery 1.2.11. * [GBQJ-366] In some cases, when calling executeQuery() for a result set, the driver returns an error. * [GBQJ-371] When retrying failed queries, the driver encounters a rate limit. This issue has been resolved. The driver now retries failed queries using an exponential back-off mechanism. * [GBQJ-375] The driver ignores the StringColumnLength property. * [GBQJ-378] The DSI_MULT_RESULT_SETS connection property returns false instead of true. * [GBQJ-383] When using prepared statements to set null parameters for string datatypes, the driver returns a null pointer exception. Known Issues The following are known issues that you may encounter due to limitations in the data source, the driver, or an application. * TRACE level logs incorrectly contain stack trace for function entrances. When logging at the TRACE level (LogLevel=6), function entrance logs are generated for each function that is called. These logs incorrectly include a stack trace. * Query prefixes are not supported. The driver does not support query prefixes. To specify whether your query statements are to be processed using standard SQL or legacy BigQuery SQL, you must configure the QueryDialect connection property. By default, QueryDialect is set to "SQL" so that the driver uses standard SQL syntax. To use BigQuery SQL instead, set the property to "BIG_QUERY". * Support for ODBC Escape Sequences is limited. The only supported ODBC Escape Sequences are Scalar Functions of the form {fn func(args)} if func is supported by the Google BigQuery data source engine. * When casting data, you must specify the data type according to Google BigQuery standards. When casting data to a specific data type, you must use the corresponding data type name shown in the "Casting" section of the Query Reference: https://cloud.google.com/bigquery/sql-reference/functions-and-operators#casting. For example, to cast the "salary" column to the INTEGER type, you must specify INT64 instead of INTEGER: SELECT position, CAST(salary AS INT64) from Employee Workflow Changes ============================================================= The following changes may disrupt established workflows for the driver. 1.2.2 ------------------------------------------------------------------------ * Removed support for JDBC 4.1 (Java 7) Beginning with this release, the driver no longer supports JDBC 4.1 (Java 7). For a list of supported JDBC versions, see the Installation and Configuration Guide. Version History ============================================================== 1.2.8 ------------------------------------------------------------------------ Released 2020-07-17 Enhancements & New Features * [GBQJ-351] Location restrictions for datasets You can now specify a location for the driver, so that the driver only queries datasets in that location. To do this, set the Location property to the name of the dataset location. For more information, see the Installation and Configuration Guide. Resolved Issues The following issues have been resolved in Simba JDBC Driver for Google BigQuery 1.2.8. * [GBQJ-359] In some cases, queries that include a newline before certain DDL or DML keywords cause an exception. * [GBQJ-361] The getCatalogs() metadata function returns only the first 50 projects. This issue has been resolved. The getCatalogs() function now returns all projects. 1.2.4 ------------------------------------------------------------------------ Released 2020-05-11 Enhancements & New Features * [GBQJ-321] Support for BigQuery scripting The driver now supports BigQuery scripting for Standard SQL. For more information, see "Scripting in Standard SQL" in the BigQuery documentation: https://cloud.google.com/bigquery/docs/reference/standard-sql/scripting * [GBQJ-344] Support for additional passthrough query properties You can now pass a property through to the server by using the QueryProperties connection URL. For more information, see the Installation and Configuration Guide. Resolved Issues The following issues have been resolved in Simba JDBC Driver for Google BigQuery 1.2.4. * [GBQJ-336] In some cases, complex queries cause the driver to terminate unexpectedly. * [GBQJ-354] In some cases, if you include comments between DDL statements, the statement executes correctly but the driver generates an empty result set. * [GBQJ-357] If you use getProcedureColumns() to retrieve Array, Struct, or Geography types, the driver terminates unexpectedly. * [GBQJ-354] In some cases, if you include comments between DDL statements, the statement executes correctly but the driver generates an empty result set. * [GBQJ-310] When using the Numeric data type, the REST API does not include leading zeros. This issue has been resolved. The driver now uses the default BigQuery scale of 9 for Numeric data. * [GBQJ-310] When using the Boolean or Datetime data types, there are discrepancies between flat and nested columns. This issue has been resolved. The format of Boolean and Datetime data in nested columns now matches the format of flat columns. 1.2.3 ------------------------------------------------------------------------ Released 2020-03-27 Enhancements & New Features * [GBQJ-325] Support for DDL ALTER TABLE SET OPTIONS statements. The driver now supports ALTER TABLE SET OPTIONS statements in DDL. For more information, see "ALTER TABLE SET OPTIONS" in the Google BigQuery documentation: https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#alter_table_set_options_statement * [GBQJ-302] Support for catalog metadata API calls for persistent functions. The driver now supports catalog metadata API calls for persistent functions. * [GBQJ-324] Support for CREATE, CREATE OR REPLACE, DROP statements for FUNCTION and PROCEDURE. The driver now supports these statements. * [GBQJ-327] Support for JDBC Batch Execute The driver now supports JDBC Batch Execute. Resolved Issues The following issue has been resolved in Simba JDBC Driver for Google BigQuery 1.2.3. * [GBQJ-334] Temporary tables never expire This issue has been resolved. Now, temporary tables expire after one hour by default. You can change this expiration time by setting the new LargeResultsDatasetExpirationTime connection property. For more information, see the Installation and Configuration Guide. 1.2.2 ------------------------------------------------------------------------ Released 2019-09-23 Enhancements & New Features * [GBQJ-303] Avro library update The driver now uses Avro version 1.9. As a result of this update, the driver no longer supports JDBC 4.1. For more information, see "Workflow Changes" in this document. Resolved Issues The following issues have been resolved in Simba JDBC Driver for Google BigQuery 1.2.2. * [GBJQ-298] Some data types are returned differently in nested ARRAY and STRUCT formats than they are in flat data. This issue has been resolved. The following data types in nested ARRAY and STRUCT formats are now returned differently to match the representation that would be expected if they were in flat columns: - BYTES - DATE - DATETIME - NUMERIC - TIME - TIMESTAMP Note: The Storage API returns NUMERIC data in a nested ARRAY or STRUCT with trailing zeroes. The REST API trims the trailing zeroes. * [GBQJ-309] The driver incorrectly rounds BigDecimal parameter values that are bound to prepared statements. 1.2.1 ------------------------------------------------------------------------ Released 2019-05-15 Enhancements & New Features * [GBQJ-291] Updated Google Cloud BigQuery Storage API The driver has been updated to use version 0.85 of the Google Cloud BigQuery Storage API. 1.2.0 ------------------------------------------------------------------------ Released 2019-03-01 Enhancements & New Features * [GBJQ-269] Support for the BigQuery Storage API The driver can now use BigQuery Storage API to more efficiently process large result sets. For more information, see the Installation and Configuration Guide. * [GBQJ-273] Updated OAuth URLs The URLs used by the driver for OAuth authentication have been updated to remain current. Resolved Issues The following issues were resolved in Simba JDBC Driver for Google BigQuery 1.2.0. * [GBQJ-284] In some cases, when executing a query that takes a long time to complete, the query fails and the driver returns a GeneralException error. This issue has been resolved. The driver now returns a more informative error message if a long-running query times out. * [GBQJ-274] In some cases, the driver cannot retrieve arrays with primitive types. ==============================================================================