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Snap Type:

Write

Description:

This Snap is used to execute multiple Redshift SQL statements sequentially inside of a single BEGIN and END transaction for each input document. If an SQL statement fails, subsequent SQL statements are not executed and error output goes to the error view (if the corresponding option is selected). If all statements are successful, all output results go to the output view. Data can be written to both output and error view if using multiple input documents. Use this Snap to perform updates to Redshift data that would otherwise be done in a Stored Procedure.

Select statements that return data results, and transaction sql statements such as begin, end, commit and rollback are not supported.

ETL Transformations & Data Flow

This Snap enables the following ETL operations/flows:

The Snap executes a sequence of multiple Redshift DDL commands in a sequential order as specified in the Executions section and the result will be written to the output view which contains results from individual queries that have been executed from the provided properties. If any submitted query fails, the Snap will throw an exception and rollback changes from prior queries.

Input & Output:

Input: The Snap can have zero to one input document to trigger multi-executions of SQL statements and any necessary field data values if expressions are used in the SQL executions.
Output: The output results will be written to the output view.

Upstream & Downstream Snaps

Expected Upstream Snaps: Upstream Snap is not required - the MultiExecute Snap will execute once if no input view is defined. However, if there is an upstream Snap, it should only produce documents to trigger the MultiExecute Snap. For example, if zero documents are produced by an upstream Snap, the MultiExecute SQL will not execute. If two documents are produced, the MultiExecute will execute twice, once for each input document (the original input document data will be preserved in the output views)
Expected Downstream Snaps: Applicable downstream Snaps to handle the possible Redshift SQL data results emitted on the output and error view can be used.

A BEGIN and END statement are prepended and appended, respectively, to the MultiExecute SQL automatically by the Snap. The result of these statements is added to the output and error views.

Prerequisites:

None

Limitations and Known Issues:

Works in Ultra Tasks.
SELECT statements are not accepted for execution.
Does not support transaction, commit, and rollback operations.

If you use the PostgreSQL driver (org.postgresql.Driver) with the Redshift Snap Pack, it could result in errors if the data type provided to the Snap does not match the data type in the Redshift table schema. Either use the Redshift driver (com.amazon.redshift.jdbc42.Driver) or use the correct data type in the input document to resolve these errors.

Configurations:

Account & Access

This Snap uses account references created on the Accounts page of SnapLogic Manager to handle access to this endpoint. See Redshift Account for information on setting up this type of account.

Views

Input	This Snap can have at most one input view.
Output	This Snap has at most one output view.
Error	This Snap has at most one error view and produces zero or more documents in the view.

Troubleshooting:

[None]

Settings

Label

Required. The name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your pipeline.

Executions

Required. Specifies the SQL statement to execute on the server.

Examples:

email = 'you@example.com' or email = $email
emp=$emp

create table stage_table as select * from leads l where l.value not in (select h.value from leads_hist h);
insert into leads_hist select * from stage_table;
drop table stage_table;

"EMPNO=$EMPNO and ENAME=$EMPNAME"
"emp='" + $emp + "'"
"EMPNO=" + $EMPNO + " and ENAME='" + $EMPNAME+ "'"

Caution

Using expressions that join strings together to create SQL queries or conditions has a potential SQL injection risk and hence unsafe. Ensure that you understand all implications and risks involved before using concatenation of strings with '=' Expression enabled.

Single quotes in values must be escaped

Any relational database (RDBMS) treats single quotes (') as special symbols. So, single quotes in the data or values passed through a DML query may cause the Snap to fail when the query is executed. Ensure that you pass two consecutive single quotes in place of one within these values to escape the single quote through these queries.

For example:

If String	To pass this value	Use
Has no single quotes	Schaum Series	`'`Schaum Series`'`
Contains single quotes	`O'Reilly's Publication`	'`O''Reilly''s Publication`'

Default value: [None]

Snap execution

Select one of the three modes in which the Snap executes. Available options are:

Validate & Execute: Performs limited execution of the Snap, and generates a data preview during Pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during Pipeline runtime.
Execute only: Performs full execution of the Snap during Pipeline execution without generating preview data.
Disabled: Disables the Snap and all Snaps that are downstream from it.

Troubleshooting

Error	Reason	Resolution
`type "e" does not exist`	This issue occurs due to incompatibilities with the recent upgrade in the Postgres JDBC drivers.	Download the latest 4.1 Amazon Redshift driver here and use this driver in your Redshift Account configuration and retry running the Pipeline.

Examples

Basic Use Case

The following pipeline describes how the Snap functions as a standalone Snap in a pipeline (a Select Snap is used here to display the output preview of the records added as displayed in the second image below):

An example of MultiExecute properties, in this case, the SQL is using expressions:

The successful output after two input documents:

The error output preview:

Typical Snap Configurations

The key configuration of the Snap lies in how you pass the SQL statement to execute a function:

Without Expression: Directly passing the required SQL statements in the Redshift Multi Execute Snap. Literal statements (without SQL parameters or SnapLogic expressions):
- With SQL parameters:

With Expressions
It is possible to pass values to the Redshift Multi Execute Snap using expression language as well. In the example below, the values are passed using a query from an upstream snap and pipeline parameters. Both these methods are demonstrated in detail below:
- Query from an upstream Snap: The Redshift Multi Execute Snap receives values from the upstream JSON Generator Snap.

The Multi Execute Snap executes the SQL statements as passed using the upstream JSON Generator Snap:

The Redshift Select Snap displays the out preview with the added records:

- Pipeline Parameter: Pipeline parameter set to pass the required SQL Statement to the Multi Execute Snap.

In the below Snap Executions settings, the values for the fields are passed using the pipeline parameters.

Advanced Use Case

The pipeline shows how to execute multiple SQL statements to insert records into the table, emp_RS, using the Redshift Multi Execute Snap. We also use the Redshift Select Snap to read the table to which the records are added. Here, we pass the values using the upstream and also dynamically, by defining the pipeline parameters respectively.

1. Edit the JSON Generator Snap and input the upstream data to be passed into the table, emp_RS.

The output preview from the JSON Generator Snap is as below:

2. Set the pipeline parameters to be passed dynamically:

3. In the Redshift - Multi Execute Snap, the SQL statement executions are as below:

4. The output preview of the Redshift - Multi Execute Snap has the status of the executions (result) displayed sequentially between the 'BEGIN' and the 'END' execution transaction:

5. View the table "public"."emp_RS" to which we added the records using the Redshift - Select Snap:

6. Successful execution of the pipeline displays the below output preview in a JSON or a Table format respectively:

Downloads

Important steps to successfully reuse Pipelines

Download and import the pipeline into the SnapLogic application.
Configure Snap accounts as applicable.
Provide pipeline parameters as applicable.

	File	Modified
Labels No labels Preview View	File Redshift Multi Execute_basic-usecase.slp	Aug 24, 2017 by Aparna Tayi
Labels No labels Preview View	File Redshift Multi Execute _BasicUseCase.slp	Aug 24, 2017 by Aparna Tayi
Labels No labels Preview View	File RedShift_Multi_Execute_Input_Parameters.slp	Aug 24, 2017 by Aparna Tayi

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Snap Pack History

Click to view/expand

Release	Snap Pack Version	Date	Type	Updates
February 2025	440patches30071	14 Mar 2025	Latest	Fixed the Null Pointer Exception (NPE) issue in the Redshift Snaps. Now, these Snaps display an exception error instead of NPE when the URL properties (key and value) and either key or value are empty.
February 2025	main29887	12 Feb 2025	Stable	Updated and certified against the current SnapLogic Platform release.
November 2024	main29029	13 Nov 2024	Stable	Updated and certified against the current SnapLogic Platform release.
August 2024	main27765	21 Aug 2024	Stable	Upgraded the `org.json.json` library from v20090211 to v20240303, which is fully backward compatible. Upgraded the JDBC driver for the Redshift Snap Pack to v2.1.0.29 to address the SQL Injection vulnerabilities. Pipelines using the Redshift Snaps are not impacted after the driver upgrade, because the latest JDBC driver is fully backward compatible.
May 2024	437patches26634	10 Jun 2024	Latest	Fixed an issue with Redshift - Execute Snap that produced logs causing node crashes.
May 2024	main26341	08 May 2024	Stable	Updated the Delete Condition (Truncates a Table if empty) field in the Redshift - Delete Snap to Delete condition (deletes all records from a table if left blank) to indicate that all entries will be deleted from the table when this field is blank, but no truncate operation is performed.
February 2024	main25112	14 Feb 2024	Stable	Updated and certified against the current SnapLogic Platform release.
November 2023	main23721	08 Nov 2023	Stable	Updated and certified against the current SnapLogic Platform release.
August 2023	main22460	16 Aug 2023	Stable	The Redshift-Bulk Load and Redshift-Bulk Upsert Snaps now support expression enablers for the Additional options field that enables you to use parameters. The Redshift - Execute Snap now includes a new Query type field. When Auto is selected, the Snap tries to determine the query type automatically. Behavior Change Starting with `version main22460`, in the Redshift Select Snap: When you create a table in Redshift, by default, all column names are displayed in lowercase in the output. When you enter column names in uppercase in the Output Field property, the column names are displayed in lowercase in the output.
May 2023	main21015	10 May 2023	Stable	Upgraded with the latest SnapLogic Platform release.
February 2023	432patches20500	17 Apr 2023	Latest	The Redshift Account no longer fails when a URL is entered in the JDBC URL field and no driver is specified.
February 2023	432patches20166	28 Mar 2023	Latest	Updated the description for S3 Security Token field as follows: Specify the S3 security token part of AWS Security Token Service (STS) authentication. It is not required unless a particular S3 credential is configured to require it.
February 2023	432patches20101	09 Mar 2023	Latest	The JDBC driver class for Redshift accounts is bundled with the com.amazon.redshift.jdbc42.Driver as the default driver. This upgrade is backward-compatible. The existing pipelines will continue to work as expected and the new pipelines will use the Redshift Driver as the default driver. SnapLogic will support providing fixes for the issues you might encounter with accounts that use the PostgreSQL driver only until November 2023. After November 2023, SnapLogic will not provide support for the issues with the PostgreSQL driver. Therefore, we recommend you to migrate from the PostgreSQL JDBC driver to the Redshift JDBC driver. Learn more about migrating from the PostgreSQL JDBC Driver to the Amazon Redshift Driver. (432patches20101) The Instance type option in the Redshift Bulk Load Snap enables you to use the Amazon EC2 R6a instance. This property appears only when the parallelism value is greater than one.
February 2023	432patches20035	07 Mar 2023	Latest	The Redshift Snaps that earlier supported only Redshift Cluster now support Redshift Serverless as well. With Redshift Serverless, you can avoid setting up and managing data warehouse infrastructure when you run or scale analytics.
February 2023	main19844	09 Feb 2023	Stable	Upgraded with the latest SnapLogic Platform release.
November 2022	main18944	10 Nov 2022	Stable	The Redshift - Insert Snap now creates the target table only from the table metadata of the second input view when the following conditions are met: The Create table if not present checkbox is selected. The target table does not exist. The table metadata is provided in the second input view.
August 2022	430patches17189	19 Aug 2022	Latest	The Redshift - Bulk Load and Redshift - Bulk Upsert Snaps now display relevant error message when the AWS security token is expired. The Redshift Account now validates correctly when the S3 bucket is blank.
August 2022	main17386	11 Aug 2022	Stable	The Redshift accounts support: Expression enabler to pass values from Pipeline parameters. Security Token for S3 bucket external staging.
4.29 Patch	429patches16908	28 Jul 2022	Latest	Enhanced the Redshift accounts with the following: Expression enabler to pass values from Pipeline parameters. Support for Security Token for S3 bucket external staging. Fixed an issue with Redshift - Execute Snap where the Snap failed when the query contained comments with single or double quotes in it. Now the Pipeline executes without any error if the query contains a comment.
4.29 Patch	429patches15806	08 Jun 2022	Latest	Fixed an issue with Redshift Account and Redshift SSL Account where the Redshift Snaps failed when the S3 Secret key or S3 Access-key ID contained special characters, such as +.
4.29	main15993	14 May 2022	Stable	Upgraded with the latest SnapLogic Platform release.
4.28	main14627	12 Feb 2022	Stable	Updated the label for Delete Condition to Delete Condition (Truncates Table if empty) in the Redshift Delete Snap.
4.27 Patch	427patches12999	20 Dec 2021	Latest	Fixed an issue with the Redshift Bulk Load Snap, where the temporary files in S3 were not deleted for aborted or interrupted Pipelines.
4.27 Patch	427patches12999	23 Nov 2021	Latest	Revised the field labels in Redshift Cross-Account IAM Role Account from: Cross-Account IAM Role ARN (Writing to Bucket) to S3 Bucket Write IAM Role ARN Cross-Account IAM properties (S3 Bucket) to S3 Bucket Read IAM Role. Removed Key/Trust Store Password and Key Alias fields in Redshift SSL and Redshift Cross-Account IAM Role SSL accounts.
4.27	main12833	13 Nov 2021	Stable	Enhanced the Redshift - Execute Snap to invoke stored procedures.
4.26	main11181	14 Aug 2021	Stable	Upgraded with the latest SnapLogic Platform release.
4.25 Patch	425patches11008	04 Aug 2021	Latest	Updated the AWS SDK from version 1.11.688 to 1.11.1010 in the Redshift Snap Pack and added a custom SnapLogic User Agent header value.
4.25	main9554	08 May 2021	Stable	Upgraded with the latest SnapLogic Platform release.
4.24	main8556	13 Feb 2021	Stable	Enhanced the Redshift - Select Snap to return only the selected output fields or columns in the output schema (second output view) using the Fetch Output Fields In Schema checkbox. If the Output Fields field is empty all the columns are visible. Added two accounts, Redshift Cross-Account IAM Role Account and Redshift Cross-Account IAM Role SSL Account to support Cross-Account IAM Role in Redshift Snaps.
4.23	main7430	14 Nov 2020	Stable	Fixed an issue with the Redshift Bulk Load Snap that fails while displaying a `Failed to commit transaction` error.
4.22	main6403	12 Sep 2020	Stable	Upgraded with the latest SnapLogic Platform release.
4.21 Patch	421patches6144	20 Jul 2020	Latest	Fixed the following issues with DB Snaps: The connection thread waits indefinitely causing the subsequent connection requests to become unresponsive. Connection leaks occur during Pipeline execution.
4.21 Patch	MULTIPLE8841	19 May 2020	Latest	Fixed the connection issue in Database Snaps by detecting and closing open connections after the Snap execution ends.
4.21	snapsmrc542	09 May 2020	Stable	Upgraded with the latest SnapLogic Platform release.
4.20 Patch	db/redshift8774		Latest	Fixed the Redshift - Execute Snap that hangs if the SQL statement field contains only a comment ("-- comment").
4.20	snapsmrc535	08 Feb 2020	Stable	Upgraded with the latest SnapLogic Platform release.
4.19 Patch	db/redshift8410	13 Dec 2019	Latest	Fixed an issue with the Redshift - Update Snap wherein the Snap is unable to perform operations when: An expression is used in the Update condition property. Input data contain the character '?'.
4.19	snaprsmrc528	14 Nov 2019	Stable	Upgraded with the latest SnapLogic Platform release.
4.18 Patch	db/redshift8043	14 Oct 2019	Latest	Enhanced the Snap Pack to support AWS SDK 1.11.634 to fix the NullPointerException issue in the AWS SDK. This issue occurred in AWS-related Snaps that had HTTP or HTTPS proxy configured without a username and/or password.
4.18 Patch	MULTIPLE7884	09 Oct 2019	Latest	Fixed an issue with the PostgreSQL grammar to better handle the single quote characters.
4.18 Patch	MULTIPLE7778	28 Aug 2019	Latest	Updated the AWS SDK library version to default to Signature Version 4 Signing process for API requests across all regions.
4.18	snapsmrc523	10 Aug 2019	Stable	Upgraded with the latest SnapLogic Platform release.
4.17 Patch	db/redshift7433	20 Jun 2019	Latest	Fixed an issue with the Redshift Bulk Load Snap wherein the Snap fails to copy the entire data from source to the Redshift table without any statements being aborted.
4.17	ALL7402	11 Jun 2019	Latest	Pushed automatic rebuild of the latest version of each Snap Pack to SnapLogic UAT and Elastic servers.
4.17	snapsmrc515	11 Jun 2019	Latest	Fixed an issue with the Redshift Execute Snap wherein the Snap would send the input document to the output view even if the Pass through field is not selected in the Snap configuration. With this fix, the Snap sends the input document to the output view, under the key original, only if you select the Pass through field. Added the Snap Execution field to all Standard-mode Snaps. In some Snaps, this field replaces the existing Execute during preview checkbox.
4.16 Patch	db/redshift6821	22 Feb 2019	Latest	Fixed an issue with the Lookup Snap passing data simultaneously to output and error views when some values contained spaces at the end.
4.16	snapsmrc508	16 Feb 2019	Stable	Upgraded with the latest SnapLogic Platform release.
4.15 Patch	db/redshift6286	06 Dec 2018	Latest	Fixed an issue with the Bulk Upsert Snap wherein there was no output for any input schema.
4.15 Patch	db/redshift6334	05 Dec 2018	Latest	Replaced Max idle time and Idle connection test period properties with Max life time and Idle Timeout properties, respectively, in the Account configuration. The new properties fix the connection release issues that were occurring due to default/restricted DB Account settings.
4.15	snapsmrc500	15 Dec 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.14 Patch	db/redshift5786	19 Sep 2018	Latest	Fixed an issue wherein the Redshift Upload snap logged the access and secret keys without encryption in the error logs. The keys are now masked.
4.14 Patch	db/redshift5667	13 Aug 2018	Latest	Added "Validate input data" property in the Redshift Bulk Load Snap to enable users to troubleshoot input data schema. Enhanced a check to identify whether the Provided Query in the Redshift Execute Snap is of read or write type.
4.14	snapsmrc490	11 Aug 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.13 Patch	db/redshift/5303	21 Jun 2018	Latest	Added a new property "Validate input data" in the Redshift Bulk Load Snap to help users troubleshoot the input data schema.
4.13 Patch	db/redshift5186	13 May 2018	Latest	Fixed the Bulk Load and Unload Snaps wherein the KMS encryption type property is failing with validation error.
4.13	snapsmrc486	12 May 2018	Stable	Added KMS encryption support to these Snaps: Redshift Unload, Redshift Bulk Load, Redshift Bulk Upsert, and Redshift S3 Upsert.
4.12 Patch	db/redshift5027	13 Apr 2018	Latest	Fixed an issue wherein the Redshift Snaps timeout and fail to retrieve a database connection.
4.12 Patch	MULTIPLE4967	05 Apr 2018	Latest	Provided an interim fix for an issue with the Redshift accounts by re-registering the driver for each account validation. The final fix is being shipped in a separate build.
4.12 Patch	MULTIPLE4744	27 Feb 2018	Latest	Added support for Redshift grammar to recognize window functions as being part of the query statement.
4.12	snapsmrc480	17 Feb 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.11 Patch	db/redshift4589	26 Jan 2018	Latest	Fixed an issue when creating a Redshift table via the second/metadata input view for the Redshift Bulk Load Snap.
4.11	snapsmrc465	11 Nov 2017	Stable	Added SSL support to the Configuring Redshift Accounts.
4.10 Patch	db/redshift4115	12 Oct 2017	Latest	The Upsert or BulkUpdate/BulkLoad shall not execute and produce output when no inputView has been provided.
4.10 Patch	redshift3936	14 Sep 2017	Latest	Addressed an issue in Redshift Execute with a Select that hangs after extracting 13 million in the morning or 30 million in the evening
4.10	snapsmrc414	12 Aug 2017	Stable	Added Auto commit property to the Select and Execute Snaps at the Snap level to support overriding of the Auto commit property at the Account level.
4.9.0 Patch	redshift3229	07 Jul 2017	Latest	Addressed an issue in Redshift Multiple Execute where INSERT INTO SELECT statement generated a 'transaction, commit and rollback statements are not supported' exception.
4.9.0 Patch	redshift3073	01 Jun 2017	Latest	Fixed an issue regarding connection not closed after login failure; Expose autocommit for "Select into" statement in PostgreSQL Execute Snap and Redshift Execute Snap
4.9	snapsmrc405	13 May 2017	Stable	Updated the Bulk Load, Bulk Upsert and S3 Upsert Snaps with the properties Vacuum type & Vacuum threshold (%) (replaced the original Vacuum property). Update the S3 Upsert Snap with the properties, IAM role and Server-side encryption to support data upsert across two VPCs. Added support for the Redshift driver under the account setting for JDBC jars.
4.8.0 Patch	redshift2852	10 Apr 2017	Latest	Addressed an issue with Redshift Insert failing with 'casts smallint as varchar' Addressed an issue with Redshift Bulk Upsert fails to drop temp table
4.8.0 Patch	redshift2799	28 Mar 2017	Latest	Addressed an issue with Redshift Snaps with the default driver failing with could not load JDBC driver for url file. Added the properties, JDBC Driver Class, JDBC jars and JDBC Url to enable the users to upload the Redshift JDBC drivers that can override the default driver.
4.8.0 Patch	redshift2758	27 Mar 2017	Latest	Potential fix for JDBC deadlock issue.
4.8.0 Patch	redshift2713	01 Mar 2017	Latest	Fixed Redshift Snap Pack rendering dates that are one hour off from the date returned by database query for non-UTC Snaplexes
4.8.0 Patch	redshift2697	22 Feb 2017	Latest	Addresses an issue where some changes made in the platform patch MRC294 to improve performance caused Snaps in the listed Snap Packs to fail.
4.8	snapsmrc398	11 Feb 2017	Stable	Redshift MultiExecute Snap introduced in this release. Redshift Account: Info tab added to accounts. Database accounts now invalidate connection pools if account properties are modified and login attempts fail. Info tab added to accounts. Database accounts now invalidate connection pools if account properties are modified and login attempts fail.
4.7.0 Patch	redshift2434	10 Jan 2017	Latest	Replaced newSingleThreadExecutor() with a fixed thread pool.
4.7.0 Patch	redshift2387	06 Jan 2017	Latest	Addressed an issue in Redshift Bulk Load Snap where Load Empty String was setting not working after release.
4.7.0 Patch	redshift2223	05 Dec 2016	Latest	Auto-commit is turned off automatically for SELECT
4.7.0 Patch	redshift2201	28 Nov 2016	Latest	Fixed an issue for database Select Snaps regarding Limit rows not supporting an empty string from a pipeline parameter.
4.7	snapsmrc382	23 Nov 2016	Stable	Updated the Redshift Snap Account Settings with the IAM properties that include AWS account ID , IAM role name, and Region name. Redshift Bulk Load Snap updated with the properties IAM Role & Server-side encryption. Redshift Bulk Upsert Snap updated with the properties Load empty strings, IAM Role & Server-side encryption. Updated the Redshift Upsert Snap with Load empty strings property. Updated the Redshift Unload Snap with the property IAM role.
4.6	snapsmrc362	13 Aug 2016	Stable	Redshift Execute Snap enhanced to fully support SQL statements with/without expressions & SQL bind variables. Resolved an issue in Redshift Execute Snap that caused errors when executing a command Select current_schemas(true). Resolved an issues in Redshift Execute Snap that caused errors when a Select * from <table_name> into statement was executed. Enhanced error reporting in Redshift Bulk Load Snap to provided appropriate resolution messages.
4.5.1	redshift1621	18 May 2016	Latest	Redshift S3 Upsert Snap introduced in this release. Resolved an issue that occurred while inserting mismatched data type values in Redshift Insert Snap.
4.5	snapsmrc344	18 May 2016	Stable	Resolved an issue in Redshift Bulk Upsert Snap that occurred when purging temp tables. Resolved an issue in Redshift Upload/Upsert Snap that occurred when using IAM credentials in an EC2 instance with an S3 bucket.
4.4.1	NA	18 Mar 2016	Latest	Resolved an issue with numeric precision when trying to use create table if not present in Redshift Insert Snap.
4.4	NA	13 Feb 2016	Stable	Upgraded with the latest SnapLogic Platform release.
4.3.2	NA	15 Jan 2016	Stable	Redshift Select Where clause property now has expression support. Redshift Update Update condition property now has expression support. Resolved an issue with Redshift Select Table metadata being empty if the casing is different from the suggested one for table name
4.3	NA	24 Oct 2015	Stable	Table List Snap: A new option, Compute table graph, now lets you determine whether or not to generate dependents data into the output. Redshift Unload Snap Parallel property now explicitly adds 'PARALLEL [OFF\|FALSE]' to the UNLOAD query.
4.2	NA	07 Aug 2015	Latest	Resolved an issue where Redshift SCD2 Snap historized the current row when no Cause-historization fields had changed. Ignore empty result added to Execute and Select Snaps. The option will not any document to the output view for select statements. Resolved an issue with Redshift Select Snap returning a Date object for DATE column data type instead of a LocalDate object. Resolved an issue in RedShift SCD2 failing to close database cursor connection. Resolved an issue with Redshift Lookup Snap not handling values with spaces in the prefix. Updated driver not distributed with the Redshift Snap Pack. Output fields table property added to Select Snap. Resolved an issue with Redshift - Bulk Loader incorrectly writing to wrong location on S3 and disable data compression not working Resolved an issue in Execute and Select Snaps where the output document was the same as the input document if the query produces no data. When there is no result from the SELECT query, the input document will be passed through to the output view as a value to the 'original' key. The new property Pass through with true default.
NA	NA	02 May 2015	NA	Redshift Account: Enhanced error messaging Redshift SCD2: Bug fixes with compound keys RedShift Lookup: Bug fixes on lookup failures; Pass-though on no lookup match property added to allow you to pass the input document through to the output view when there is no lookup matching.

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