v1.4.26

Sling v1.4.26 (2025-11-06T13:15:03Z)

See https://github.com/slingdata-io/sling-cli/ for more details.

v1.4.25

Sling v1.4.25 (2025-11-06T11:06:26Z)

See https://github.com/slingdata-io/sling-cli/ for more details.

v1.4.24

Sling v1.4.24 (2025-10-17T16:09:36Z)

See https://github.com/slingdata-io/sling-cli/ for more details.

v1.4.23

Sling v1.4.23 (2025-09-26T18:42:03Z)

• MongoDB collection listing enhancements
• StarRocks validation fixes
• Cross-platform build support via GoReleaser
• Comprehensive test suite additions
• Various bugs and fixes

v1.4.22

Sling v1.4.22 (2025-09-15T14:17:53Z)

• Fix Arrow Decimal truncation issue.

v1.4.21

Sling v1.4.21 (2025-09-15T11:11:26Z)

New Features & Enhancements:

1. MongoDB ObjectID Support - Added proper ObjectID filtering capabilities for MongoDB connections with automatic hex string conversion
2. ClickHouse Improvements - Enhanced merge operations with retry logic for "Too many unfinished mutations" errors and lightweight delete support for v23+
3. Prometheus Enhancements - Better transform support and column type handling for Prometheus data sources
4. API Spec Fetching - New FetchSpec function for loading API specifications
5. Databricks Volume Management - Improved volume path handling and creation logic

Bug Fixes:

1. SQL Server Money Type - Fixed precision issues with MONEY and SMALLMONEY data types when replicating to StarRocks
2. Decimal Precision Handling - Improved decimal column typing with better precision and scale calculations
3. Snowflake Stage Management - Better internal stage creation and validation
4. Redshift Credentials - Enhanced AWS credential handling for COPY operations including support for IAM roles
5. PostgreSQL Timeout Support - Added statement_timeout parameter support

v1.4.20

Sling v1.4.20 (2025-09-03T12:34:56Z)

Database and Connection Improvements

• New Database Support: Added Arrow Flight SQL (FlightSQL) connection type
• Connection URL Handling: Improved SFTP/FTP connection URL parsing with proper path handling
• Decimal Precision Handling: Enhanced decimal number processing with better precision and scale management

File Processing Enhancements

• XML File Support: Added comprehensive XML file parsing capabilities with custom decoder
• File Splitting: Improved file splitting functionality with better chunking and manifest generation
• Parquet Processing: Enhanced Parquet file handling with DuckDB integration

Data Type and Processing Improvements

• Decimal Type Refactoring: Switched from float64 to decimal.Decimal for better precision
• String Parsing Optimization: Refactored string parsing with better type detection and caching
• Number Precision: Enhanced handling of high-precision numbers and scientific notation

Database Operation Updates

• Merge Operations: Renamed "Upsert" operations to "Merge" across multiple database connectors
• PostgreSQL Merge Strategy: Implemented sophisticated merge strategy using temporary tables
• Transaction Handling: Improved transaction management for bulk operations

API Specification Enhancements

• Sling Platform API Updates: Enhanced API specifications with improved pagination logic and state management
• Stripe API Improvements: Fixed pagination issues with better handling of starting_after and ending_before parameters
• Dynamic Base URL Configuration: Added support for dynamic base URL configuration using secrets

New LLM Documentation Guides

• Pipeline Guide for LLMs: Comprehensive guide covering pipeline structure, task types, variables, control flow, and best practices
• Python Integration Guide: guide for Sling Python bindings with usage patterns and examples

v1.4.19

Sling v1.4.19 (2025-08-26T00:56:46Z)

Transforms

• Improve Staged Transforms reliability and performance

MCP Integration

• Comprehensive documentation for AI/LLM usage of Sling connections
• Unified tool interfaces with action-based architecture
• Enhanced error handling and user guidance

Database Connectivity

• Native ClickHouse driver support with advanced configuration
• Improved DuckDB Arrow streaming capabilities
• Enhanced TIME datatype handling across multiple databases
• Better TLS and security configuration options
• BigQuery BIGNUMERIC Support

v1.4.17

Sling v1.4.17 (2025-08-19T21:47:49Z)

Database Connections & Support

New Database Support

• Added Exasol connector: New database type with comprehensive bulk import functionality, CSV handling, and timestamp formatting

Connection Improvements

• BigQuery: Improved error handling for dataset access failures (warnings instead of errors)
• Athena: Enhanced workgroup error messaging with specific workgroup names
• Iceberg: Added S3 property pass-through for REST access and filesystem operations
• DuckDB: Enhanced AWS credential chain support with automatic provider detection

Transform System Overhaul

• Major refactor: Complete rewrite of the transform system architecture
  • Replaced legacy Transform with new TransformLegacy for backward compatibility
  • Introduced staged transforms with ParseStageTransforms function
  • Enhanced expression evaluation with record references
• New transform features:
  • Support for multi-stage transformations
  • Cross-column references using record.field_name syntax
  • Conditional logic and calculated fields
  • Enhanced function support (hash, cast, coalesce, etc.)

Data Type Enhancements

Time Data Types

• PostgreSQL TIME: Proper preservation of TIME, TIME WITH TIME ZONE, and TIME(precision) types
• MSSQL UNIQUEIDENTIFIER: Full support for UUID/GUID data type preservation
• Enhanced time handling: Better formatting and timezone support across all databases

Column Type Improvements

• Position handling: Fixed column position assignment when merging new columns
• String type detection: Refined logic for TIME vs STRING type classification
• Arrow format: Enhanced support for Arrow file format detection and streaming

File Processing & Encoding

Encoding Support

• Target encoding: Full implementation of encoding options for file outputs
• Multiple encodings: Support for Latin1, UTF8, Windows1252 encoding in target files
• Source/target distinction: Separate decode (source) and encode (target) handling

File Format Enhancements

• Arrow format: Improved detection and processing of Arrow files vs streams
• CSV improvements: Better handling of special characters and null values
• Parquet optimization: Enhanced reading performance and DuckDB integration

Performance & Optimization

• Debug logging: Converted g.DebugLow to g.Debug across codebase for better performance
• Memory management: Improved handling of large datasets and file processing
• Concurrent processing: Enhanced parallel processing capabilities

API & Pagination

• Fixed API pagination: Corrected pagination logic in API specifications
  • Fixed length(records) to length(response.records)
  • Improved header parsing with proper bracket notation

Testing & Quality Assurance

• New test suites: Added comprehensive tests for:
  • Staged transforms functionality
  • Encoding target options
  • Time data type preservation
  • UNIQUEIDENTIFIER handling
  • Large file ingestion (100K rows)
• Enhanced test coverage: Improved validation and error checking across test cases

Bug Fixes

• CSV string casting: Fixed method calls from CastToString to CastToStringCSV for proper CSV formatting
• Compression handling: Added compression parameter support for Databricks and Snowflake connections
• Error handling: Improved error messages and warnings across various connectors
• API column handling: Fixed column detection and handling in API responses

v1.4.16

Sling v1.4.16 (2025-08-03T00:57:21Z)

New Database Support

• Exasol Database Integration: Added comprehensive support for Exasol database
• Azure Table Storage: Added read support for Azure Table storage

Bug Fixes & Improvements

Replication & Data Handling

• Fixed hook stage validation before execution in replication
• Improved null value handling in query results for integer and decimal columns
• Enhanced StreamLoad to use LoaderStreamConfig for writing operations
• Removed redundant _SLING_LOADED_AT logging during column operations

Data Types & Format Support

• Added support for ClickHouse simpleaggregatefunction and fixedstring types
• Refactored NativeTypeToGeneral to use switch statement for better performance
• Improved column type preservation for SLING_LOADED_AT

Export & File Handling

• Fixed empty file handling for Parquet format in BulkExportFlow
• Added tests for empty dataset exporting with Parquet
• Enhanced exclusion of extra columns in Parquet exports
• Removed ORDER BY clause from incremental_select queries for better performance