slingdata-io/sling-cli v1.4.13

on GitHub

Sling v1.4.13 (2025-07-09T15:41:01Z)

Key Features & Enhancements

Database & Connection Improvements

• Iceberg Support: Enhanced Iceberg connection with AWS config and improved database handling
• Glue Integration: Added support for iceberg_glue target and enhanced Glue connection capabilities
• DuckDB Updates: Updated DuckDB version and added adjustCol flag for DuckDB and related types
• Redshift Enhancement: Added Redshift parquet export functionality

API & Spec Management

• API Spec Refactoring: Refactored API specs to use curly braces for variable interpolation
• MCP Tools: Enhanced connection and API spec tools with detailed action support
• Pagination Fixes: Updated stop_condition in pagination to use strict less than comparison

File System & Storage

• S3 Enhancements:
  • Enhanced S3 client with custom HTTP settings and retry logic
  • Streamlined AWS credential handling by removing unnecessary components
• File Management:
  • Fixed local temporary file deletion after writing to prevent duplication
  • Fixed single file copy operation to prevent filename duplication
  • Added support for multiple Azure Storage files replication

Testing & Quality

• Test Suite Expansion:
  • Added new connection types for DuckLake variants
  • Enhanced test cases with output verification
  • Added encoding tests for latin1, windows1252, and utf8_bom
  • Added transform functions test suite
  • Added inspect hook tests for database tables and files
  • Added MSSQL to parquet overwrite test
  • Added timestamp string casting tests

Performance & Reliability

• Streaming Improvements:
  • Replaced error logging with LogError for better error handling
  • Improved reader robustness and concurrency
• Workflow Optimization:
  • Increased timeout for build and release jobs (25 minutes)
  • Enhanced streaming capabilities

Dependencies & Maintenance

• Dependency Updates:
  • Updated flarco/g dependency to v0.1.154
  • Updated mark3labs/mcp-go to v0.33.0
• Snowflake Fix: Fixed temporary file handling with SLING_KEEP_TEMP environment variable