Microsoft SQL Server Integration Services - Lineage
This article outlines the lineage coverage, configuration settings, metadata handling, supported scenarios, component behavior, process flow, and known limitations for lineage extraction in SQL Server Integration Services (SSIS). The lineage process captures how data moves across SSIS packages by connecting sources, destinations, transformations, variables, connection managers, and control flow tasks. It supports table-level and column-level lineage to trace data flow from source tables or files through transformation components to destination systems, enabling transparency, impact analysis, dependency tracking, and operational visibility across ETL workflows.
Lineage Configuration Requirements
Accurate lineage extraction depends on specific configuration settings and access permissions. These settings must be configured correctly to ensure that SSIS packages, connections, transformations, and source-to-target mappings are interpreted successfully.
Configuration Requirements Table
Database Access
Read access to the underlying source and target databases is required
Package Encryption
Encrypted packages must be decrypted before lineage extraction
Connection Information
Connection manager details must be accessible for source and destination mapping
Variable Handling
Static variable values must be available for accurate lineage resolution
Package Scope
Supports processing specific packages or all packages through the datasetId configuration
Connection Strings
Requires decrypted connection strings for lineage processing
Incorrect permissions, inaccessible package files, encrypted packages, unresolved connection information, or missing variable values may prevent lineage extraction or result in incomplete lineage mapping.
Lineage Components
Relational and database sources (OLE DB, ODBC, ADO.NET, Oracle, PostgreSQL, SQL Server)
✅
File sources (Flat files, CSV, TXT, Excel, HDFS)
✅
SharePoint lists
✅
Dynamic SQL or unsupported source types
❌
Relational and database destinations (OLE DB, ODBC, ADO.NET, Oracle, PostgreSQL, SQL Server)
✅
File destinations (Flat files, CSV, TXT, Excel, HDFS)
✅
Dynamic or encrypted destinations
❌
Type conversions, sorting, joins (Merge Join, Lookup), and aggregations (SUM, AVG, COUNT)
✅
Derived Columns (basic expressions)
✅
Union All (data stream merges)
✅
Execute SQL Task, Execute Package Task, and Data Flow Task
✅
ForEach Loop and Sequence Containers
✅
Script Task, File System Task, and FTP Task
❌
Supported Use Cases
The connector supports several SSIS lineage scenarios across packages, sources, destinations, transformations, and control flow tasks. These use cases describe areas where lineage extraction functions as expected for standard SSIS implementations.
Supported Lineage Scenarios
Standard SSIS Packages
Lineage extraction for standard SSIS package files (.dtsx)
Relational Source and Destination Lineage
Lineage extraction for OLE DB, ODBC, ADO.NET, Oracle, PostgreSQL, and SQL Server sources and destinations
File-Based Lineage
Lineage extraction from flat files, CSV/TXT, Excel, and HDFS sources and destinations
SharePoint List Lineage
Lineage extraction from SharePoint list sources
Transformation Lineage
Lineage extraction for Data Conversion, Sort, Merge Join, Derived Column (basic expressions), Union All, Lookup, and Aggregate transformations
Control Flow Task Lineage
Lineage extraction for Execute SQL Task, Execute Package Task, Data Flow Task, ForEach Loop, and Sequence Container tasks
Column-level lineage is supported for standard source-to-transformation-to-destination mappings across supported SSIS components.
Partial or Limited Coverage
Certain scenarios function only with partial coverage due to limitations in metadata availability, transformation complexity, or runtime-generated logic. These areas may produce incomplete lineage results.
Scenarios
Complex Expressions and CASE Statements
Complex expressions, nested CASE statements, and multi-step transformation logic may not resolve fully
Nested Derived Columns
Derived column transformations with nested expressions are partially tracked
Column Concatenations
Lineage tracks only the first participating column in concatenation operations
Aggregate Functions
Aggregate functions such as SUM, AVG, and COUNT are partially tracked during transformation mapping
Static Runtime Variables
Runtime variables are supported only when values are predefined and accessible during lineage extraction
Incomplete metadata, unresolved variables, failed query parsing, or unsupported transformation logic may prevent complete lineage creation.
Unsupported Scenarios
The connector does not support lineage extraction for runtime-generated logic, unsupported SSIS components, encrypted packages, or unsupported processing behaviors due to the absence of accessible metadata.
Unsupported Lineage
Dynamic SQL or Runtime-Generated Queries
Runtime-generated or parameterized SQL queries are not resolved during lineage extraction
Script Tasks
C# and VB.NET script logic is not parsed for lineage
Encrypted Packages Without Decryption
Packages cannot be processed unless decrypted before extraction
Custom or Third-Party Components
Custom SSIS components and external third-party components are unsupported
Cloud Connectors or Azure Sources
Lineage extraction for cloud-native or Azure-based connectors is not supported
Failed Query Parsing for Complex SQL
Unsupported or highly complex SQL queries may fail during parsing
Wildcard File Patterns
Wildcard patterns such as *.txt are not resolved during lineage extraction
Conditional Precedence Constraints
Conditional execution flows and precedence-based task logic are not tracked
Unsupported scenarios will not produce lineage and may appear disconnected in lineage visualization.
Current Functional Status
This section outlines the present state of lineage coverage supported by the SSIS connector based on the available capabilities and limitations.
Overall Coverage
Advanced coverage for standard SSIS packages, sources, transformations, and control flow tasks
Lineage Depth
Table-level and column-level lineage are supported for standard SSIS implementations
Supported Inputs
SSIS packages, relational databases, file-based sources, transformations, variables, and control flow tasks
Functional Scope
Lineage extraction works for supported SSIS lineage scenarios and standard ETL workflows
Partial Coverage Areas
Complex expressions, CASE statements, nested derived columns, aggregate tracking, and runtime variables
Unsupported Areas
Script tasks, dynamic SQL, encrypted packages, custom components, wildcard files, cloud connectors, and conditional flows
Resulting Output
Lineage is extracted for most standard SSIS implementations, with partial or unavailable mapping in unsupported scenarios
Coverage remains partial for complex runtime logic, dynamic SQL, nested expressions, encrypted packages, and unsupported SSIS components because these scenarios do not expose sufficient metadata for complete lineage extraction.
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