Index Field Modifier (Labs)

The Table Indexer (Labs) node constructs a fast, fault-tolerant search index from multiple columns of an input table. Users can dynamically add fields and assign a semantic data type to each one.
For predefined data types (such as Term, Street Name, ZIP Code, City Name, Country Name, Email, IBAN), the node automatically chooses the most suitable internal indexing strategy.
When the Generic data type is selected, users can manually choose between the Edit, Automaton, or Automatic index types to fine-tune matching behavior.
The node outputs a unified Table Index Object containing all configured fields, their metadata, and their internal indexing configurations. This index is designed for use in the Table Index Matcher node for multi-attribute fuzzy matching and entity resolution.

Options

Index Column

Select an Index field to modify.

Index Type

Selects the semantic type of the field. Determines auto-configuration behavior.

Generic Data Types (Current Version)
Used when no domain-specific semantics are assumed.

• Generic – Identity
  For stable identifiers or IDs where structure and exactness dominate. These are typically strings used for identification.
• Generic – Term
  For short, atomic strings such as names, labels, or identifiers.
• Generic – Phrase
  For multi-word text fields such as full names or titles.

Numeric Data Types
Used for strictly numerical columns.

• Numeric – Integer
  For whole-number values without decimal precision (e.g., counts, years, numeric identifiers stored as integers). Treated as numeric values, not free-text.
• Numeric – Double
  For floating-point numbers with decimal precision (e.g., prices, measurements, coordinates). Preserves numeric accuracy during indexing.

Special Field Types

• None – Add Later
  Defines a placeholder field within the index schema. The field is structurally part of the index but not yet actively indexed. It can be activated later using the Index Field Modifier node.
• None – Non-Searchable (Display Only)
  Includes the field in the index strictly as metadata. It does not participate in matching or similarity computation but is returned for contextual enrichment in retrieval results.

Data Types (Coming soon)
The following semantic data types are defined conceptually but are not supported in the current version:
Address Data Types (not supported yet)

• Address – Street
• Address – House Number
• Address – Postcode
• Address – City
• Address – Country

These are intended for structured address components with specialized matching behavior.
Personal Data Types (not supported yet)

• Personal – Email
• Personal – Firstname
• Personal – Lastname

These are intended for identity-related fields with optimized indexing logic tailored to personal data structures.

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