Get Table Columns

Get all columns for a table.

Args: table_id: Full table identifier (format: database.schema.table or similar path)

Returns: TableColumnsResponse containing:

• columns: List of all columns in the table with:
  • id: Unique column identifier
  • name: Column name
  • dataType: Column data type (if available)
  • totalQueries30d: Number of queries using this column in last 30 days
  • popularity: Relative popularity score (0-100) based on query usage

Example:

• List table schema: table_id=“analytics.fact_orders”
• Returns all columns like order_id, customer_id, amount, created_at with their metadata

Use this to understand table structure and identify important columns before exploring column-level lineage.