Returns the catalog of tables and columns available to query.

Each column reports a logical data-type category (string, int, double, decimal, currency, billingperiod, bool, or datetime). Currency and billing-period columns compute as decimal and int respectively in KQL, so calculations and comparisons are unaffected; the narrower type only tells clients how to format and label the value. Related fields identify unit codes and display names needed to format a value. This is the same catalog the schema browser and editor use. Requires the Edx feature flag.

{  "tables": [
    {    "columns": [
      {      "dataType": "string",      "description": "string",      "displayFormat": "string",      "name": "string",      "relatedFields": []
    }
    ],    "description": "string",    "name": "string"
  }
  ]
}