How the catalog is populated
The catalog is built from connection profiles. When you run a profile on a connection, the agent connects read-only to your database, discovers all schemas and tables, inspects every column, and writes the results back. The catalog reflects the state of your database at the time of the last profile. To refresh stale data, run a new profile on the connection.Profiling runs through your agent — schema metadata never flows through Zwiron’s cloud.
Browsing assets
Go to Catalog in the sidebar.Sidebar tree
The left panel shows a source tree grouped by connection. Expand any connection to see its schemas. Clicking a schema filters the main list to that schema’s tables. Additional filters:Search
The search bar performs full-text search across table names, column names, and schema names. Results update as you type.Asset list columns
Asset detail
Click any table to open its detail page.Overview
Displays the asset’s qualified name (e.g.production.public.orders), connection, row count, size, profiled timestamp, and last sync time.
Columns
A virtualized list of every column in the table. Each row shows:
Click a column to apply governance tags to that column (for example, tag
email as Email instead of labeling the whole table). Matching policies for the column’s tags appear in the same panel.
Use the inline search to filter columns by name or type.
Stats
Column-level statistics collected during profiling:- Null percentage
- Distinct value count
- Min / max / average (for numeric columns)
- Most common values
Applicable policies
Open the Policies tab on the asset detail page for the full list of matching table and column policies (scrollable — safe when many policies apply). The Catalog peek panel only shows a one-line count that links here.Tags
Tags come from your Governance → Tag Classifications taxonomy. Apply them on tables (peek panel or Profile) or on individual columns (Columns tab).Add a tag
- Open any table in the Catalog
- Use the Tags picker (taxonomy search + optional classification filter)
- Select a tag from the list
Filter by tag
Click any tag chip in the asset list to filter to all assets with that tag.Remove a tag
Click × on any tag chip on an asset.Define classifications and allowed tags under Governance. The Catalog is where you apply them to tables and columns.
Deleting an asset
- Open the asset detail page
- Click the trash icon in the top-right corner
- Confirm the deletion
Keeping the catalog current
The catalog reflects your database at the time of the last profile. Tables added after the last profile do not appear until a new profile runs. To trigger a profile:- Go to Connections
- Select the connection
- Click Profile
Permissions
Related
- Connection Profiling — how catalog data is collected
- Governance — structured classification tags
- Data Quality — test rules on catalog tables