How to CREATE VIEW ParadeDB in PostgreSQL

How do I create and manage views in ParadeDB using PostgreSQL?

CREATE VIEW stores a reusable SQL query as a virtual table, simplifying complex logic and improving code reuse.

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Description

Why use CREATE VIEW with ParadeDB?

Views in ParadeDB let you hide join logic, enforce security rules, and expose clean tables to applications without duplicating data.

What is the basic syntax?

The command starts with CREATE [OR REPLACE] VIEW view_name AS SELECT .... You can add WITH (security_barrier=true) or WITH (check_option=local) for extra control.

How do I reference ecommerce tables?

Use fully-qualified names, e.g., paradedb.public.orders.Views can join Customers, Orders, and OrderItems to return customer purchase history.

Can I parameterize a view?

PostgreSQL views do not accept runtime parameters, but you can wrap a view in a SQL function that takes arguments.

Best practice: use OR REPLACE

During development add OR REPLACE so re-runs do not fail if the view already exists.

Best practice: secure sensitive columns

Create a view that omits PII such as email, then grant SELECT only on that view to application roles.

How do I update a view definition?

Use CREATE OR REPLACE VIEW with the new SELECT.PostgreSQL swaps definitions atomically, avoiding downtime.

What happens when underlying tables change?

If a column used by the view is dropped or its type changes, the view becomes invalid. Recreate the view to resolve errors.

How to drop a view safely?

Run DROP VIEW IF EXISTS view_name CASCADE to remove the view and dependents. Use cautiously in production.

Why How to CREATE VIEW ParadeDB in PostgreSQL is important

How to CREATE VIEW ParadeDB in PostgreSQL Example Usage


-- View that shows latest order per customer in ParadeDB
aoCREATE OR REPLACE VIEW latest_customer_order AS
SELECT DISTINCT ON (c.id)
       c.id          AS customer_id,
       c.name        AS customer_name,
       o.id          AS order_id,
       o.order_date,
       o.total_amount
FROM   Customers c
JOIN   Orders    o ON o.customer_id = c.id
ORDER  BY c.id, o.order_date DESC;

How to CREATE VIEW ParadeDB in PostgreSQL Syntax


CREATE [OR REPLACE] VIEW view_name
[ (column_alias [, ...]) ]
[WITH (security_barrier=boolean, check_option={local | cascaded}) ]
AS
SELECT column_list
FROM table_list
[WHERE condition]
[GROUP BY ...]
[WITH [CASCADED | LOCAL] CHECK OPTION];

-- Ecommerce example
CREATE OR REPLACE VIEW customer_order_summary AS
SELECT c.id      AS customer_id,
       c.name    AS customer_name,
       COUNT(o.id)            AS orders_count,
       SUM(o.total_amount)    AS lifetime_value
FROM   Customers c
JOIN   Orders    o ON o.customer_id = c.id
GROUP BY c.id, c.name
WITH CASCADED CHECK OPTION;

Common Mistakes

Omitting column aliases. Without explicit aliases, column names inherit source-table names, leading to ambiguous columns when joining multiple tables. Always list aliases after the view name for clarity.
Forgetting WITH CHECK OPTION. Without it, users can insert or update rows through updatable views that violate the view's WHERE clause. Add LOCAL or CASCADED CHECK OPTION to enforce constraints.