How to Version-Control ParadeDB Queries in PostgreSQL

How can I version-control ParadeDB queries directly in PostgreSQL?

Version-controlling ParadeDB queries means storing each query revision in a structured table so you can audit, compare, and roll back SQL used by ParadeDB.

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Description

Example H2

Example H3

What is ParadeDB query version control?

Query version control records every change to the SQL text that powers ParadeDB so you can safely iterate, audit, and revert. Instead of editing live views, you append new versions to a metadata table and reference only the latest version in production.

How does the pattern work?

You create a query_versions table, enforce one active version per query name, and wrap execution in a helper function that always returns the newest SQL.Developers update a query by inserting a new row with a higher version.

When should I use it?

Use this pattern when ParadeDB drives product search or recommendation logic that changes often.Versioning lets you A/B test different vector similarity thresholds, rollback performance regressions, and document why changes were made.

What tables do I need?

You need:

query_versions – stores name, version, SQL, author, notes.
query_latest – a materialized view or ON CONFLICT-driven unique index to keep one active version.

Example schema

CREATE TABLE query_versions ( id serial PRIMARY KEY, name text NOT NULL, version int NOT NULL, sql text NOT NULL, author text, notes text, created_at timestamptz DEFAULT now(), UNIQUE(name, version) );. CREATE UNIQUE INDEX query_latest_idx ON query_versions (name) WHERE version IS DISTINCT FROM NULL; -- ensures one latest row

How do I add a new version?

Insert the new SQL with version = (SELECT COALESCE(MAX(version),0)+1 FROM query_versions WHERE name = 'customer_ltv').The unique-partial index guarantees only one latest version remains.

How do I execute the latest version?

CREATE OR REPLACE FUNCTION run_query(p_name text) RETURNS SETOF record LANGUAGE plpgsql AS $$ DECLARE v_sql text; BEGIN SELECT sql INTO v_sql FROM query_versions WHERE name = p_name ORDER BY version DESC LIMIT 1;. RETURN QUERY EXECUTE v_sql; END;$$;

Call it with SELECT * FROM run_query('customer_ltv').

Can I diff versions?

Yes. Use LAG(sql) OVER (PARTITION BY name ORDER BY version) to show line-level diffs or export to a Git-style patch.

Best practices

Store only parameter-free SQL; pass parameters to the wrapper function.
Tag production versions with a comment or boolean flag, not just max(version).
Automate inserts via CI to keep Git and DB history aligned.

Common pitfalls

Avoid updating rows in place; that loses audit history.Always INSERT new versions.

Add a check constraint to prevent version gaps if you rely on sequential integers.

Why How to Version-Control ParadeDB Queries in PostgreSQL is important

How to Version-Control ParadeDB Queries in PostgreSQL Example Usage


-- Add version 2 with a date filter
INSERT INTO query_versions(name, version, sql, author, notes)
VALUES (
  'customer_ltv',
  2,
  $$SELECT c.id, c.name, SUM(o.total_amount) AS lifetime_value
    FROM Customers c
    JOIN Orders o ON o.customer_id = c.id
   WHERE o.order_date >= CURRENT_DATE - INTERVAL '1 year'
   GROUP BY c.id, c.name$$,
  'alice@store.com',
  'Limit LTV to trailing 12 months'
);

-- Run latest
SELECT * FROM run_query('customer_ltv');

How to Version-Control ParadeDB Queries in PostgreSQL Syntax


-- Create version table
CREATE TABLE query_versions (
  id          serial PRIMARY KEY,
  name        text NOT NULL,
  version     int  NOT NULL,
  sql         text NOT NULL,
  author      text,
  notes       text,
  created_at  timestamptz DEFAULT now(),
  UNIQUE(name, version)
);

-- Example insert for an ecommerce LTV query
INSERT INTO query_versions(name, version, sql, author, notes)
SELECT 'customer_ltv',
       COALESCE(MAX(version),0)+1,
       $$SELECT c.id, c.name, SUM(o.total_amount) AS lifetime_value
         FROM Customers c
         JOIN Orders o ON o.customer_id = c.id
         GROUP BY c.id, c.name$$,
       'alice@store.com',
       'Initial version calculating LTV'
  FROM query_versions
 WHERE name = 'customer_ltv';

-- Execute newest version
SELECT * FROM run_query('customer_ltv');

Common Mistakes

Mistake: Updating the existing row instead of inserting a new one.<br>Why: You lose historical context and can’t roll back.<br>Fix: Always INSERT a new version and rely on a partial UNIQUE index to mark the latest.
Mistake: Embedding user parameters in the stored SQL text.<br>Why: Breaks caching and version uniqueness.<br>Fix: Keep stored SQL parameter-free and pass values through the wrapper function.