How to Migrate from ParadeDB to Redshift

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How do I migrate data from ParadeDB to Amazon Redshift?

Efficiently transfer tables, indexes, and data from PostgreSQL-based ParadeDB into Amazon Redshift.

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Description

Example H2

Example H3

Why move from ParadeDB to Redshift?

Redshift’s columnar storage, elastic scaling, and AWS ecosystem offer faster analytical queries and easier integration with BI tools compared with ParadeDB’s PostgreSQL extension approach.

Which migration paths exist?

Most teams choose the "Dump → S3 → COPY" path because it preserves schema, scales on large datasets, and relies only on standard tooling.

1. Dump ParadeDB tables to CSV or Parquet

Run psql or parade-cli to export each table. Parquet is preferable for compressed, typed data.

2. Upload files to an S3 bucket

Use aws s3 cp or aws s3 sync. Grant Redshift’s IAM role s3:GetObject permission on the bucket.

3. Recreate schema in Redshift

Translate ParadeDB types to Redshift equivalents (e.g., JSONB → SUPER, TEXT → VARCHAR). Create DISTKEY and SORTKEY for performance.

4. Load data with COPY

Run COPY for each table, pointing to S3. Use FORMAT AS PARQUET or specify CSV options.

How do I validate the migrated data?

After loading, run count and checksum queries in both systems. Spot-check high-value rows with EXCEPT queries.

Best practices for a smooth migration

• Migrate small tables first to test.
• Compress files with GZIP or Parquet.
• Use Redshift Spectrum for staging when datasets exceed cluster storage.
• Enable COMPUPDATE OFF only after initial COPY to avoid sub-optimal encodings.

Can I keep ParadeDB and Redshift in sync?

Yes. Schedule incremental exports using pg_dump --data-only --snapshot or logical replication to S3, then COPY with TRUNCATECOLUMNS and TIMEFORMAT 'auto'.

When should I switch over production workloads?

Cut over after query regression tests pass and CDC pipelines are confirmed. Freeze ParadeDB writes during the final delta load to guarantee consistency.

Why How to Migrate from ParadeDB to Redshift is important

How to Migrate from ParadeDB to Redshift Example Usage


-- Load all products after exporting to Parquet
COPY Products
FROM 's3://acme-paradedb-dumps/products.parquet'
IAM_ROLE 'arn:aws:iam::123456789012:role/RedshiftLoadRole'
FORMAT AS PARQUET;

How to Migrate from ParadeDB to Redshift Syntax


# Export table from ParadeDB to Parquet
COPY (SELECT * FROM Orders) TO PROGRAM 'aws s3 cp - s3://acme-paradedb-dumps/orders.parquet' (FORMAT PARQUET);

# Export as CSV (alternative)
COPY Orders TO '/tmp/orders.csv' DELIMITER ',' CSV HEADER;
aws s3 cp /tmp/orders.csv s3://acme-paradedb-dumps/orders.csv

-- Recreate table in Redshift
CREATE TABLE Orders (
    id            BIGINT      DISTKEY,
    customer_id   BIGINT,
    order_date    TIMESTAMP,
    total_amount  DECIMAL(12,2),
    SORTKEY(order_date)
);

-- Load data into Redshift
COPY Orders
FROM 's3://acme-paradedb-dumps/orders.parquet'
IAM_ROLE 'arn:aws:iam::123456789012:role/RedshiftLoadRole'
FORMAT AS PARQUET;

-- CSV variant with options
COPY Orders
FROM 's3://acme-paradedb-dumps/orders.csv'
IAM_ROLE 'arn:aws:iam::123456789012:role/RedshiftLoadRole'
DELIMITER ','
IGNOREHEADER 1
DATEFORMAT 'auto'
TIMEFORMAT 'auto'
COMPUPDATE ON;

Common Mistakes

Ignoring data type differences. ParadeDB’s JSONB maps to Redshift SUPER, not VARCHAR. COPY fails or truncates data. Fix by creating SUPER columns or storing JSON as VARBYTE via Glue.
Skipping compression. Uploading raw CSVs inflates storage and increases COPY time. Save bandwidth by exporting Parquet or GZIP-compressed CSV and adding "GZIP" in COPY options.