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We want to host pg_duckdb (starting with v0.3.1) on Neon.
This PR replaces https://github.com/neondatabase/neon/pull/10350 which
was for older pg_duckdb v0.2.0
Use cases
- faster OLAP queries
- access to datelake files (e.g. parquet) on S3 buckets from Neon
PostgreSQL
Because neon does not provide superuser role to neon customers we need
to grant some additional permissions to neon_superuser:
Note: some grants that we require are already granted to `PUBLIC` in new
release of pg_duckdb
[here](3789e4c509/sql/pg_duckdb--0.2.0--0.3.0.sql (L1054))
```sql
GRANT ALL ON FUNCTION duckdb.install_extension(TEXT) TO neon_superuser;
GRANT ALL ON TABLE duckdb.extensions TO neon_superuser;
GRANT ALL ON SEQUENCE duckdb.extensions_table_seq TO neon_superuser;
```
This directory contains files that are needed to build the compute images, or included in the compute images.
compute-node.Dockerfile To build the compute image
vm-image-spec.yaml Instructions for vm-builder, to turn the compute-node image into corresponding vm-compute-node image.
etc/ Configuration files included in /etc in the compute image
patches/ Some extensions need to be patched to work with Neon. This directory contains such patches. They are applied to the extension sources in compute-node.Dockerfile
In addition to these, postgres itself, the neon postgres extension, and compute_ctl are built and copied into the compute image by compute-node.Dockerfile.