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## Problem Both these versions are binary compatible, but the way pgvector structures the SQL files forbids installing 0.7.4 if you have a 0.8.0 distribution. Yet, some users may need a previous version for backward compatibility, e.g., restoring the dump. See this thread for discussion https://neondb.slack.com/archives/C04DGM6SMTM/p1735911490242919?thread_ts=1731343604.259169&cid=C04DGM6SMTM ## Summary of changes Put `vector--0.7.4.sql` file into compute image to allow installing this version as well. Tested on staging and it seems to be working as expected: ```sql select * from pg_available_extensions where name = 'vector'; name | default_version | installed_version | comment --------+-----------------+-------------------+------------------------------------------------------ vector | 0.8.0 | (null) | vector data type and ivfflat and hnsw access methods create extension vector version '0.7.4'; select * from pg_available_extensions where name = 'vector'; name | default_version | installed_version | comment --------+-----------------+-------------------+------------------------------------------------------ vector | 0.8.0 | 0.7.4 | vector data type and ivfflat and hnsw access methods alter extension vector update; select * from pg_available_extensions where name = 'vector'; name | default_version | installed_version | comment --------+-----------------+-------------------+------------------------------------------------------ vector | 0.8.0 | 0.8.0 | vector data type and ivfflat and hnsw access methods drop extension vector; create extension vector; select * from pg_available_extensions where name = 'vector'; name | default_version | installed_version | comment --------+-----------------+-------------------+------------------------------------------------------ vector | 0.8.0 | 0.8.0 | vector data type and ivfflat and hnsw access methods ``` If we find out it's a good approach, we can adopt the same for other extensions with a stable ABI -- support both `current` and `current - 1` releases.
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.