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fix(db): make the huddle liveness link query run on Postgres 15 - #77
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huddle_started_links tested start content with `IS JSON OBJECT`, which needs Postgres 16. Prod runs 15, so every liveness batch failed with "syntax error at or near JSON". SQL now only narrows candidates to start events that mention the session ID, and huddle_started_content_links decides, as the per-link checks already do. Each session keeps its newest valid link, so a newer malformed start cannot hide an older valid one.
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The title clearly and concisely identifies the primary change: making the database huddle liveness link query compatible with Postgres 15. |
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Inline comments:
Review comments at @crates/buzz-db/src/store/event.rs:
- Line 286: Update the liveness lookup’s candidate retrieval instead of
collecting every matching start event with fetch_all. Stream or page candidates
so rows are processed in bounded batches, continuing past newer malformed starts
until a valid link is found.
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crates/buzz-db/src/store/event.rs
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What
On the prod relay, every huddle liveness batch fails:
huddle_started_links(crates/buzz-db/src/store/event.rs) tests start-event content withIS JSON OBJECT, which needs Postgres 16. Prod RDS runs Postgres 15. CI runs Postgres 16, so CI did not catch it.This was the only Postgres 16-only construct I found in Rust SQL, migrations and
schema/schema.sql.Fix
The query now works the same way as the per-link checks (
huddle_started_link_exists*):ILIKE '%' || backing.id::text || '%'). The creator, channel, kind and 512-byte limits are unchanged.huddle_started_content_linksparses each candidate in Rust. Postgres 15 can't test whether text is valid JSON without raising an error.Liveness and authorization now use the same rule for what counts as a link.
Tested
huddle_started_links_batches_valid_creator_links_and_ignores_malformed_contentnow also has a newer start that mentions the session ID but isn't valid JSON.postgres:15(15.19) andpostgres:16(16.14).syntax error at or near "JSON".store::eventPostgres tests pass on Postgres 15.buzz-relayhuddle unit tests pass.cargo clippy -p buzz-db --all-targets -- -D warningsandcargo fmt --checkare clean.CI still runs Postgres 16 only, while prod runs 15. A Postgres 15 job would catch this class of error.
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