Add basic postgres

[chris124567]

Re: #321

This is meant to be a very literal translation of the sqlite with a minimum amount of changes for things that broke. I will do postgres specific optimizations in a followup PR.

To reviewers, use this command to view the difference between the sqlite files and the postgres files:

for f in persist/sqlite/*.go; do n=$(basename "$f"); o="persist/postgres/$n"; [ -f "$o" ] && git diff --no-index --color=always -- "$f" "$o"; done

[claude]

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[n8mgr]

@claude review

[Copilot]

Pull request overview

Adds an initial PostgreSQL persistence backend alongside the existing SQLite store, and refactors the store tests so the same suite can run against either backend.

Changes:

• Introduces a new persist/postgres store implementation with schema initialization, encoding, transactions, chain updates, queries, host handling, metrics, and tests.
• Refactors internal/storetest from SQLite-specific tests into shared backend tests with SQLite/PostgreSQL factories.
• Adds PostgreSQL CI coverage and pgx-related dependencies.

Reviewed changes

Copilot reviewed 39 out of 40 changed files in this pull request and generated 28 comments.

Show a summary per file

File	Description
.github/workflows/main.yml	Adds a PostgreSQL-backed CI test job.
go.mod	Adds PostgreSQL/pgx and test dependencies.
go.sum	Adds checksums for new dependencies.
internal/storetest/addresses_test.go	Moves address tests into shared storetest package.
internal/storetest/consensus_test.go	Adds shared consensus store tests.
internal/storetest/contracts_test.go	Moves contract tests into shared storetest package.
internal/storetest/events_test.go	Moves event tests into shared storetest package.
internal/storetest/factory_postgres_test.go	Adds PostgreSQL test-store factory.
internal/storetest/factory_sqlite_test.go	Adds SQLite test-store factory.
internal/storetest/hosts_test.go	Refactors host tests to use shared store helpers.
internal/storetest/metrics_test.go	Moves metrics tests into shared storetest package.
internal/storetest/transactions_test.go	Moves transaction tests into shared storetest package.
internal/storetest/v2consensus_test.go	Moves v2 consensus tests into shared storetest package.
internal/storetest/v2contracts_test.go	Moves v2 contract tests into shared storetest package.
internal/storetest/v2transactions_test.go	Moves v2 transaction tests into shared storetest package.
persist/sqlite/consensus_test.go	Removes SQLite-local consensus tests after moving them to storetest.
persist/sqlite/testing.go	Adds SQLite host seeding helper for shared tests.
persist/postgres/addresses.go	Adds PostgreSQL address/event/balance queries.
persist/postgres/blocks.go	Adds PostgreSQL block and tip queries.
persist/postgres/consensus.go	Adds PostgreSQL chain-state update and host scan logic.
persist/postgres/contracts.go	Adds PostgreSQL v1 contract queries.
persist/postgres/encoding.go	Adds PostgreSQL value encoding/decoding helpers.
persist/postgres/events.go	Adds PostgreSQL event queries and unconfirmed event annotation.
persist/postgres/hosts.go	Adds PostgreSQL host scan and host query support.
persist/postgres/init.go	Adds PostgreSQL schema initialization and migration handling.
persist/postgres/init.sql	Adds initial PostgreSQL schema.
persist/postgres/merkle.go	Adds PostgreSQL Merkle proof lookup.
persist/postgres/metrics.go	Adds PostgreSQL network/host/difficulty metrics.
persist/postgres/migrations.go	Adds PostgreSQL migration list scaffold.
persist/postgres/revert.go	Adds PostgreSQL chain revert deletion logic.
persist/postgres/search.go	Adds PostgreSQL search implementation.
persist/postgres/sql.go	Adds pgx transaction/statement wrappers.
persist/postgres/store.go	Adds PostgreSQL store constructor, connection handling, and transactions.
persist/postgres/store_test.go	Adds PostgreSQL database creation test.
persist/postgres/testing.go	Adds PostgreSQL test helpers.
persist/postgres/transactions.go	Adds PostgreSQL v1 transaction queries.
persist/postgres/v2consensus.go	Adds PostgreSQL v2 chain-state persistence.
persist/postgres/v2contracts.go	Adds PostgreSQL v2 contract queries.
persist/postgres/v2transactions.go	Adds PostgreSQL v2 transaction queries.

Comments suppressed due to low confidence (1)

persist/postgres/v2transactions.go:285

• These errors are emitted while querying/scanning siafund inputs, but they say “siacoin inputs”. That will make debugging PostgreSQL failures harder because the reported component is wrong.

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[chris124567]

That Claude review was hardly worth $15!

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	github.com/​jackc/​pgx/​v5@​v5.9.2
	go.uber.org/​goleak@​v1.3.0

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