[avgvi]

sqlx's go.mod listed go-sql-driver/mysql, lib/pq and go-sqlite3 because the tests imported them. Go's minimum version selection carries those requirements into every program that imports sqlx, so a consumer pinned to mysql v1.7.1 was silently raised to v1.10.1 by adopting the fork (upstream issues 642, 569 and 849 ask for this).

What moves

• The tests that talk to a database move to dbtest/, a nested module with its own go.mod (the three drivers, plus replace github.com/secondwindoss/sqlx => ../). Whole files move with git mv; sqlx_test.go, sqlx_context_test.go, named_test.go and in_empty_test.go are split by declaration, copied verbatim.
• dbtest is package dbtest with a dot import of sqlx, so the moved tests read as before.
• The unit tests, benchmarks and compile-time interface checks that use unexported identifiers stay in the root (sqlx_unit_test.go, named_test.go, in_empty_test.go), with the fuzz, golden, scan, reflectx and types tests.
• Three tests read the unexported unsafe field; they now check its effect instead: an unsafe Stmt scans into a struct that lacks selected columns, a safe one returns a missing destination error. TestUsage uses db.Select instead of the unexported scanAll (same code path).

Result

• Root go.mod: module and go 1.24.0, no requirements; root go.sum is gone. A new lint step fails if the root module ever requires anything again.
• CI vets, staticchecks and govulnchecks both modules, runs the root unit tests, then the database tests in dbtest/ against Postgres 16, MySQL 8 and SQLite (the Disabling check still applies). Dependabot watches /dbtest. Makefile, CONTRIBUTING, README and CHANGELOG updated.

Verified locally (Go 1.27.1, Postgres 16 and MySQL 8 in Docker, SQLite)

• master: 335 pass, 2 skip. This branch: 296 pass in the root plus 39 pass and 2 skip in dbtest. The sets of test names are identical.
• vet, staticcheck -checks=all, goimports and govulncheck clean on both modules.
• A consumer module that pins mysql v1.7.1 and depends on this branch keeps v1.7.1; its go.mod change is only the sqlx lines.