Bump github.com/lib/pq from 1.12.0 to 1.12.3

[dependabot]

Bumps github.com/lib/pq from 1.12.0 to 1.12.3.

Release notes

Sourced from github.com/lib/pq's releases.

v1.12.3

• Send datestyle startup parameter, improving compatbility with database engines that use a different default datestyle such as EnterpriseDB (#1312).

#1312: lib/pq#1312

v1.12.2

• Treat io.ErrUnexpectedEOF as driver.ErrBadConn so database/sql discards the connection. Since v1.12.0 this could result in permanently broken connections, especially with CockroachDB which frequently sends partial messages (#1299).

#1299: lib/pq#1299

v1.12.1

• Look for pgpass file in ~/.pgpass instead of ~/.postgresql/pgpass (#1300).

• Don't clear password if directly set on pq.Config (#1302).

#1300: lib/pq#1300 #1302: lib/pq#1302

Changelog

Sourced from github.com/lib/pq's changelog.

v1.12.3 (2026-04-03)

• Send datestyle startup parameter, improving compatbility with database engines that use a different default datestyle such as EnterpriseDB (#1312).

#1312: lib/pq#1312

v1.12.2 (2026-04-02)

• Treat io.ErrUnexpectedEOF as driver.ErrBadConn so database/sql discards the connection. Since v1.12.0 this could result in permanently broken connections, especially with CockroachDB which frequently sends partial messages (#1299).

#1299: lib/pq#1299

v1.12.1 (2026-03-30)

• Look for pgpass file in ~/.pgpass instead of ~/.postgresql/pgpass (#1300).

• Don't clear password if directly set on pq.Config (#1302).

#1300: lib/pq#1300 #1302: lib/pq#1302

Commits

• 1f3e3d9 Send datestyle as a startup parameter (#1312)
• 32ba56b Expand tests for multiple result sets
• c2cfac1 Release v1.12.2
• 859f104 Test CockroachDB
• 12e464c Allow multiple matches and regexps in pqtest.ErrorContains()
• 6d77ced Treat io.ErrUnexpectedEOF as driver.ErrBadConn in handleError
• 71daecb Ensure transactions are closed in pqtest
• 8f44823 Set PGAPPNAME for tests
• 4af2196 Fix healthcheck
• 38a54e4 Split out testdata/init a bit
• Additional commits viewable in compare view

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Note

Low Risk
Low risk dependency bump to the Postgres driver; behavior changes are limited to connection/startup parameter handling and error classification, but could affect DB connectivity in production.

Overview
Updates the Go module dependency github.com/lib/pq from v1.12.0 to v1.12.3 and refreshes go.sum accordingly.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.45%. Comparing base (0d72fd3) to head (fc54efa).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #147      +/-   ##
==========================================
+ Coverage   77.76%   78.45%   +0.68%     
==========================================
  Files          36       36              
  Lines        4804     4804              
==========================================
+ Hits         3736     3769      +33     
+ Misses        822      793      -29     
+ Partials      246      242       -4     

Flag	Coverage Δ
go_tests	1.91% <ø> (ø)
nodb_tests	60.11% <ø> (-0.24%)	⬇️
pg_tests	75.48% <ø> (-0.14%)	⬇️
s2_tests	77.43% <ø> (+0.81%)	⬆️

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