Files
vikunja/pkg/models
kolaente 1b8167d4cd perf(db): use the pgx driver for postgres
lib/pq sends every query as an unnamed prepared statement, so PostgreSQL
plans each statement from scratch. pgx via database/sql keeps a per-connection
statement cache and reuses named prepared statements instead, removing that
planning cost from the hot path.

xorm already ships a "pgx" driver mapping, so the switch is just the driver
name plus the blank import. The connection string format is unchanged: pgconn
parses the same URL and forwards unknown parameters (search_path) as runtime
parameters.

Named prepared statements do not work through a connection pooler in
transaction pooling mode unless it supports them (PgBouncer 1.21 and later,
with max_prepared_statements above 0). Those setups can raise that setting or
connect to PostgreSQL directly, which is no loss since Vikunja already pools
via database.maxopenconnections.

lib/pq was only used for QuoteIdentifier, which is now inlined.
2026-09-05 23:16:31 +02:00
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