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Database drivers for the dope runtime.

cartel-sqlite requires a private native page cache without global page-cache allocation statistics. Cartel supplies these flags when LIBSQLITE3_FLAGS is unset. Consuming applications must append them to any native flags before building:

export LIBSQLITE3_FLAGS="${LIBSQLITE3_FLAGS:+$LIBSQLITE3_FLAGS }-USQLITE_ENABLE_MEMORY_MANAGEMENT -DSQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS"

Cargo configuration inside a dependency does not propagate to its consumers. Keep SQLite's native threading enabled. Runtime::install rejects incompatible builds before installing allocator hooks or initializing SQLite: GlobalCache when memory management is enabled, then CacheStats when overflow statistics are not disabled.

Run cargo +stable test --workspace. PostgreSQL server tests are ignored by default; run them with env CARTEL_PG_TEST=1 cargo +stable test -p cartel-pg -- --ignored. Enable ltree in the test database first with CREATE EXTENSION ltree;. Connection settings use PG_HOST, PG_PORT, PG_USER, PG_PASSWORD, and PG_DATABASE.

cargo +stable run --release -p cartel-pg --example server_version
cargo +stable run --release -p cartel-redis --example connection

The PostgreSQL example defaults to 127.0.0.1:5432 and bench for the user, password, and database. Redis uses REDIS_ADDR (default 127.0.0.1:6379).

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