Observation module exports observationMessage and isDbListenerBug functions. The first one is used only in Logger module and the second one - only in Listener.
This change moves observationMessage function to Logger module and isDbListenerBug function to Listener module, making all three modules more cohesive and lessening dependencies.
It also gives the compiler more opportunities for intra-module inlining and optimization.
Add a new section "Client Error Verbosity". Move the details from
the config page to this section and link it.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
Listener has its own backoff logic independent of schema cache loading. It also uses listener delay value to identify its retries and to trigger schema cache reloads upon failures.
If schema cache reloading sets listener delay it might lead to some unexpected reloading loops.
That's especially important in set ups where listener connection points to master and the pool to replica(s).
Set error verbosity using this config. The verbosity can
be set to `verbose` or `minimal` for client error responses.
This only affects client side HTTP responses, server side logs
are not affected by this config.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
Towards #4088.
- Some of these instances are not used. Reduces number of lines
significantly.
- Removing this gives us more flexibility for cases like conditional
encoding based on some outside parameter, without needing to
add the conditional at type level.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
The `Error.hs` module is getting bloated. This moves types
to another module for better separation of concerns.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
stateLogDebouncePoolTimeout is an MVar initialized on the first logging of PoolAcqTimeoutObs. The code in logWithDebounce has race condition that could lead to creation of multiple debouncers.
This change simplifies logic by getting rid of lazy initialization of debouncer.
PoolAcqTimeoutObs is always created with SQL.AcquisitionTimeoutUsageError so the parameter does not provide any useful information.
On the other hand, it complicates debouncing logic in Logger as logWithDebounce has to lazily create the debouncer (which is error prone and hence the logic has a race condition).
This change removes the parameter from PoolAcqTimeoutObs. It is a prerequisite to simplifying logWithDebounce.
Fixes#4646. Using the repro on #4646, this now produces the log:
```
11/Feb/2026:09:40:08 -0500: Warp server error: stack overflow
```
When:
```
$ curl localhost:3000/
curl: (52) Empty reply from server
```
- Move privileges and grants to privileges.sql
- Move schema, tables and functions to schema.sql
- Move global database settings to database.sql
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
Diagnosing problems with listener channel notifications not being handled properly by PostgREST connected to read replicas is difficult. Issues might be related to lost connections and listener not being connected to the right host after failover or database server restarts.
This patch adds logging of actual host:port used by libpq connection opened by the listener. It should make it easier to find out if PostgREST is connected to the right host.
The coverage workflow mentions that we run the tests against PG 15,
however that is incorrect and misleading. We actually run it against the
latest supported PostgreSQL version according to the nix scripts.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
The logic to evaluate `JSPath` belongs to `JSPath.hs` module.
Hence, moving this logic from `Auth/Jwt.hs` to here.
Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>
* Calculation of hint message when requested relation is not present in schema cache requires creation of a FuzzySet (to use fuzzy search to find candidate tables). For schemas with many tables it is costly.
This patch introduces dbTablesFuzzyIndex in SchemaCache to memoize the FuzzySet creation.
* Additionally, because of FuzzySet large memory requirements, this patch introduces a limit of 500 relations per schema, above which FuzzySet is not created and hint calculation disabled.
