History

Thales Macedo Garitezi 7a16ff4f04 fix(postgres_bridge): fix table existence check and handle sync_required Fixes https://emqx.atlassian.net/browse/EMQX-10629 During health checking, we check whether tables in the SQL statement exist. Such check was done by asking the backend to parse the statement using a named prepared statements. Concurrent health checks could then result in the error: ```erlang {error,{error,error,<<"42P05">>,duplicate_prepared_statement,<<"prepared statement \"get_status\" already exists">>,[{file,<<"prepare.c">>},{line,<<"451">>},{routine,<<"StorePreparedStatement">>},{severity,<<"ERROR">>}]}} ``` This could lead to an inconsistent state in the driver process, which would crash later when a message from the backend (`READY_FOR_QUERY`, "idle"): ``` 2023-07-24T13:05:58.892043+00:00 [error] Generic server <0.2134.0> terminating. Reason: {'module could not be loaded',[{undefined,handle_message,[90,<<"I">>,... ``` Added calls to `epgsql:sync/1` for functions that could return `{error, sync_required}`. Also, redundant calls to `parse2` were removed to reduce the number of requests.		2023-07-25 09:15:14 -03:00
..
src	fix(machine_boot): ensure `emqx_bridge` starts after its companion apps	2023-07-20 13:11:44 -03:00
test	fix(postgres_bridge): fix table existence check and handle sync_required	2023-07-25 09:15:14 -03:00
BSL.txt	chore: create dirs and README template for all ee bridges	2023-04-18 09:36:41 +08:00
docker-ct	refactor(pgsql): move pgsql && matrix && timescale bridges into their own app	2023-05-10 16:51:33 +08:00
README.md	docs: fix invalid links	2023-05-15 11:18:09 +08:00
rebar.config	refactor(pgsql): move pgsql && matrix && timescale bridges into their own app	2023-05-10 16:51:33 +08:00

README.md

EMQX PostgreSQL Bridge

PostgreSQL is an open-source relational database management system (RDBMS) that uses and extends the SQL language. It is known for its reliability, data integrity, and advanced features such as support for JSON, XML, and other data formats.

The application is used to connect EMQX and PostgreSQL. User can create a rule and easily ingest IoT data into PostgreSQL by leveraging EMQX Rules.

Documentation

Refer to Ingest Data into PostgreSQL for how to use EMQX dashboard to ingest IoT data into PostgreSQL.
Refer to EMQX Rules for the EMQX rules engine introduction.

HTTP APIs

Several APIs are provided for bridge management, which includes create bridge, update bridge, get bridge, stop or restart bridge and list bridges etc.

Refer to API Docs - Bridges for more detailed information.

Contributing

Please see our contributing.md.

License

EMQ Business Source License 1.1, refer to LICENSE.