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Broker Query API

REST API on the Broker

Pinot can be queried via a broker endpoint as follows. This example assumes broker is running on localhost:8099

{% tabs %} {% tab title="SQL endpoint" %} The Pinot REST API can be accessed by invoking POST operation with a JSON body containing the parameter sql to the /query/sql endpoint on a broker.

When TLS/SSL is not enabled:

$ curl -H "Content-Type: application/json" -X POST \
   -d '{"sql":"select foo, count(*) from myTable group by foo limit 100"}' \
   http://localhost:8099/query/sql

When TLS/SSL is enabled:

$ curl -k -H "Content-Type: application/json" -X POST \
   -d '{"sql":"select foo, count(*) from myTable group by foo limit 100"}' \
   https://localhost:8099/query/sql

If the SQL statement contains ", in the JSON body, it needs to be replaced by '"'"', for example:

$ curl -H "Content-Type: application/json" -X POST \
   -d '{"sql":"select foo, count(*) from myTable where foo='"'"'abc'"'"' limit 100"}' \
   http://localhost:8099/query/sql

{% endtab %}

{% tab title="Multi-stage engine endpoint " %} The multi-stage query engine can be used via a POST operation to the /query endpoint on a broker with a JSON body containing the parameter sql.

When TLS/SSL is not enabled:

$ curl -H "Content-Type: application/json" -X POST \
   -d '{"sql":"select count(*) from a JOIN b ON a.x = b.x"}' \
   http://localhost:8099/query

When TLS/SSL is enabled:

$ curl -k -H "Content-Type: application/json" -X POST \
   -d '{"sql":"select count(*) from a JOIN b ON a.x = b.x"}' \
   https://localhost:8099/query

If the SQL statement contains ", in the JSON body, it needs to be replaced by '"'"', for example:

$ curl -H "Content-Type: application/json" -X POST \
   -d '{"sql":"select count(*) from a JOIN b ON a.x = b.x where foo='"'"'abc'"'"'"}' \
   http://localhost:8099/query

{% endtab %} {% endtabs %}

Query Console

Query Console can be used for running ad hoc queries (checkbox available to query the PQL endpoint). The Query Console can be accessed by entering the <controller host>:<controller port> in your browser

pinot-admin

You can also query using the pinot-admin scripts. Make sure you follow instructions in Getting Pinot to get Pinot locally, and then

cd incubator-pinot/pinot-tools/target/pinot-tools-pkg 
bin/pinot-admin.sh PostQuery \
  -brokerPort 8000 \
  -query "select count(*) from baseballStats"
2020/03/04 12:46:33.459 INFO [PostQueryCommand] [main] Executing command: PostQuery -brokerHost localhost -brokerPort 8000 -query select count(*) from baseballStats
2020/03/04 12:46:33.854 INFO [PostQueryCommand] [main] Result: {"resultTable":{"dataSchema":{"columnDataTypes":["LONG"],"columnNames":["count(*)"]},"rows":[[97889]]},"exceptions":[],"numServersQueried":1,"numServersResponded":1,"numSegmentsQueried":1,"numSegmentsProcessed":1,"numSegmentsMatched":1,"numConsumingSegmentsQueried":0,"numDocsScanned":97889,"numEntriesScannedInFilter":0,"numEntriesScannedPostFilter":0,"numGroupsLimitReached":false,"totalDocs":97889,"timeUsedMs":185,"segmentStatistics":[],"traceInfo":{},"minConsumingFreshnessTimeMs":0}