Query Options

This document contains all the available query options

Supported Query Options

Key	Description	Default Behavior
timeoutMs	Timeout of the query in milliseconds	Use table/broker level timeout
enableNullHandling	Enables advanced null handling. See Null value support for more information.(introduced in 0.11.0)	false (disabled)
explainPlanVerbose	Return verbose result for EXPLAIN query (introduced in 0.11.0)	false (not verbose)
useMultistageEngine	Use multi-stage engine to execute the query (introduced in 0.11.0)	false (use single-stage engine)
maxExecutionThreads	Maximum threads to use to execute the query. Useful to limit the resource usage for expensive queries	Half of the CPU cores for non-group-by queries; all CPU cores for group-by queries
numReplicaGroupsToQuery	When replica-group based routing is enabled, use it to query multiple replica-groups (introduced in 0.11.0)	1 (only query servers within the same replica-group)
minSegmentGroupTrimSize	Minimum groups to keep when trimming groups at the segment level for group-by queries. See Configuration Parameters	Server level config
minServerGroupTrimSize	Minimum groups to keep when trimming groups at the server level for group-by queries. See Configuration Parameters	Server level config
skipIndexes	Which indexes to skip usage of (i.e. scan instead), per-column. This is useful for side-by-side comparison/debugging. There can be cases where the use of an index is actually more expensive than performing a scan of the docs which match other filters. One such example could be a low-selectivity inverted index used in conjunction with another highly selective filter. Config can be specified using url parameter format: skipIndexes='col1=inverted,range&col2=inverted' Possible index types to skip are: sorted, range, inverted, H3. To find out which indexes are used to resolve a given query, use the EXPLAIN query.	null/empty (use all available indexes)
skipUpsert	For upsert-enabled table, skip the effect of upsert and query all the records. See Stream ingestion with Upsert	false (exclude the replaced records)
useStarTree	Useful to debug the star-tree index (introduced in 0.11.0)	true (use star-tree if available)
AndScanReordering	See detailed description	disabled
maxRowsInJoin	Configure maximum rows allowed in join hash-table creation phase	default value read from cluster config pinot.query.join.max.rows if not set, the default will be 2^20 (1024*1024)
inPredicatePreSorted	(Only apply to STRING columns) Indicates that the values in the IN clause is already sorted, so that Pinot doesn't need to sort them again at query time	false (values in IN predicate is not pre-sorted)
inPredicateLookupAlgorithm	(Only apply to STRING columns) The algorithm to use to look up the dictionary ids for the IN clause values. DIVIDE_BINARY_SEARCH: Sort the IN clause values and do binary search on both dictionary and IN clause values at same time to reduce the value lookups SCAN: Sort the IN clause values and scan both dictionary and IN clause values to get the matching dictionary ids PLAIN_BINARY_SEARCH: Do not sort the IN clause values, but directly binary search each IN clause value in the dictionary	DIVIDE_BINARY_SEARCH
maxServerResponseSizeBytes	Long value config indicating the maximum length of the serialized response per server for a query.	Overriding priortiy order: 1. QueryOption -> maxServerResponseSizeBytes 2. QueryOption -> maxQueryResponseSizeBytes 3. TableConfig -> maxServerResponseSizeBytes 4. TableConfig -> maxQueryResponseSizeBytes 5. BrokerConfig -> maxServerResponseSizeBytes 6. BrokerConfig -> maxServerResponseSizeBytes
maxQueryResponseSizeBytes	Long value config indicating the maximum serialized response size across all servers for a query. This value is equally divided across all servers processing the query.	Overriding priortiy order: 1. QueryOption -> maxServerResponseSizeBytes 2. QueryOption -> maxQueryResponseSizeBytes 3. TableConfig -> maxServerResponseSizeBytes 4. TableConfig -> maxQueryResponseSizeBytes 5. BrokerConfig -> maxServerResponseSizeBytes 6. BrokerConfig -> maxServerResponseSizeBytes

Set Query Options

SET statement

After release 0.11.0, query options can be set using the SET statement:

SET key1 = 'value1';
SET key2 = 123;
SELECT * FROM myTable

OPTION keyword (deprecated)

Before release 0.11.0, query options can be appended to the query with the OPTION keyword:

SELECT * FROM myTable OPTION(key1=value1, key2=123)
SELECT * FROM myTable OPTION(key1=value1) OPTION(key2=123)
SELECT * FROM myTable OPTION(timeoutMs=30000)

REST API

Query options can be specified in API using queryOptions as key and ';' separated key-value pairs. Alternatively, we can also use the SET keyword in the sql query.

• Using Controller Admin API

curl -X POST 'http://localhost:9000/sql' \
-d '{
  "sql": "SELECT * FROM myTable",
  "trace": false,
  "queryOptions":"key1=value1;key2=123"
}'

• Using Broker Query API

curl -X POST 'http://localhost:8099/query/sql' \
-d '{
  "sql": "SELECT * FROM myTable;",
  "trace": false,
  "queryOptions":"key1=value1;key2=123"
}'