yashmayya opened a new pull request, #13283:
URL: https://github.com/apache/pinot/pull/13283
- Currently, raw JSON values (non dictionary encoded) can't be queried
directly via predicates like `=`, `!=`, `IN`, `NOT IN` and JSON columns are
typically queried using the `JSON_MATCH` filter predicate that uses the JSON
index.
- Attempting to do so results in errors like:
```
QueryExecutionError:
org.apache.pinot.spi.exception.BadQueryRequestException:
java.lang.IllegalStateException: Unsupported data type: JSON
at
org.apache.pinot.core.operator.filter.predicate.PredicateEvaluatorProvider.getPredicateEvaluator(PredicateEvaluatorProvider.java:94)
at
org.apache.pinot.core.operator.filter.predicate.PredicateEvaluatorProvider.getPredicateEvaluator(PredicateEvaluatorProvider.java:100)
at
org.apache.pinot.core.plan.FilterPlanNode.constructPhysicalOperator(FilterPlanNode.java:310)
at org.apache.pinot.core.plan.FilterPlanNode.run(FilterPlanNode.java:93)
...
Caused by: java.lang.IllegalStateException: Unsupported data type: JSON
at
org.apache.pinot.core.operator.filter.predicate.EqualsPredicateEvaluatorFactory.newRawValueBasedEvaluator(EqualsPredicateEvaluatorFactory.java:87)
at
org.apache.pinot.core.operator.filter.predicate.PredicateEvaluatorProvider.getPredicateEvaluator(PredicateEvaluatorProvider.java:76)
... 24 more
```
- However, for certain simple JSON values, it could be useful to allow
direct comparison using predicates like `=`, `!=`, `IN`, `NOT IN` via direct
string matching like is done for `STRING` columns since the stored type for
JSON columns is also `STRING`.
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