NullPointer on TEXT_MATCH Queries

Hello,

Currently I am having a config with following for real time ingestion I have enabled Text Index. When I try to query the data with TEXT_MATCH an error is throwing. Why it is so, Is this the right way to enable Text indexing?

Error:
`[
{
"errorCode": 200,
"message": "QueryExecutionError:\njava.lang.NullPointerException\n\tat org.apache.pinot.core.operator.filter.TextMatchFilterOperator.getNextBlock(TextMatchFilterOperator.java:45)\n\tat org.apache.pinot.core.operator.filter.TextMatchFilterOperator.getNextBlock(TextMatchFilterOperator.java:30)\n\tat org.apache.pinot.core.operator.BaseOperator.nextBlock(BaseOperator.java:49)\n\tat org.apache.pinot.core.operator.DocIdSetOperator.getNextBlock(DocIdSetOperator.java:62)\n\tat org.apache.pinot.core.operator.DocIdSetOperator.getNextBlock(DocIdSetOperator.java:35)\n\tat org.apache.pinot.core.operator.BaseOperator.nextBlock(BaseOperator.java:49)\n\tat org.apache.pinot.core.operator.ProjectionOperator.getNextBlock(ProjectionOperator.java:57)\n\tat org.apache.pinot.core.operator.ProjectionOperator.getNextBlock(ProjectionOperator.java:30)\n\tat org.apache.pinot.core.operator.BaseOperator.nextBlock(BaseOperator.java:49)\n\tat org.apache.pinot.core.operator.transform.TransformOperator.getNextBlock(TransformOperator.java:92)\n\tat org.apache.pinot.core.operator.transform.TransformOperator.getNextBlock(TransformOperator.java:39)\n\tat org.apache.pinot.core.operator.BaseOperator.nextBlock(BaseOperator.java:49)\n\tat org.apache.pinot.core.operator.query.SelectionOnlyOperator.getNextBlock(SelectionOnlyOperator.java:77)\n\tat org.apache.pinot.core.operator.query.SelectionOnlyOperator.getNextBlock(SelectionOnlyOperator.java:38)"
}
]`

Config
```
{
"tableName": "log",
"tableType": "REALTIME",
"ingestionConfig": {
},
"segmentsConfig": {
"timeColumnName": "five_mins_epoch",
"timeType": "MINUTES",
"retentionTimeUnit": "DAYS",
"retentionTimeValue": "7",
"schemaName": "log",
"replication": "2",
"replicasPerPartition": "2",
"segmentPushType": "APPEND",
"completionConfig": {
"completionMode": "DOWNLOAD"
}
},
"tenants": {
},
"tableIndexConfig": {
"loadMode": "MMAP",
"sortedColumn": ["timemillis"],
"fieldConfigList": [
{
"name": "log",
"encodingType": "RAW",
"indexType": "TEXT",
"properties": {
"enableQueryCacheForTextIndex": "true",
"deriveNumDocsPerChunkForRawIndex": "true"
}
},
{
"name": "container_name",
"encodingType": "RAW",
"indexType": "TEXT",
"properties": {
"enableQueryCacheForTextIndex": "true",
"deriveNumDocsPerChunkForRawIndex": "true"
}
},
{
"name": "pod_name",
"encodingType": "RAW",
"indexType": "TEXT",
"properties": {
"enableQueryCacheForTextIndex": "true",
"deriveNumDocsPerChunkForRawIndex": "true"
}
},
{
"name": "namespace_name",
"encodingType": "RAW",
"indexType": "TEXT",
"properties": {
"enableQueryCacheForTextIndex": "true",
"deriveNumDocsPerChunkForRawIndex": "true"
}
},
{
"name": "host",
"encodingType": "RAW",
"indexType": "TEXT",
"properties": {
"enableQueryCacheForTextIndex": "true",
"deriveNumDocsPerChunkForRawIndex": "true"
}
},
{
"name": "cluster",
"encodingType": "RAW",
"indexType": "TEXT",
"properties": {
"enableQueryCacheForTextIndex": "true",
"deriveNumDocsPerChunkForRawIndex": "true"
}
}],
"streamConfigs": {
"streamType": "kafka",
"stream.kafka.consumer.type": "simple",
"stream.kafka.topic.name": "all_logs",
"stream.kafka.decoder.class.name": "org.apache.pinot.plugin.stream.kafka.KafkaJSONMessageDecoder",
"stream.kafka.consumer.factory.class.name": "org.apache.pinot.plugin.stream.kafka20.KafkaConsumerFactory",
"stream.kafka.zk.broker.url": "cp-zookeeper-headless.logging.svc.cluster.local:2181",
"stream.kafka.broker.list": "cp-kafka-headless.logging.svc.cluster.local:9092",
"realtime.segment.flush.threshold.time": "12h",
"realtime.segment.flush.threshold.size": "100000",
"stream.kafka.consumer.prop.auto.offset.reset": "smallest"
}
},
"metadata": {
"customConfigs": {}
}
}

schema.json:
{
"schemaName": "log",
"dimensionFieldSpecs": [
{
"name": "log",
"dataType": "STRING",
"maxLength": "10000",
"defaultNullValue": ""
},
{
"name": "cluster",
"dataType": "STRING",
"defaultNullValue": ""
},
{
"name": "container_name",
"dataType": "STRING",
"defaultNullValue": ""
},
{
"name": "namespace_name",
"dataType": "STRING",
"defaultNullValue": ""
},
{
"name": "pod_name",
"dataType": "STRING",
"defaultNullValue": ""
},
{
"name": "host",
"dataType": "STRING",
"defaultNullValue": ""
},
{
"name": "timemillis",
"dataType": "LONG",
"defaultNullValue": "100000"
}
],
"metricFieldSpecs": [],
"timeFieldSpec": {
"incomingGranularitySpec": {
"timeType": "MINUTES",
"dataType": "LONG",
"timeFormat": "EPOCH",
"name": "five_mins_epoch"
},
"outgoingGranularitySpec": {
"dataType": "LONG",
"timeType": "MINUTES",
"timeFormat": "EPOCH",
"name": "five_mins_epoch"
}
}
}

```

Start with org.apache.pinot.core.operator.filter.TextMatchFilterOperator.java, especially getNextBlock at line 45, and reproduce the TEXT_MATCH query using the supplied realtime table and schema configuration. Trace which text-index state is null and verify that the query no longer throws a NullPointerException with the reported TEXT index settings.

Written by the indexing model from the issue text.