Jackie-Jiang commented on code in PR #11744:
URL: https://github.com/apache/pinot/pull/11744#discussion_r1355966332
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pinot-spi/src/main/java/org/apache/pinot/spi/config/table/StarTreeIndexConfig.java:
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@@ -42,15 +45,17 @@ public StarTreeIndexConfig(
@JsonProperty(value = "dimensionsSplitOrder", required = true)
List<String> dimensionsSplitOrder,
@JsonProperty("skipStarNodeCreationForDimensions") @Nullable
List<String> skipStarNodeCreationForDimensions,
@JsonProperty(value = "functionColumnPairs", required = true)
List<String> functionColumnPairs,
- @JsonProperty("maxLeafRecords") int maxLeafRecords) {
- Preconditions
- .checkArgument(CollectionUtils.isNotEmpty(dimensionsSplitOrder),
"'dimensionsSplitOrder' must be configured");
- Preconditions
- .checkArgument(CollectionUtils.isNotEmpty(functionColumnPairs),
"'functionColumnPairs' must be configured");
+ @JsonProperty(value = "functionColumnPairsConfig") @Nullable
+ List<FunctionColumnPairConfig> functionColumnPairConfig,
@JsonProperty("maxLeafRecords") int maxLeafRecords) {
Review Comment:
I think we can introduce this new config and eventually deprecate the
existing `functionColumnPairs`. If we want to move towards this direction, we
should merge `functionColumnPairs` into this new config, and always use the new
config when building the star-tree.
This new config is very similar to `AggregationConfig`, maybe we can name it
`StarTreeAggregationConfig`, and the property name being `aggregationConfigs`
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