Update documention for metricCompression (#9811)
diff --git a/docs/development/extensions-core/kafka-ingestion.md b/docs/development/extensions-core/kafka-ingestion.md
index 12d937c..e7e2bb2 100644
--- a/docs/development/extensions-core/kafka-ingestion.md
+++ b/docs/development/extensions-core/kafka-ingestion.md
@@ -164,7 +164,7 @@
|-----|----|-----------|--------|
|bitmap|Object|Compression format for bitmap indexes. Should be a JSON object; see below for options.|no (defaults to Roaring)|
|dimensionCompression|String|Compression format for dimension columns. Choose from `LZ4`, `LZF`, or `uncompressed`.|no (default == `LZ4`)|
-|metricCompression|String|Compression format for metric columns. Choose from `LZ4`, `LZF`, `uncompressed`, or `none`.|no (default == `LZ4`)|
+|metricCompression|String|Compression format for primitive type metric columns. Choose from `LZ4`, `LZF`, `uncompressed`, or `none`.|no (default == `LZ4`)|
|longEncoding|String|Encoding format for metric and dimension columns with type long. Choose from `auto` or `longs`. `auto` encodes the values using offset or lookup table depending on column cardinality, and store them with variable size. `longs` stores the value as is with 8 bytes each.|no (default == `longs`)|
##### Bitmap types
diff --git a/docs/development/extensions-core/kinesis-ingestion.md b/docs/development/extensions-core/kinesis-ingestion.md
index e0fcc2d..760df3b 100644
--- a/docs/development/extensions-core/kinesis-ingestion.md
+++ b/docs/development/extensions-core/kinesis-ingestion.md
@@ -163,7 +163,7 @@
|-----|----|-----------|--------|
|bitmap|Object|Compression format for bitmap indexes. Should be a JSON object; see below for options.|no (defaults to Roaring)|
|dimensionCompression|String|Compression format for dimension columns. Choose from `LZ4`, `LZF`, or `uncompressed`.|no (default == `LZ4`)|
-|metricCompression|String|Compression format for metric columns. Choose from `LZ4`, `LZF`, `uncompressed`, or `none`.|no (default == `LZ4`)|
+|metricCompression|String|Compression format for primitive type metric columns. Choose from `LZ4`, `LZF`, `uncompressed`, or `none`.|no (default == `LZ4`)|
|longEncoding|String|Encoding format for metric and dimension columns with type long. Choose from `auto` or `longs`. `auto` encodes the values using sequence number or lookup table depending on column cardinality, and store them with variable size. `longs` stores the value as is with 8 bytes each.|no (default == `longs`)|
##### Bitmap types
diff --git a/docs/ingestion/index.md b/docs/ingestion/index.md
index 5871445..384b051 100644
--- a/docs/ingestion/index.md
+++ b/docs/ingestion/index.md
@@ -732,7 +732,7 @@
|-----|-----------|-------|
|bitmap|Compression format for bitmap indexes. Should be a JSON object with `type` set to `roaring` or `concise`. For type `roaring`, the boolean property `compressRunOnSerialization` (defaults to true) controls whether or not run-length encoding will be used when it is determined to be more space-efficient.|`{"type": "concise"}`|
|dimensionCompression|Compression format for dimension columns. Options are `lz4`, `lzf`, or `uncompressed`.|`lz4`|
-|metricCompression|Compression format for metric columns. Options are `lz4`, `lzf`, `uncompressed`, or `none` (which is more efficient than `uncompressed`, but not supported by older versions of Druid).|`lz4`|
+|metricCompression|Compression format for primitive type metric columns. Options are `lz4`, `lzf`, `uncompressed`, or `none` (which is more efficient than `uncompressed`, but not supported by older versions of Druid).|`lz4`|
|longEncoding|Encoding format for long-typed columns. Applies regardless of whether they are dimensions or metrics. Options are `auto` or `longs`. `auto` encodes the values using offset or lookup table depending on column cardinality, and store them with variable size. `longs` stores the value as-is with 8 bytes each.|`longs`|
Beyond these properties, each ingestion method has its own specific tuning properties. See the documentation for each
diff --git a/processing/src/main/java/org/apache/druid/segment/IndexSpec.java b/processing/src/main/java/org/apache/druid/segment/IndexSpec.java
index d14f927..6edc336 100644
--- a/processing/src/main/java/org/apache/druid/segment/IndexSpec.java
+++ b/processing/src/main/java/org/apache/druid/segment/IndexSpec.java
@@ -82,7 +82,7 @@
* @param dimensionCompression compression format for dimension columns, null to use the default.
* Defaults to {@link CompressionStrategy#DEFAULT_COMPRESSION_STRATEGY}
*
- * @param metricCompression compression format for metric columns, null to use the default.
+ * @param metricCompression compression format for primitive type metric columns, null to use the default.
* Defaults to {@link CompressionStrategy#DEFAULT_COMPRESSION_STRATEGY}
*
* @param longEncoding encoding strategy for metric and dimension columns with type long, null to use the default.
diff --git a/web-console/src/utils/ingestion-spec.tsx b/web-console/src/utils/ingestion-spec.tsx
index f0bd50b..d3472ee 100644
--- a/web-console/src/utils/ingestion-spec.tsx
+++ b/web-console/src/utils/ingestion-spec.tsx
@@ -2420,7 +2420,7 @@
type: 'string',
defaultValue: 'lz4',
suggestions: ['lz4', 'lzf', 'uncompressed'],
- info: <>Compression format for metric columns.</>,
+ info: <>Compression format for primitive type metric columns.</>,
},
{
name: 'indexSpec.longEncoding',
