englefly commented on code in PR #52048:
URL: https://github.com/apache/doris/pull/52048#discussion_r2161260030
##########
fe/fe-core/src/main/java/org/apache/doris/statistics/ColumnStatistic.java:
##########
@@ -395,4 +413,33 @@ public static ColumnStatistic
createUnknownByDataType(DataType dataType) {
.build();
}
}
+
+ /**
+ * Get the map of column value and its row count percentage in the table.
+ * The hotValue is like:
+ * value1:percent1;value2:percent2;value3:percent3
+ * We only return the column value whose percentage is larger than 30%.
+ * @return Map of value -> percentage.
+ */
+ public Map<String, Float> getHotValues() {
+ if (hotValue == null || hotValue.isEmpty()) {
Review Comment:
replace String key by literal key, please
Maybe we should cache this map for performance reason
##########
fe/fe-core/src/main/java/org/apache/doris/analysis/ShowColumnStatsStmt.java:
##########
@@ -72,6 +72,7 @@ public class ShowColumnStatsStmt extends ShowStmt implements
NotFallbackInParser
.add("update_rows")
.add("last_analyze_row_count")
.add("last_analyze_version")
+ .add("hot_value")
Review Comment:
hot_value->hot_values
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