qidaye commented on code in PR #40314:
URL: https://github.com/apache/doris/pull/40314#discussion_r1743621434
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fe/fe-core/src/main/java/org/apache/doris/datasource/es/MappingPhase.java:
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@@ -130,6 +130,10 @@ private static void resolveDocValuesFields(SearchContext
searchContext, ObjectNo
if (docValue) {
docValueField = colName;
}
+ } else if (innerTypeObject.has("ignore_above")) {
Review Comment:
1. The default value of `doc_values` is `true`, its behavior is consistent
with explicit set to `true`.
2. [keyword
param](https://www.elastic.co/guide/en/elasticsearch/reference/current/keyword.html#keyword-params)
>
[ignore_above](https://www.elastic.co/guide/en/elasticsearch/reference/current/ignore-above.html)
Do not index any string longer than this value. Defaults to 2147483647 so
that all values would be accepted. Please however note that default dynamic
mapping rules create a sub keyword field that overrides this default by setting
ignore_above: 256.
`ignore_above` default value is `2147483647`.
The special case is the keyword field generated by dynamic mapping, whose
`ignore_above` setting is `256` , which will be shown in mapping explicitly,
and we have taken it into consideration.
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