[Backport 2.18] Add link to default field documentation

_query-dsl/full-text/match-bool-prefix.md

@@ -216,7 +216,7 @@ The `<field>` accepts the following parameters. All parameters except `query` ar
 Parameter | Data type | Description
 :--- | :--- | :---
 `query` | String | The text, number, Boolean value, or date to use for search. Required.
-`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index.
+`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index. For more information about `index.query.default_field`, see [Dynamic index-level index settings]({{site.url}}{{site.baseurl}}/install-and-configure/configuring-opensearch/index-settings/#dynamic-index-level-index-settings).
 `fuzziness` | `AUTO`, `0`, or a positive integer | The number of character edits (insert, delete, substitute) that it takes to change one word to another when determining whether a term matched a value. For example, the distance between `wined` and `wind` is 1. The default, `AUTO`, chooses a value based on the length of each term and is a good choice for most use cases.
 `fuzzy_rewrite` | String | Determines how OpenSearch rewrites the query. Valid values are `constant_score`, `scoring_boolean`, `constant_score_boolean`, `top_terms_N`, `top_terms_boost_N`, and `top_terms_blended_freqs_N`. If the `fuzziness` parameter is not `0`, the query uses a `fuzzy_rewrite` method of `top_terms_blended_freqs_${max_expansions}` by default. Default is `constant_score`. 
 `fuzzy_transpositions` | Boolean | Setting `fuzzy_transpositions` to `true` (default) adds swaps of adjacent characters to the insert, delete, and substitute operations of the `fuzziness` option. For example, the distance between `wind` and `wnid` is 1 if `fuzzy_transpositions` is true (swap "n" and "i") and 2 if it is false (delete "n", insert "n"). If `fuzzy_transpositions` is false, `rewind` and `wnid` have the same distance (2) from `wind`, despite the more human-centric opinion that `wnid` is an obvious typo. The default is a good choice for most use cases.

_query-dsl/full-text/match-phrase.md

@@ -268,6 +268,6 @@ The `<field>` accepts the following parameters. All parameters except `query` ar
 Parameter | Data type | Description
 :--- | :--- | :---
 `query` | String | The query string to use for search. Required.
-`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index.
+`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index. For more information about `index.query.default_field`, see [Dynamic index-level index settings]({{site.url}}{{site.baseurl}}/install-and-configure/configuring-opensearch/index-settings/#dynamic-index-level-index-settings).
 `slop` | `0` (default) or a positive integer | Controls the degree to which words in a query can be misordered and still be considered a match. From the [Lucene documentation](https://lucene.apache.org/core/8_9_0/core/org/apache/lucene/search/PhraseQuery.html#getSlop--): "The number of other words permitted between words in query phrase. For example, to switch the order of two words requires two moves (the first move places the words atop one another), so to permit reorderings of phrases, the slop must be at least two. A value of zero requires an exact match."
 `zero_terms_query` | String | In some cases, the analyzer removes all terms from a query string. For example, the `stop` analyzer removes all terms from the string `an but this`. In those cases, `zero_terms_query` specifies whether to match no documents (`none`) or all documents (`all`). Valid values are `none` and `all`. Default is `none`.

_query-dsl/full-text/match.md

@@ -451,7 +451,7 @@ Parameter | Data type | Description
 :--- | :--- | :---
 `query` | String | The query string to use for search. Required.
 `auto_generate_synonyms_phrase_query` | Boolean | Specifies whether to create a [match phrase query]({{site.url}}{{site.baseurl}}/query-dsl/full-text/match-phrase/) automatically for multi-term synonyms. For example, if you specify `ba,batting average` as synonyms and search for `ba`, OpenSearch searches for `ba OR "batting average"` (if this option is `true`) or `ba OR (batting AND average)` (if this option is `false`). Default is `true`.
-`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index.
+`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index. For more information about `index.query.default_field`, see [Dynamic index-level index settings]({{site.url}}{{site.baseurl}}/install-and-configure/configuring-opensearch/index-settings/#dynamic-index-level-index-settings).
 `boost` | Floating-point | Boosts the clause by the given multiplier. Useful for weighing clauses in compound queries. Values in the [0, 1) range decrease relevance, and values greater than 1 increase relevance. Default is `1`.
 `enable_position_increments` | Boolean | When `true`, resulting queries are aware of position increments. This setting is useful when the removal of stop words leaves an unwanted "gap" between terms. Default is `true`.
 `fuzziness` | String | The number of character edits (insertions, deletions, substitutions, or transpositions) that it takes to change one word to another when determining whether a term matched a value. For example, the distance between `wined` and `wind` is 1. Valid values are non-negative integers or `AUTO`. The default, `AUTO`, chooses a value based on the length of each term and is a good choice for most use cases.

_query-dsl/full-text/multi-match.md

@@ -900,9 +900,9 @@ Parameter | Data type | Description
 :--- | :--- | :---
 `query` | String | The query string to use for search. Required.
 `auto_generate_synonyms_phrase_query` | Boolean | Specifies whether to create a [match phrase query]({{site.url}}{{site.baseurl}}/query-dsl/full-text/match-phrase/) automatically for multi-term synonyms. For example, if you specify `ba,batting average` as synonyms and search for `ba`, OpenSearch searches for `ba OR "batting average"` (if this option is `true`) or `ba OR (batting AND average)` (if this option is `false`). Default is `true`.
-`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index.
+`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index. For more information about `index.query.default_field`, see [Dynamic index-level index settings]({{site.url}}{{site.baseurl}}/install-and-configure/configuring-opensearch/index-settings/#dynamic-index-level-index-settings).
 `boost` | Floating-point | Boosts the clause by the given multiplier. Useful for weighing clauses in compound queries. Values in the [0, 1) range decrease relevance, and values greater than 1 increase relevance. Default is `1`.
-`fields` | Array of strings | The list of fields in which to search. If you don't provide the `fields` parameter, `multi_match` query searches the fields specified in the `index.query. Default_field` setting, which defaults to `*`. 
+`fields` | Array of strings | The list of fields in which to search. If you don't provide the `fields` parameter, `multi_match` query searches the fields specified in the `index.query.default_field` setting, which defaults to `*`. 
 `fuzziness` | String | The number of character edits (insert, delete, substitute) that it takes to change one word to another when determining whether a term matched a value. For example, the distance between `wined` and `wind` is 1. Valid values are non-negative integers or `AUTO`. The default, `AUTO`, chooses a value based on the length of each term and is a good choice for most use cases. Not supported for `phrase`, `phrase_prefix`, and `cross_fields` queries.
 `fuzzy_rewrite` | String | Determines how OpenSearch rewrites the query. Valid values are `constant_score`, `scoring_boolean`, `constant_score_boolean`, `top_terms_N`, `top_terms_boost_N`, and `top_terms_blended_freqs_N`. If the `fuzziness` parameter is not `0`, the query uses a `fuzzy_rewrite` method of `top_terms_blended_freqs_${max_expansions}` by default. Default is `constant_score`. 
 `fuzzy_transpositions` | Boolean | Setting `fuzzy_transpositions` to `true` (default) adds swaps of adjacent characters to the insert, delete, and substitute operations of the `fuzziness` option. For example, the distance between `wind` and `wnid` is 1 if `fuzzy_transpositions` is true (swap "n" and "i") and 2 if it is false (delete "n", insert "n"). If `fuzzy_transpositions` is false, `rewind` and `wnid` have the same distance (2) from `wind`, despite the more human-centric opinion that `wnid` is an obvious typo. The default is a good choice for most use cases.

_query-dsl/full-text/query-string.md

@@ -623,7 +623,7 @@ Parameter | Data type | Description
 `query` | String | The text that may contain expressions in the [query string syntax](#query-string-syntax) to use for search. Required.
 `allow_leading_wildcard` | Boolean | Specifies whether `*` and `?` are allowed as first characters of a search term. Default is `true`.
 `analyze_wildcard` | Boolean | Specifies whether OpenSearch should attempt to analyze wildcard terms. Default is `false`.
-`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index.
+`analyzer` | String | The [analyzer]({{site.url}}{{site.baseurl}}/analyzers/index/) used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index. For more information about `index.query.default_field`, see [Dynamic index-level index settings]({{site.url}}{{site.baseurl}}/install-and-configure/configuring-opensearch/index-settings/#dynamic-index-level-index-settings).
 `auto_generate_synonyms_phrase_query` | Boolean | Specifies whether to create a [match phrase query]({{site.url}}{{site.baseurl}}/query-dsl/full-text/match-phrase/) automatically for multi-term synonyms. For example, if you specify `ba, batting average` as synonyms and search for `ba`, OpenSearch searches for `ba OR "batting average"` (if this option is `true`) or `ba OR (batting AND average)` (if this option is `false`). Default is `true`.
 `boost` | Floating-point | Boosts the clause by the given multiplier. Useful for weighing clauses in compound queries. Values in the [0, 1) range decrease relevance, and values greater than 1 increase relevance. Default is `1`. 
 `default_field` | String | The field in which to search if the field is not specified in the query string. Supports wildcards. Defaults to the value specified in the `index.query. Default_field` index setting. By default, the `index.query. Default_field` is `*`, which means extract all fields eligible for term query and filter the metadata fields. The extracted fields are combined into a query if the `prefix` is not specified. Eligible fields do not include nested documents. Searching all eligible fields could be a resource-intensive operation. The `indices.query.bool.max_clause_count` search setting defines the maximum value for the product of the number of fields and the number of terms that can be queried at one time. The default value for `indices.query.bool.max_clause_count` is 1,024.

_query-dsl/full-text/simple-query-string.md

@@ -355,7 +355,7 @@ Parameter | Data type | Description
 :--- | :--- | :---
 `query`| String | The text that may contain expressions in the [simple query string syntax](#simple-query-string-syntax) to use for search. Required.
 `analyze_wildcard` | Boolean | Specifies whether OpenSearch should attempt to analyze wildcard terms. Default is `false`.
-`analyzer` | String | The analyzer used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index.
+`analyzer` | String | The analyzer used to tokenize the query string text. Default is the index-time analyzer specified for the `default_field`. If no analyzer is specified for the `default_field`, the `analyzer` is the default analyzer for the index. For more information about `index.query.default_field`, see [Dynamic index-level index settings]({{site.url}}{{site.baseurl}}/install-and-configure/configuring-opensearch/index-settings/#dynamic-index-level-index-settings).
 `auto_generate_synonyms_phrase_query` | Boolean | Specifies whether to create [match_phrase queries]({{site.url}}{{site.baseurl}}/query-dsl/full-text/match/) automatically for multi-term synonyms. Default is `true`.
 `default_operator`| String | If the query string contains multiple search terms, whether all terms need to match (`AND`) or only one term needs to match (`OR`) for a document to be considered a match. Valid values are:<br>- `OR`: The string `to be` is interpreted as `to OR be`<br>- `AND`: The string `to be` is interpreted as `to AND be`<br> Default is `OR`.
 `fields` | String array | The list of fields to search (for example, `"fields": ["title^4", "description"]`). Supports wildcards. If unspecified, defaults to the `index.query.default_field` setting, which defaults to `["*"]`. The maximum number of fields that can be searched at the same time is defined by `indices.query.bool.max_clause_count`, which is 1,024 by default.