Added new Mapping & Analysis section

Author: ba0708

Analysis & Analyzers/configuring-built-in-analyzers.md

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+# Adding analyzers to existing indices
+
+## Close `analyzer_test` index
+```
+POST /analyzer_test/_close
+```
+
+## Add new analyzer
+```
+PUT /analyzer_test/_settings
+{
+  "analysis": {
+    "analyzer": {
+      "my_second_analyzer": {
+        "type": "custom",
+        "tokenizer": "standard",
+        "char_filter": ["html_strip"],
+        "filter": [
+          "lowercase",
+          "stop",
+          "asciifolding"
+        ]
+      }
+    }
+  }
+}
+```
+
+## Open `analyzer_test` index
+```
+POST /analyzer_test/_open
+```
+
+## Retrieve index settings
+```
+GET /analyzer_test/_settings
+```

Analysis & Analyzers/creating-custom-analyzers.md

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+# Adding explicit mappings
+
+## Add field mappings for `reviews` index
+```
+PUT /reviews
+{
+  "mappings": {
+    "properties": {
+      "rating": { "type": "float" },
+      "content": { "type": "text" },
+      "product_id": { "type": "integer" },
+      "author": {
+        "properties": {
+          "first_name": { "type": "text" },
+          "last_name": { "type": "text" },
+          "email": { "type": "keyword" }
+        }
+      }
+    }
+  }
+}
+```
+
+## Index a test document
+```
+PUT /reviews/_doc/1
+{
+  "rating": 5.0,
+  "content": "Outstanding course! Bo really taught me a lot about Elasticsearch!",
+  "product_id": 123,
+  "author": {
+    "first_name": "John",
+    "last_name": "Doe",
+    "email": "johndoe123@example.com"
+  }
+}
+```

Analysis & Analyzers/using-analyzers-in-mappings.md

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+# Adding mappings to existing indices
+
+## Add new field mapping to existing index
+```
+PUT /reviews/_mapping
+{
+  "properties": {
+    "created_at": {
+      "type": "date"
+    }
+  }
+}
+```
+
+## Retrieve the mapping
+```
+GET /reviews/_mapping
+```

Analysis & Analyzers/using-the-analyze-api.md

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+# Combining explicit and dynamic mapping
+
+## Create index with one field mapping
+```
+PUT /people
+{
+  "mappings": {
+    "properties": {
+      "first_name": {
+        "type": "text"
+      }
+    }
+  }
+}
+```
+
+## Index a test document with an unmapped field
+```
+POST /people/_doc
+{
+  "first_name": "Bo",
+  "last_name": "Andersen"
+}
+```
+
+## Retrieve mapping
+```
+GET /people/_mapping
+```
+
+## Clean up
+```
+DELETE /people
+```

Mapping & Analysis/adding-analyzers-to-existing-indices.md

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+# Configuring dynamic mapping
+
+## Disable dynamic mapping
+```
+PUT /people
+{
+  "mappings": {
+    "dynamic": false,
+    "properties": {
+      "first_name": {
+        "type": "text"
+      }
+    }
+  }
+}
+```
+
+## Set dynamic mapping to `strict`
+```
+PUT /people
+{
+  "mappings": {
+    "dynamic": "strict",
+    "properties": {
+      "first_name": {
+        "type": "text"
+      }
+    }
+  }
+}
+```
+
+## Index a test document
+```
+POST /people/_doc
+{
+  "first_name": "Bo",
+  "last_name": "Andersen"
+}
+```
+
+## Retrieve mapping
+```
+GET /people/_mapping
+```
+
+## Search `first_name` field
+```
+GET /people/_search
+{
+  "query": {
+    "match": {
+      "first_name": "Bo"
+    }
+  }
+}
+```
+
+## Search `last_name` field
+```
+GET /people/_search
+{
+  "query": {
+    "match": {
+      "last_name": "Andersen"
+    }
+  }
+}
+```
+
+## Clean up
+```
+DELETE /people
+```