Added queries for mapping section

Mapping/adding-mappings-to-existing-indices.md

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+# Adding mappings to existing indices
+
+## Adding mapping for `discount` field
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "discount": {
+      "type": "double"
+    }
+  }
+}
+```
+
+## Retrieving mapping
+
+```
+GET /product/default/_mapping
+```

Mapping/adding-multi-fields-mappings.md

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+# Adding multi-fields mappings
+
+## Adding mappings
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "description": {
+      "type": "text"
+    },
+    "name": {
+      "type": "text",
+      "fields": {
+        "keyword": {
+          "type": "keyword"
+        }
+      }
+    },
+    "tags": {
+      "type": "text",
+      "fields": {
+        "keyword": {
+          "type": "keyword"
+        }
+      }
+    }
+  }
+}
+```
+
+## Retrieving mapping
+
+```
+GET /product/default/_mapping
+```

Mapping/changing-existing-mappings.md

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+# Changing existing mappings
+
+## Deleting the index
+
+```
+DELETE /product
+```
+
+## Creating index with mappings
+
+```
+PUT /product
+{
+  "mappings": {
+    "default": {
+      "dynamic": false,
+      "properties": {
+        "in_stock": {
+          "type": "integer"
+        },
+        "is_active": {
+          "type": "boolean"
+        },
+        "price": {
+          "type": "integer"
+        },
+        "sold": {
+          "type": "long"
+        }
+      }
+    }
+  }
+}
+```

Mapping/defining-custom-date-formats.md

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+# Defining custom date formats
+
+## Date mapping with `year` format
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "created": {
+      "type": "date",
+      "format": "year"
+    }
+  }
+}
+```
+
+## Date mapping with `strict_year` format
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "created": {
+      "type": "date",
+      "format": "strict_year"
+    }
+  }
+}
+```
+
+## Date mapping with explicit default format
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "created": {
+      "type": "date",
+      "format": "strict_date_optional_time||epoch_millis"
+    }
+  }
+}
+```
+
+## Date mapping with date and optional time
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "created": {
+      "type": "date",
+      "format": "yyyy/MM/dd HH:mm:ss||yyyy/MM/dd"
+    }
+  }
+}
+```

Mapping/dynamic-mapping.md

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+# Dynamic mapping
+
+## Retrieving mapping
+
+```
+GET /product/default/_mapping
+```

Mapping/picking-up-new-fields-without-dynamic-mapping.md

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+# Picking up new fields without dynamic mapping
+
+## Adding test document
+
+```
+POST /product/default/2000
+{
+  "description": "Test",
+  "discount": 20
+}
+```
+
+## Adding mapping for `discount` field
+
+```
+PUT /product/default/_mapping
+{
+  "properties": {
+    "discount": {
+      "type": "integer"
+    }
+  }
+}
+```
+
+## Querying the `description` field
+
+```
+GET /product/default/_search
+{
+  "query": {
+    "match": {
+      "description": "Test"
+    }
+  }
+}
+```
+
+## Querying the `discount` field
+
+```
+GET /product/default/_search
+{
+  "query": {
+    "term": {
+      "discount": 20
+    }
+  }
+}
+```
+
+## Picking up new mappings for documents
+
+```
+POST /product/_update_by_query?conflicts=proceed
+```
+
+## Deleting the test document
+
+```
+DELETE /product/default/2000
+```