[ES|QL] Update function metadata (#195175)

This PR updates the function definitions and inline docs based on the
latest metadata from Elasticsearch.

Co-authored-by: Stratoula Kalafateli <efstratia.kalafateli@elastic.co>

packages/kbn-esql-validation-autocomplete/src/definitions/generated/scalar_functions.ts

@@ -1834,6 +1834,22 @@ const greatestDefinition: FunctionDefinition = {
       returnType: 'boolean',
       minParams: 1,
     },
+    {
+      params: [
+        {
+          name: 'first',
+          type: 'date',
+          optional: false,
+        },
+        {
+          name: 'rest',
+          type: 'date',
+          optional: true,
+        },
+      ],
+      returnType: 'date',
+      minParams: 1,
+    },
     {
       params: [
         {
@@ -2072,6 +2088,22 @@ const leastDefinition: FunctionDefinition = {
       returnType: 'boolean',
       minParams: 1,
     },
+    {
+      params: [
+        {
+          name: 'first',
+          type: 'date',
+          optional: false,
+        },
+        {
+          name: 'rest',
+          type: 'date',
+          optional: true,
+        },
+      ],
+      returnType: 'date',
+      minParams: 1,
+    },
     {
       params: [
         {
@@ -5734,6 +5766,45 @@ const replaceDefinition: FunctionDefinition = {
   examples: ['ROW str = "Hello World"\n| EVAL str = REPLACE(str, "World", "Universe")\n| KEEP str'],
 };
 
+// Do not edit this manually... generated by scripts/generate_function_definitions.ts
+const reverseDefinition: FunctionDefinition = {
+  type: 'eval',
+  name: 'reverse',
+  description: i18n.translate('kbn-esql-validation-autocomplete.esql.definitions.reverse', {
+    defaultMessage: 'Returns a new string representing the input string in reverse order.',
+  }),
+  alias: undefined,
+  signatures: [
+    {
+      params: [
+        {
+          name: 'str',
+          type: 'keyword',
+          optional: false,
+        },
+      ],
+      returnType: 'keyword',
+    },
+    {
+      params: [
+        {
+          name: 'str',
+          type: 'text',
+          optional: false,
+        },
+      ],
+      returnType: 'text',
+    },
+  ],
+  supportedCommands: ['stats', 'inlinestats', 'metrics', 'eval', 'where', 'row', 'sort'],
+  supportedOptions: ['by'],
+  validate: undefined,
+  examples: [
+    'ROW message = "Some Text" | EVAL message_reversed = REVERSE(message);',
+    'ROW bending_arts = "💧🪨🔥💨" | EVAL bending_arts_reversed = REVERSE(bending_arts);',
+  ],
+};
+
 // Do not edit this manually... generated by scripts/generate_function_definitions.ts
 const rightDefinition: FunctionDefinition = {
   type: 'eval',
@@ -8767,6 +8838,7 @@ export const scalarFunctionDefinitions = [
   qstrDefinition,
   repeatDefinition,
   replaceDefinition,
+  reverseDefinition,
   rightDefinition,
   roundDefinition,
   rtrimDefinition,

packages/kbn-language-documentation/src/sections/generated/scalar_functions.tsx

@@ -1906,6 +1906,38 @@ export const functions = {
   | EVAL str = REPLACE(str, "World", "Universe")
   | KEEP str
   \`\`\`
+  `,
+              description:
+                'Text is in markdown. Do not translate function names, special characters, or field names like sum(bytes)',
+              ignoreTag: true,
+            }
+          )}
+        />
+      ),
+    },
+    // Do not edit manually... automatically generated by scripts/generate_esql_docs.ts
+    {
+      label: i18n.translate('languageDocumentation.documentationESQL.reverse', {
+        defaultMessage: 'REVERSE',
+      }),
+      description: (
+        <Markdown
+          openLinksInNewTab
+          readOnly
+          enableSoftLineBreaks
+          markdownContent={i18n.translate(
+            'languageDocumentation.documentationESQL.reverse.markdown',
+            {
+              defaultMessage: `<!--
+  This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
+  -->
+
+  ### REVERSE
+  Returns a new string representing the input string in reverse order.
+
+  \`\`\`
+  ROW message = "Some Text" | EVAL message_reversed = REVERSE(message);
+  \`\`\`
   `,
               description:
                 'Text is in markdown. Do not translate function names, special characters, or field names like sum(bytes)',