docs: reorder search/vector/geospatial groups

docs/en/sql-reference/20-sql-functions/01-bitmap-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Bitmap Functions",
-  "position": 15
-}
+  "position": 16
+}

docs/en/sql-reference/20-sql-functions/05-interval-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Interval Functions",
-  "position": 23
-}
+  "position": 19
+}

docs/en/sql-reference/20-sql-functions/09-geospatial-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Geospatial Functions",
-  "position": 16
+  "position": 11
 }

docs/en/sql-reference/20-sql-functions/10-search-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Full-Text Search Functions",
-  "position": 22
-}
+  "position": 9
+}

docs/en/sql-reference/20-sql-functions/10-semi-structured-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Structured & Semi-Structured",
-  "position": 9
-}
+  "position": 8
+}

docs/en/sql-reference/20-sql-functions/11-vector-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Vector Functions",
-  "position": 21
-}
+  "position": 10
+}

docs/en/sql-reference/20-sql-functions/12-hash-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Hash Functions",
-  "position": 14
-}
+  "position": 15
+}

docs/en/sql-reference/20-sql-functions/13-uuid-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "UUID Functions",
-  "position": 18
-}
+  "position": 17
+}

docs/en/sql-reference/20-sql-functions/14-ip-address-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "IP Address Functions",
-  "position": 19
-}
+  "position": 18
+}

docs/en/sql-reference/20-sql-functions/15-context-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Context Functions",
-  "position": 13
-}
+  "position": 14
+}

docs/en/sql-reference/20-sql-functions/16-system-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "System Functions",
-  "position": 12
-}
+  "position": 13
+}

docs/en/sql-reference/20-sql-functions/17-table-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Table Functions",
-  "position": 10
-}
+  "position": 12
+}

docs/en/sql-reference/20-sql-functions/18-sequence-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Sequence Functions",
-  "position": 24
-}
+  "position": 20
+}

docs/en/sql-reference/20-sql-functions/19-dictionary-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Dictionary Functions",
-  "position": 25
-}
+  "position": 21
+}

docs/en/sql-reference/20-sql-functions/19-test-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Test Functions",
-  "position": 26
-}
+  "position": 22
+}

docs/en/sql-reference/20-sql-functions/20-other-functions/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Other Functions",
-  "position": 27
-}
+  "position": 23
+}

docs/en/sql-reference/20-sql-functions/20-other-functions/index.md

@@ -0,0 +1,16 @@
+---
+title: Other Functions
+---
+
+This section collects assorted utilities that do not fit into the major functional groups.
+
+| Function | Description |
+|----------|-------------|
+| [ASSUME_NOT_NULL](assume-not-null.md) | Hint that values in a nullable column are never NULL |
+| [EXISTS](exists.md) | Return TRUE if a subquery produces any rows |
+| [GROUPING](grouping.md) | Reveal whether an output column was aggregated in GROUPING SETS |
+| [HUMANIZE_NUMBER](humanize-number.md) | Format large numbers with unit suffixes |
+| [HUMANIZE_SIZE](humanize-size.md) | Format byte counts into readable units |
+| [REMOVE_NULLABLE](remove-nullable.md) | Strip NULLability from a column value |
+| [TO_NULLABLE](to-nullable.md) | Convert a value to a nullable type |
+| [TYPEOF](typeof.md) | Return the name of a value’s data type |

docs/en/sql-reference/20-sql-functions/index.md

@@ -11,7 +11,6 @@ Databend provides comprehensive SQL functions for all types of data processing.
 | [Numeric Functions](./04-numeric-functions/index.md) | Mathematical operations and calculations |
 | [String Functions](./06-string-functions/index.md) | Text manipulation and string processing |
 | [Date & Time Functions](./05-datetime-functions/index.md) | Date, time, and temporal operations |
-| [Interval Functions](./05-interval-functions/index.md) | Time unit conversion and interval creation |
 | [Conversion Functions](./02-conversion-functions/index.md) | Type casting and data format conversions |
 | [Conditional Functions](./03-conditional-functions/index.md) | Logic and control flow operations |
 
@@ -21,52 +20,54 @@ Databend provides comprehensive SQL functions for all types of data processing.
 |----------|-------------|
 | [Aggregate Functions](./07-aggregate-functions/index.md) | Statistical calculations across multiple rows |
 | [Window Functions](./08-window-functions/index.md) | Advanced analytics with window operations |
-| [Bitmap Functions](./01-bitmap-functions/index.md) | High-performance bitmap operations and analytics |
 
-## Semi-Structured Data
+## Structured & Semi-Structured Data
 
 | Category | Description |
 |----------|-------------|
-| [Semi-Structured Functions](./10-semi-structured-functions/index.md) | JSON, arrays, objects, and nested data processing |
+| [Structured & Semi-Structured Functions](./10-semi-structured-functions/index.md) | JSON, arrays, objects, and nested data processing |
 
-## AI & Search
+## Search Functions
 
 | Category | Description |
 |----------|-------------|
-| [Vector Functions](./11-vector-functions/index.md) | Vector similarity and distance calculations |
-| [Search Functions](./10-search-functions/index.md) | Full-text search and relevance scoring |
+| [Full-Text Search Functions](./10-search-functions/index.md) | Full-text search and relevance scoring |
 
-## Data Management
+## Vector Functions
 
 | Category | Description |
 |----------|-------------|
-| [Table Functions](./17-table-functions/index.md) | File inspection, data generation, and system information |
-| [Dictionary Functions](./19-dictionary-functions/index.md) | Real-time external data source queries (MySQL, Redis) |
-| [Sequence Functions](./18-sequence-functions/index.md) | Auto-incrementing sequence value generation |
+| [Vector Functions](./11-vector-functions/index.md) | Vector similarity and distance calculations |
 
-## Spatial Functions
+## Geospatial Functions
 
 | Category | Description |
 |----------|-------------|
 | [Geospatial Functions](./09-geospatial-functions/index.md) | Geometry, GeoHash, and H3 spatial operations |
 
-## Security & Integrity
+## Data Management
 
 | Category | Description |
 |----------|-------------|
-| [Hash Functions](./12-hash-functions/index.md) | Data hashing and integrity verification |
-| [UUID Functions](./13-uuid-functions/index.md) | Universally unique identifier generation |
-| [IP Address Functions](./14-ip-address-functions/index.md) | Network address manipulation and validation |
+| [Table Functions](./17-table-functions/index.md) | File inspection, data generation, and system information |
+| [System Functions](./16-system-functions/index.md) | System information and management operations |
+| [Context Functions](./15-context-functions/index.md) | Current session, user, and database information |
 
-## System Functions
+## Security & Integrity
 
 | Category | Description |
 |----------|-------------|
-| [System Functions](./16-system-functions/index.md) | System information and management operations |
-| [Context Functions](./15-context-functions/index.md) | Current session, user, and database information |
+| [Hash Functions](./12-hash-functions/index.md) | Data hashing and integrity verification |
+| [Bitmap Functions](./01-bitmap-functions/index.md) | High-performance bitmap operations and analytics |
+| [UUID Functions](./13-uuid-functions/index.md) | Universally unique identifier generation |
+| [IP Address Functions](./14-ip-address-functions/index.md) | Network address manipulation and validation |
 
-## Development Tools
+## Utility Functions
 
 | Category | Description |
 |----------|-------------|
+| [Interval Functions](./05-interval-functions/index.md) | Time unit conversion and interval creation |
+| [Sequence Functions](./18-sequence-functions/index.md) | Auto-incrementing sequence value generation |
+| [Dictionary Functions](./19-dictionary-functions/index.md) | Real-time external data source queries (MySQL, Redis) |
 | [Test Functions](./19-test-functions/index.md) | Testing and debugging utilities |
+| [Other Functions](./20-other-functions/index.md) | Miscellaneous helpers and utilities |