diff --git a/docs/source/user-guide/sql/datafusion-functions.md b/docs/source/user-guide/sql/datafusion-functions.md
index e37ba11e84c4..651fe7576c78 100644
--- a/docs/source/user-guide/sql/datafusion-functions.md
+++ b/docs/source/user-guide/sql/datafusion-functions.md
@@ -17,94 +17,6 @@
   under the License.
 -->
 
-# DataFusion-Specific Functions
+# DataFusion Functions
 
-These SQL functions are specific to DataFusion, or they are well known and have functionality which is specific to DataFusion. Specifically, the `to_timestamp_xx()` functions exist due to Arrow's support for multiple timestamp resolutions.
-
-## `to_timestamp`
-
-`to_timestamp()` is similar to the standard SQL function. It performs conversions to type `Timestamp(Nanoseconds, None)`, from:
-
-- Timestamp strings
-  - `1997-01-31T09:26:56.123Z` # RCF3339
-  - `1997-01-31T09:26:56.123-05:00` # RCF3339
-  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
-  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
-  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
-  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
-- An Int64 array/column, values are nanoseconds since Epoch UTC
-- Other Timestamp() columns or values
-
-Note that conversions from other Timestamp and Int64 types can also be performed using `CAST(.. AS Timestamp)`. However, the conversion functionality here is present for consistency with the other `to_timestamp_xx()` functions.
-
-## `to_timestamp_millis`
-
-`to_timestamp_millis()` does conversions to type `Timestamp(Milliseconds, None)`, from:
-
-- Timestamp strings, the same as supported by the regular timestamp() function (except the output is a timestamp of Milliseconds resolution)
-  - `1997-01-31T09:26:56.123Z` # RCF3339
-  - `1997-01-31T09:26:56.123-05:00` # RCF3339
-  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
-  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
-  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
-  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
-- An Int64 array/column, values are milliseconds since Epoch UTC
-- Other Timestamp() columns or values
-
-Note that `CAST(.. AS Timestamp)` converts to Timestamps with Nanosecond resolution; this function is the only way to convert/cast to millisecond resolution.
-
-## `to_timestamp_micros`
-
-`to_timestamp_micros()` does conversions to type `Timestamp(Microseconds, None)`, from:
-
-- Timestamp strings, the same as supported by the regular timestamp() function (except the output is a timestamp of microseconds resolution)
-  - `1997-01-31T09:26:56.123Z` # RCF3339
-  - `1997-01-31T09:26:56.123-05:00` # RCF3339
-  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
-  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
-  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
-  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
-- An Int64 array/column, values are microseconds since Epoch UTC
-- Other Timestamp() columns or values
-
-Note that `CAST(.. AS Timestamp)` converts to Timestamps with Nanosecond resolution; this function is the only way to convert/cast to microsecond resolution.
-
-## `to_timestamp_seconds`
-
-`to_timestamp_seconds()` does conversions to type `Timestamp(Seconds, None)`, from:
-
-- Timestamp strings, the same as supported by the regular timestamp() function (except the output is a timestamp of secondseconds resolution)
-  - `1997-01-31T09:26:56.123Z` # RCF3339
-  - `1997-01-31T09:26:56.123-05:00` # RCF3339
-  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
-  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
-  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
-  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
-- An Int64 array/column, values are seconds since Epoch UTC
-- Other Timestamp() columns or values
-
-Note that `CAST(.. AS Timestamp)` converts to Timestamps with Nanosecond resolution; this function is the only way to convert/cast to seconds resolution.
-
-## `extract`
-
-`extract(field FROM source)`
-
-- The `extract` function retrieves subfields such as year or hour from date/time values.
-  `source` must be a value expression of type timestamp, Data32, or Data64. `field` is an identifier that selects what field to extract from the source value.
-  The `extract` function returns values of type u32.
-  - `year` :`extract(year FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 2020`
-  - `month`:`extract(month FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 9`
-  - `week` :`extract(week FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 37`
-  - `day`: `extract(day FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 8`
-  - `hour`: `extract(hour FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 12`
-  - `minute`: `extract(minute FROM to_timestamp('2020-09-08T12:01:00+00:00')) -> 1`
-  - `second`: `extract(second FROM to_timestamp('2020-09-08T12:00:03+00:00')) -> 3`
-
-## `date_part`
-
-`date_part('field', source)`
-
-- The `date_part` function is modeled on the postgres equivalent to the SQL-standard function `extract`.
-  Note that here the field parameter needs to be a string value, not a name.
-  The valid field names for `date_part` are the same as for `extract`.
-  - `date_part('second', to_timestamp('2020-09-08T12:00:12+00:00')) -> 12`
+This content has moved to [scalar functions](scalar-functions.md)
diff --git a/docs/source/user-guide/sql/index.rst b/docs/source/user-guide/sql/index.rst
index f6d3a0bbed3a..97753d708e1b 100644
--- a/docs/source/user-guide/sql/index.rst
+++ b/docs/source/user-guide/sql/index.rst
@@ -25,4 +25,4 @@ SQL Reference
    select
    ddl
    aggregate_functions
-   DataFusion Functions <datafusion-functions>
+   scalar_functions
diff --git a/docs/source/user-guide/sql/scalar_functions.md b/docs/source/user-guide/sql/scalar_functions.md
new file mode 100644
index 000000000000..0791cdf3af83
--- /dev/null
+++ b/docs/source/user-guide/sql/scalar_functions.md
@@ -0,0 +1,296 @@
+<!---
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+
+# Scalar Functions
+
+## Math Functions
+
+### `abs(x)`
+
+absolute value
+
+### `acos(x)`
+
+inverse cosine
+
+### `asin(x)`
+
+inverse sine
+
+### `atan(x)`
+
+inverse tangent
+
+### `atan2(y, x)`
+
+inverse tangent of y / x
+
+### `ceil(x)`
+
+nearest integer greater than or equal to argument
+
+### `cos(x)`
+
+cosine
+
+### `exp(x)`
+
+exponential
+
+### `floor(x)`
+
+nearest integer less than or equal to argument
+
+### `ln(x)`
+
+natural logarithm
+
+### `log10(x)`
+
+base 10 logarithm
+
+### `log2(x)`
+
+base 2 logarithm
+
+### `power(base, exponent)`
+
+base raised to the power of exponent
+
+### `round(x)`
+
+round to nearest integer
+
+### `signum(x)`
+
+sign of the argument (-1, 0, +1)
+
+### `sin(x)`
+
+sine
+
+### `sqrt(x)`
+
+square root
+
+### `tan(x)`
+
+tangent
+
+### `trunc(x)`
+
+truncate toward zero
+
+## Conditional Functions
+
+### `coalesce`
+
+Returns the first of its arguments that is not null. Null is returned only if all arguments are null. It is often used to substitute a default value for null values when data is retrieved for display.
+
+### `nullif`
+
+Returns a null value if value1 equals value2; otherwise it returns value1. This can be used to perform the inverse operation of the `coalesce` expression. |
+
+## String Functions
+
+### `ascii`
+
+### `bit_length`
+
+### `btrim`
+
+### `char_length`
+
+### `character_length`
+
+### `concat`
+
+### `concat_ws`
+
+### `chr`
+
+### `initcap`
+
+### `left`
+
+### `length`
+
+### `lower`
+
+### `lpad`
+
+### `ltrim`
+
+### `md5`
+
+### `octet_length`
+
+### `repeat`
+
+### `replace`
+
+### `reverse`
+
+### `right`
+
+### `rpad`
+
+### `rtrim`
+
+### `digest`
+
+### `split_part`
+
+### `starts_with`
+
+### `strpos`
+
+### `substr`
+
+### `translate`
+
+### `trim`
+
+### `upper`
+
+## Regular Expression Functions
+
+### regexp_match
+
+### regexp_replace
+
+## Temporal Functions
+
+### `to_timestamp`
+
+`to_timestamp()` is similar to the standard SQL function. It performs conversions to type `Timestamp(Nanoseconds, None)`, from:
+
+- Timestamp strings
+  - `1997-01-31T09:26:56.123Z` # RCF3339
+  - `1997-01-31T09:26:56.123-05:00` # RCF3339
+  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
+  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
+  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
+  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
+- An Int64 array/column, values are nanoseconds since Epoch UTC
+- Other Timestamp() columns or values
+
+Note that conversions from other Timestamp and Int64 types can also be performed using `CAST(.. AS Timestamp)`. However, the conversion functionality here is present for consistency with the other `to_timestamp_xx()` functions.
+
+### `to_timestamp_millis`
+
+`to_timestamp_millis()` does conversions to type `Timestamp(Milliseconds, None)`, from:
+
+- Timestamp strings, the same as supported by the regular timestamp() function (except the output is a timestamp of Milliseconds resolution)
+  - `1997-01-31T09:26:56.123Z` # RCF3339
+  - `1997-01-31T09:26:56.123-05:00` # RCF3339
+  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
+  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
+  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
+  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
+- An Int64 array/column, values are milliseconds since Epoch UTC
+- Other Timestamp() columns or values
+
+Note that `CAST(.. AS Timestamp)` converts to Timestamps with Nanosecond resolution; this function is the only way to convert/cast to millisecond resolution.
+
+### `to_timestamp_micros`
+
+`to_timestamp_micros()` does conversions to type `Timestamp(Microseconds, None)`, from:
+
+- Timestamp strings, the same as supported by the regular timestamp() function (except the output is a timestamp of microseconds resolution)
+  - `1997-01-31T09:26:56.123Z` # RCF3339
+  - `1997-01-31T09:26:56.123-05:00` # RCF3339
+  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
+  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
+  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
+  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
+- An Int64 array/column, values are microseconds since Epoch UTC
+- Other Timestamp() columns or values
+
+Note that `CAST(.. AS Timestamp)` converts to Timestamps with Nanosecond resolution; this function is the only way to convert/cast to microsecond resolution.
+
+### `to_timestamp_seconds`
+
+`to_timestamp_seconds()` does conversions to type `Timestamp(Seconds, None)`, from:
+
+- Timestamp strings, the same as supported by the regular timestamp() function (except the output is a timestamp of secondseconds resolution)
+  - `1997-01-31T09:26:56.123Z` # RCF3339
+  - `1997-01-31T09:26:56.123-05:00` # RCF3339
+  - `1997-01-31 09:26:56.123-05:00` # close to RCF3339 but with a space er than T
+  - `1997-01-31T09:26:56.123` # close to RCF3339 but no timezone et specified
+  - `1997-01-31 09:26:56.123` # close to RCF3339 but uses a space and timezone offset
+  - `1997-01-31 09:26:56` # close to RCF3339, no fractional seconds
+- An Int64 array/column, values are seconds since Epoch UTC
+- Other Timestamp() columns or values
+
+Note that `CAST(.. AS Timestamp)` converts to Timestamps with Nanosecond resolution; this function is the only way to convert/cast to seconds resolution.
+
+### `extract`
+
+`extract(field FROM source)`
+
+- The `extract` function retrieves subfields such as year or hour from date/time values.
+  `source` must be a value expression of type timestamp, Data32, or Data64. `field` is an identifier that selects what field to extract from the source value.
+  The `extract` function returns values of type u32.
+  - `year` :`extract(year FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 2020`
+  - `month`:`extract(month FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 9`
+  - `week` :`extract(week FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 37`
+  - `day`: `extract(day FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 8`
+  - `hour`: `extract(hour FROM to_timestamp('2020-09-08T12:00:00+00:00')) -> 12`
+  - `minute`: `extract(minute FROM to_timestamp('2020-09-08T12:01:00+00:00')) -> 1`
+  - `second`: `extract(second FROM to_timestamp('2020-09-08T12:00:03+00:00')) -> 3`
+
+### `date_part`
+
+`date_part('field', source)`
+
+- The `date_part` function is modeled on the postgres equivalent to the SQL-standard function `extract`.
+  Note that here the field parameter needs to be a string value, not a name.
+  The valid field names for `date_part` are the same as for `extract`.
+  - `date_part('second', to_timestamp('2020-09-08T12:00:12+00:00')) -> 12`
+
+### `date_trunc`
+
+### `date_bin`
+
+### `from_unixtime`
+
+### `now`
+
+current time
+
+## Other Functions
+
+### `array`
+
+### `in_list`
+
+### `random`
+
+### `sha224`
+
+### `sha256`
+
+### `sha384`
+
+### `sha512`
+
+### `struct`
+
+### `to_hex`