From d16c6780c7b5c6b7180e0744c55856b1e5b8285d Mon Sep 17 00:00:00 2001
From: johnnymatthews <9611008+johnnymatthews@users.noreply.github.com>
Date: Thu, 25 Jan 2024 11:50:18 -0400
Subject: [PATCH 1/6] Adds basic emptyArrayUIntX docs.

---
 .../functions/array-functions.md              | 174 +++++++++++++++++-
 1 file changed, 172 insertions(+), 2 deletions(-)

diff --git a/docs/en/sql-reference/functions/array-functions.md b/docs/en/sql-reference/functions/array-functions.md
index 2120b675c73..6dea8e89b6a 100644
--- a/docs/en/sql-reference/functions/array-functions.md
+++ b/docs/en/sql-reference/functions/array-functions.md
@@ -19,7 +19,7 @@ empty([x])
 An array is considered empty if it does not contain any elements.
 
 :::note
-Can be optimized by enabling the [optimize_functions_to_subcolumns](../../operations/settings/settings.md#optimize-functions-to-subcolumns) setting. With `optimize_functions_to_subcolumns = 1` the function reads only [size0](../../sql-reference/data-types/array.md#array-size) subcolumn instead of reading and processing the whole array column. The query `SELECT empty(arr) FROM TABLE;` transforms to `SELECT arr.size0 = 0 FROM TABLE;`.
+Can be optimized by enabling the [`optimize_functions_to_subcolumns` setting](../../operations/settings/settings.md#optimize-functions-to-subcolumns). With `optimize_functions_to_subcolumns = 1` the function reads only [size0](../../sql-reference/data-types/array.md#array-size) subcolumn instead of reading and processing the whole array column. The query `SELECT empty(arr) FROM TABLE;` transforms to `SELECT arr.size0 = 0 FROM TABLE;`.
 :::
 
 The function also works for [strings](string-functions.md#empty) or [UUID](uuid-functions.md#empty).
@@ -104,7 +104,177 @@ Can be optimized by enabling the [optimize_functions_to_subcolumns](../../operat
 
 Alias: `OCTET_LENGTH`
 
-## emptyArrayUInt8, emptyArrayUInt16, emptyArrayUInt32, emptyArrayUInt64
+## emptyArrayUInt8
+
+Accepts zero arguments and returns an empty UInt8 array.
+
+**Syntax**
+
+```sql
+emptyArrayUInt8()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt8)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt8());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 255) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1234	Alex	33	[]
+1234	Alex	33	[255]
+```
+
+## emptyArrayUInt16
+
+Accepts zero arguments and returns an empty UInt16 array.
+
+**Syntax**
+
+```sql
+emptyArrayUInt16()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt16)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt16());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 65535) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex    33	[]
+1231	Alex    33	[65535]
+```
+
+## emptyArrayUInt32
+
+Accepts zero arguments and returns an empty UInt32 array.
+
+**Syntax**
+
+```sql
+emptyArrayUInt32()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt32)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt32());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 4294967295) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	[4294967295]
+```
+
+## emptyArrayUInt64
+
+Accepts zero arguments and returns an empty UInt64 array.
+
+**Syntax**
+
+```sql
+emptyArrayUInt64()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt64)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt64());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 18446744073709551615) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	[18446744073709551615]
+```
 
 ## emptyArrayInt8, emptyArrayInt16, emptyArrayInt32, emptyArrayInt64
 

From 515cb59b00ac358a95f65ab7b76b8349bc6e02e7 Mon Sep 17 00:00:00 2001
From: johnnymatthews <9611008+johnnymatthews@users.noreply.github.com>
Date: Thu, 25 Jan 2024 12:29:23 -0400
Subject: [PATCH 2/6] Adds emptyArrayIntX docs.

---
 .../functions/array-functions.md              | 172 +++++++++++++++++-
 1 file changed, 171 insertions(+), 1 deletion(-)

diff --git a/docs/en/sql-reference/functions/array-functions.md b/docs/en/sql-reference/functions/array-functions.md
index 6dea8e89b6a..ebeac4196d7 100644
--- a/docs/en/sql-reference/functions/array-functions.md
+++ b/docs/en/sql-reference/functions/array-functions.md
@@ -276,7 +276,177 @@ Result:
 1231	Alex	33	[18446744073709551615]
 ```
 
-## emptyArrayInt8, emptyArrayInt16, emptyArrayInt32, emptyArrayInt64
+## emptyArrayInt8
+
+Accepts zero arguments and returns an empty Int8 array.
+
+**Syntax**
+
+```sql
+emptyArrayInt8()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int8)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt8());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 127) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1234	Alex	33	[]
+1234	Alex	33	[127]
+```
+
+## emptyArrayInt16
+
+Accepts zero arguments and returns an empty Int16 array.
+
+**Syntax**
+
+```sql
+emptyArrayInt16()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int16)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt16());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 32767) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex    33	[]
+1231	Alex    33	[32767]
+```
+
+## emptyArrayInt32
+
+Accepts zero arguments and returns an empty Int32 array.
+
+**Syntax**
+
+```sql
+emptyArrayInt32()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int32)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt32());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 2147483647) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	[2147483647]
+```
+
+## emptyArrayInt64
+
+Accepts zero arguments and returns an empty Int64 array.
+
+**Syntax**
+
+```sql
+emptyArrayInt64()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int64)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt64());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 9223372036854775807) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	[9223372036854775807]
+```
 
 ## emptyArrayFloat32, emptyArrayFloat64
 

From c3895c3546b66d3d1b8eac0e3e9377d4da9a1f29 Mon Sep 17 00:00:00 2001
From: johnnymatthews <9611008+johnnymatthews@users.noreply.github.com>
Date: Thu, 25 Jan 2024 14:41:32 -0400
Subject: [PATCH 3/6] Adds emptyArrayFloat32/64 docs.

---
 .../functions/array-functions.md              | 86 ++++++++++++++++++-
 1 file changed, 85 insertions(+), 1 deletion(-)

diff --git a/docs/en/sql-reference/functions/array-functions.md b/docs/en/sql-reference/functions/array-functions.md
index ebeac4196d7..471dd0ff3f5 100644
--- a/docs/en/sql-reference/functions/array-functions.md
+++ b/docs/en/sql-reference/functions/array-functions.md
@@ -448,7 +448,91 @@ Result:
 1231	Alex	33	[9223372036854775807]
 ```
 
-## emptyArrayFloat32, emptyArrayFloat64
+## emptyArrayFloat32 
+
+Returns an empty Float32 array. Accepts zero arguments.
+
+**Syntax**
+
+```sql
+emptyArrayFloat32()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int32)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayFloat32());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 3.4e+38) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	[-2147483648]
+```
+
+## emptyArrayFloat64
+
+Accepts zero arguments and returns an empty Float64 array.
+
+**Syntax**
+
+```sql
+emptyArrayFloat64()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayFloat64());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 1.999999999e+9) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	[1999999999]
+```
 
 ## emptyArrayDate, emptyArrayDateTime
 

From ade0f9f75fcf0d8e7394655a1938a16ed86c85a1 Mon Sep 17 00:00:00 2001
From: johnnymatthews <9611008+johnnymatthews@users.noreply.github.com>
Date: Mon, 29 Jan 2024 14:21:58 -0400
Subject: [PATCH 4/6] Adds docs for emptyArrayDate and emptyArrayDateTime.

---
 .../functions/array-functions.md              | 123 +++++++++++++++++-
 1 file changed, 122 insertions(+), 1 deletion(-)

diff --git a/docs/en/sql-reference/functions/array-functions.md b/docs/en/sql-reference/functions/array-functions.md
index 471dd0ff3f5..d811112a861 100644
--- a/docs/en/sql-reference/functions/array-functions.md
+++ b/docs/en/sql-reference/functions/array-functions.md
@@ -536,9 +536,130 @@ Result:
 
 ## emptyArrayDate, emptyArrayDateTime
 
+## emptyArrayDate
+
+Accepts zero arguments and returns an empty Date array.
+
+**Syntax**
+
+```sql
+emptyArrayDate()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, userDates Array(Date)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayDate());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, today()) WHERE uid = 1231;
+ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, addDays(today(), 1)) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+## emptyArrayDateTime
+
+Accepts zero arguments and returns an empty DateTime array.
+
+**Syntax**
+
+```sql
+emptyArrayDateTime()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, userDates Array(DateTime)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayDateTime());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, now()) WHERE uid = 1231;
+ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, addDays(now(), 1)) WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	['2024-01-29 18:08:01','2024-01-30 18:08:01']
+```
+
 ## emptyArrayString
 
-Accepts zero arguments and returns an empty array of the appropriate type.
+Accepts zero arguments and returns an empty String array.
+
+**Syntax**
+
+```sql
+emptyArrayString()
+```
+
+**Arguments**
+
+None.
+
+**Returned value**
+
+An empty array.
+
+**Implementation details**
+
+None.
+
+**Examples**
+
+Query:
+
+```sql
+CREATE TABLE users (uid Int16, name String, age Int16, aliases Array(String)) ENGINE=Memory;
+
+INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayString());
+SELECT * FROM users;
+
+ALTER TABLE users UPDATE aliases = arrayPushBack(aliases, 'Al') WHERE uid = 1231;
+ALTER TABLE users UPDATE aliases = arrayPushBack(aliases, 'Little Alex') WHERE uid = 1231;
+SELECT * FROM users;
+```
+
+Result:
+
+```response
+1231	Alex	33	[]
+1231	Alex	33	['Al','Little Alex']
+```
 
 ## emptyArrayToSingle
 

From e7270069a487be62e067e1f158ad0d745280622b Mon Sep 17 00:00:00 2001
From: Johnny <9611008+johnnymatthews@users.noreply.github.com>
Date: Mon, 29 Jan 2024 14:26:20 -0400
Subject: [PATCH 5/6] Removes dupliated h2 header.

---
 docs/en/sql-reference/functions/array-functions.md | 2 --
 1 file changed, 2 deletions(-)

diff --git a/docs/en/sql-reference/functions/array-functions.md b/docs/en/sql-reference/functions/array-functions.md
index d811112a861..d3054d25106 100644
--- a/docs/en/sql-reference/functions/array-functions.md
+++ b/docs/en/sql-reference/functions/array-functions.md
@@ -534,8 +534,6 @@ Result:
 1231	Alex	33	[1999999999]
 ```
 
-## emptyArrayDate, emptyArrayDateTime
-
 ## emptyArrayDate
 
 Accepts zero arguments and returns an empty Date array.

From 3c60e829710ffb72c8571ef664ad146cfcd3f266 Mon Sep 17 00:00:00 2001
From: Robert Schulze <robert@clickhouse.com>
Date: Mon, 11 Mar 2024 07:39:08 +0000
Subject: [PATCH 6/6] Incorporate review feedback

---
 .../functions/array-functions.md              | 222 +++---------------
 1 file changed, 39 insertions(+), 183 deletions(-)

diff --git a/docs/en/sql-reference/functions/array-functions.md b/docs/en/sql-reference/functions/array-functions.md
index d3054d25106..67a4c026851 100644
--- a/docs/en/sql-reference/functions/array-functions.md
+++ b/docs/en/sql-reference/functions/array-functions.md
@@ -106,7 +106,7 @@ Alias: `OCTET_LENGTH`
 
 ## emptyArrayUInt8
 
-Accepts zero arguments and returns an empty UInt8 array.
+Returns an empty UInt8 array.
 
 **Syntax**
 
@@ -122,34 +122,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt8)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt8());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 255) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayUInt8();
 ```
 
 Result:
 
 ```response
-1234	Alex	33	[]
-1234	Alex	33	[255]
+[]
 ```
 
 ## emptyArrayUInt16
 
-Accepts zero arguments and returns an empty UInt16 array.
+Returns an empty UInt16 array.
 
 **Syntax**
 
@@ -165,34 +154,24 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt16)) ENGINE=Memory;
+SELECT emptyArrayUInt16();
 
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt16());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 65535) WHERE uid = 1231;
-SELECT * FROM users;
 ```
 
 Result:
 
 ```response
-1231	Alex    33	[]
-1231	Alex    33	[65535]
+[]
 ```
 
 ## emptyArrayUInt32
 
-Accepts zero arguments and returns an empty UInt32 array.
+Returns an empty UInt32 array.
 
 **Syntax**
 
@@ -208,34 +187,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt32)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt32());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 4294967295) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayUInt32();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	[4294967295]
+[]
 ```
 
 ## emptyArrayUInt64
 
-Accepts zero arguments and returns an empty UInt64 array.
+Returns an empty UInt64 array.
 
 **Syntax**
 
@@ -251,34 +219,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(UInt64)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayUInt64());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 18446744073709551615) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayUInt64();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	[18446744073709551615]
+[]
 ```
 
 ## emptyArrayInt8
 
-Accepts zero arguments and returns an empty Int8 array.
+Returns an empty Int8 array.
 
 **Syntax**
 
@@ -294,34 +251,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int8)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt8());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 127) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayInt8();
 ```
 
 Result:
 
 ```response
-1234	Alex	33	[]
-1234	Alex	33	[127]
+[]
 ```
 
 ## emptyArrayInt16
 
-Accepts zero arguments and returns an empty Int16 array.
+Returns an empty Int16 array.
 
 **Syntax**
 
@@ -337,34 +283,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int16)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt16());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 32767) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayInt16();
 ```
 
 Result:
 
 ```response
-1231	Alex    33	[]
-1231	Alex    33	[32767]
+[]
 ```
 
 ## emptyArrayInt32
 
-Accepts zero arguments and returns an empty Int32 array.
+Returns an empty Int32 array.
 
 **Syntax**
 
@@ -380,34 +315,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int32)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt32());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 2147483647) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayInt32();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	[2147483647]
+[]
 ```
 
 ## emptyArrayInt64
 
-Accepts zero arguments and returns an empty Int64 array.
+Returns an empty Int64 array.
 
 **Syntax**
 
@@ -423,34 +347,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int64)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayInt64());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 9223372036854775807) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayInt64();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	[9223372036854775807]
+[]
 ```
 
 ## emptyArrayFloat32 
 
-Returns an empty Float32 array. Accepts zero arguments.
+Returns an empty Float32 array.
 
 **Syntax**
 
@@ -466,34 +379,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int32)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayFloat32());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 3.4e+38) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayFloat32();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	[-2147483648]
+[]
 ```
 
 ## emptyArrayFloat64
 
-Accepts zero arguments and returns an empty Float64 array.
+Returns an empty Float64 array.
 
 **Syntax**
 
@@ -509,34 +411,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, contacts Array(Int)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayFloat64());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE contacts = arrayPushBack(contacts, 1.999999999e+9) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayFloat64();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	[1999999999]
+[]
 ```
 
 ## emptyArrayDate
 
-Accepts zero arguments and returns an empty Date array.
+Returns an empty Date array.
 
 **Syntax**
 
@@ -552,33 +443,22 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, userDates Array(Date)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayDate());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, today()) WHERE uid = 1231;
-ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, addDays(today(), 1)) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayDate();
 ```
 
 ## emptyArrayDateTime
 
-Accepts zero arguments and returns an empty DateTime array.
+Returns an empty DateTime array.
 
 **Syntax**
 
 ```sql
-emptyArrayDateTime()
+[]
 ```
 
 **Arguments**
@@ -589,35 +469,23 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, userDates Array(DateTime)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayDateTime());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, now()) WHERE uid = 1231;
-ALTER TABLE users UPDATE userDates = arrayPushBack(userDates, addDays(now(), 1)) WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayDateTime();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	['2024-01-29 18:08:01','2024-01-30 18:08:01']
+[]
 ```
 
 ## emptyArrayString
 
-Accepts zero arguments and returns an empty String array.
+Returns an empty String array.
 
 **Syntax**
 
@@ -633,30 +501,18 @@ None.
 
 An empty array.
 
-**Implementation details**
-
-None.
-
 **Examples**
 
 Query:
 
 ```sql
-CREATE TABLE users (uid Int16, name String, age Int16, aliases Array(String)) ENGINE=Memory;
-
-INSERT INTO users VALUES (1231, 'Alex', 33, emptyArrayString());
-SELECT * FROM users;
-
-ALTER TABLE users UPDATE aliases = arrayPushBack(aliases, 'Al') WHERE uid = 1231;
-ALTER TABLE users UPDATE aliases = arrayPushBack(aliases, 'Little Alex') WHERE uid = 1231;
-SELECT * FROM users;
+SELECT emptyArrayString();
 ```
 
 Result:
 
 ```response
-1231	Alex	33	[]
-1231	Alex	33	['Al','Little Alex']
+[]
 ```
 
 ## emptyArrayToSingle