Remove broken "Original article"

docs/en/sql-reference/aggregate-functions/combinators.md

@@ -250,4 +250,3 @@ FROM people
 ```
 
 
-[Original article](https://clickhouse.tech/docs/en/query_language/agg_functions/combinators/) <!--hide-->

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

@@ -59,4 +59,3 @@ SELECT groupArray(y) FROM t_null_big
 `groupArray` does not include `NULL` in the resulting array.
 
 
-[Original article](https://clickhouse.tech/docs/en/query_language/agg_functions/) <!--hide-->

docs/en/sql-reference/aggregate-functions/parametric-functions.md

@@ -500,7 +500,6 @@ Problem: Generate a report that shows only keywords that produced at least 5 uni
 Solution: Write in the GROUP BY query SearchPhrase HAVING uniqUpTo(4)(UserID) >= 5
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/agg_functions/parametric_functions/) <!--hide-->
 
 ## sumMapFiltered(keys_to_keep)(keys, values) {#summapfilteredkeys-to-keepkeys-values}
 

docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-hierarchical.md

@@ -65,4 +65,3 @@ For our example, the structure of dictionary can be the following:
 </dictionary>
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts_dict_hierarchical/) <!--hide-->

docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-layout.md

@@ -445,4 +445,3 @@ Other types are not supported yet. The function returns the attribute for the pr
 
 Data must completely fit into RAM.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts_dict_layout/) <!--hide-->

docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-lifetime.md

@@ -86,4 +86,3 @@ SOURCE(ODBC(... invalidate_query 'SELECT update_time FROM dictionary_source wher
 ...
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts_dict_lifetime/) <!--hide-->

docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-structure.md

@@ -170,4 +170,3 @@ Configuration fields:
 
 -   [Functions for working with external dictionaries](../../../sql-reference/functions/ext-dict-functions.md).
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts_dict_structure/) <!--hide-->

docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict.md

@@ -48,4 +48,3 @@ LIFETIME(...) -- Lifetime of dictionary in memory
 -   [structure](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-structure.md) — Structure of the dictionary . A key and attributes that can be retrieved by this key.
 -   [lifetime](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-lifetime.md) — Frequency of dictionary updates.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts_dict/) <!--hide-->

docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts.md

@@ -57,4 +57,3 @@ You can [configure](../../../sql-reference/dictionaries/external-dictionaries/ex
 -   [Dictionary Key and Fields](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-structure.md)
 -   [Functions for Working with External Dictionaries](../../../sql-reference/functions/ext-dict-functions.md)
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/external_dicts/) <!--hide-->

docs/en/sql-reference/dictionaries/index.md

@@ -17,4 +17,3 @@ ClickHouse supports:
 -   [Built-in dictionaries](../../sql-reference/dictionaries/internal-dicts.md#internal_dicts) with a specific [set of functions](../../sql-reference/functions/ym-dict-functions.md).
 -   [Plug-in (external) dictionaries](../../sql-reference/dictionaries/external-dictionaries/external-dicts.md#dicts-external-dicts) with a [set of functions](../../sql-reference/functions/ext-dict-functions.md).
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/) <!--hide-->

docs/en/sql-reference/dictionaries/internal-dicts.md

@@ -50,4 +50,3 @@ We recommend periodically updating the dictionaries with the geobase. During an
 
 There are also functions for working with OS identifiers and Yandex.Metrica search engines, but they shouldn’t be used.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/dicts/internal_dicts/) <!--hide-->

docs/en/sql-reference/functions/arithmetic-functions.md

@@ -82,4 +82,3 @@ An exception is thrown when dividing by zero or when dividing a minimal negative
 Returns the least common multiple of the numbers.
 An exception is thrown when dividing by zero or when dividing a minimal negative number by minus one.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/arithmetic_functions/) <!--hide-->

docs/en/sql-reference/functions/array-functions.md

@@ -1541,4 +1541,3 @@ SELECT arrayCumSumNonNegative([1, 1, -4, 1]) AS res
 ```
 Note that the `arraySumNonNegative` is a [higher-order function](../../sql-reference/functions/index.md#higher-order-functions). You can pass a lambda function to it as the first argument.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/array_functions/) <!--hide-->

docs/en/sql-reference/functions/array-join.md

@@ -32,4 +32,3 @@ SELECT arrayJoin([1, 2, 3] AS src) AS dst, 'Hello', src
 └─────┴───────────┴─────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/array_join/) <!--hide-->

docs/en/sql-reference/functions/bit-functions.md

@@ -250,4 +250,3 @@ Result:
 └───────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/bit_functions/) <!--hide-->

docs/en/sql-reference/functions/bitmap-functions.md

@@ -491,4 +491,3 @@ SELECT bitmapAndnotCardinality(bitmapBuild([1,2,3]),bitmapBuild([3,4,5])) AS res
 └─────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/bitmap_functions/) <!--hide-->

docs/en/sql-reference/functions/comparison-functions.md

@@ -32,4 +32,3 @@ Strings are compared by bytes. A shorter string is smaller than all strings that
 
 ## greaterOrEquals, \>= operator {#function-greaterorequals}
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/comparison_functions/) <!--hide-->

docs/en/sql-reference/functions/conditional-functions.md

@@ -202,4 +202,3 @@ FROM LEFT_RIGHT
 └──────┴───────┴──────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/conditional_functions/) <!--hide-->

docs/en/sql-reference/functions/date-time-functions.md

@@ -1070,4 +1070,3 @@ Result:
 └────────────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/date_time_functions/) <!--hide-->

docs/en/sql-reference/functions/encoding-functions.md

@@ -172,4 +172,3 @@ Accepts an integer. Returns a string containing the list of powers of two that t
 
 Accepts an integer. Returns an array of UInt64 numbers containing the list of powers of two that total the source number when summed. Numbers in the array are in ascending order.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/encoding_functions/) <!--hide-->

docs/en/sql-reference/functions/ext-dict-functions.md

@@ -203,4 +203,3 @@ dictGet[Type]OrDefault('dict_name', 'attr_name', id_expr, default_value_expr)
 
 ClickHouse throws an exception if it cannot parse the value of the attribute or the value doesn’t match the attribute data type.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/ext_dict_functions/) <!--hide-->

docs/en/sql-reference/functions/functions-for-nulls.md

@@ -309,4 +309,3 @@ SELECT toTypeName(toNullable(10))
 └────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/functions_for_nulls/) <!--hide-->

docs/en/sql-reference/functions/hash-functions.md

@@ -482,4 +482,3 @@ Result:
 
 -   [xxHash](http://cyan4973.github.io/xxHash/).
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/hash_functions/) <!--hide-->

docs/en/sql-reference/functions/in-functions.md

@@ -9,4 +9,3 @@ toc_title: IN Operator
 
 See the section [IN operators](../../sql-reference/operators/in.md#select-in-operators).
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/in_functions/) <!--hide-->

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

@@ -84,4 +84,3 @@ Another example is the `hostName` function, which returns the name of the server
 
 If a function in a query is performed on the requestor server, but you need to perform it on remote servers, you can wrap it in an ‘any’ aggregate function or add it to a key in `GROUP BY`.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/) <!--hide-->

docs/en/sql-reference/functions/introspection.md

@@ -369,4 +369,3 @@ Result:
 └──────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/introspection/) <!--hide-->

docs/en/sql-reference/functions/ip-address-functions.md

@@ -394,4 +394,3 @@ Result:
 └──────────────────┴────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/ip_address_functions/) <!--hide-->

docs/en/sql-reference/functions/json-functions.md

@@ -292,4 +292,3 @@ Result:
 └───────────────────────────────────────────────────────────────────────────────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/json_functions/) <!--hide-->

docs/en/sql-reference/functions/logical-functions.md

@@ -17,4 +17,3 @@ Zero as an argument is considered “false,” while any non-zero value is consi
 
 ## xor {#xor}
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/logical_functions/) <!--hide-->

docs/en/sql-reference/functions/machine-learning-functions.md

@@ -94,4 +94,3 @@ Result:
 }
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/machine-learning-functions/) <!--hide-->

docs/en/sql-reference/functions/math-functions.md

@@ -477,4 +477,3 @@ Result:
 └──────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/math_functions/) <!--hide-->

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

@@ -1971,4 +1971,3 @@ Result:
 
 -   [tcp_port](../../operations/server-configuration-parameters/settings.md#server_configuration_parameters-tcp_port)
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/other_functions/) <!--hide-->

docs/en/sql-reference/functions/random-functions.md

@@ -102,4 +102,3 @@ FROM numbers(3)
 │ aeca2A │
 └───────────────────────────────────────┘
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/random_functions/) <!--hide-->

docs/en/sql-reference/functions/rounding-functions.md

@@ -185,4 +185,3 @@ Accepts a number. If the number is less than 18, it returns 0. Otherwise, it rou
 
 Accepts a number and rounds it down to an element in the specified array. If the value is less than the lowest bound, the lowest bound is returned.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/rounding_functions/) <!--hide-->

docs/en/sql-reference/functions/splitting-merging-functions.md

@@ -150,4 +150,3 @@ Result:
 └───────────────────────────────────────────────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/splitting_merging_functions/) <!--hide-->

docs/en/sql-reference/functions/string-functions.md

@@ -648,4 +648,3 @@ Result:
 -   [List of XML and HTML character entity references](https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references)
 
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/string_functions/) <!--hide-->

docs/en/sql-reference/functions/string-replace-functions.md

@@ -92,4 +92,3 @@ Predefined characters: `\0`, `\\`, `|`, `(`, `)`, `^`, `$`, `.`, `[`, `]`, `?`,
 This implementation slightly differs from re2::RE2::QuoteMeta. It escapes zero byte as `\0` instead of `\x00` and it escapes only required characters.
 For more information, see the link: [RE2](https://github.com/google/re2/blob/master/re2/re2.cc#L473)
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/string_replace_functions/) <!--hide-->

docs/en/sql-reference/functions/string-search-functions.md

@@ -773,4 +773,3 @@ Result:
 └───────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/string_search_functions/) <!--hide-->

docs/en/sql-reference/functions/type-conversion-functions.md

@@ -1210,4 +1210,3 @@ Result:
 └───────────────────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/type_conversion_functions/) <!--hide-->

docs/en/sql-reference/functions/url-functions.md

@@ -420,4 +420,3 @@ Removes the query string and fragment identifier. The question mark and number s
 
 Removes the ‘name’ URL parameter, if present. This function works under the assumption that the parameter name is encoded in the URL exactly the same way as in the passed argument.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/url_functions/) <!--hide-->

docs/en/sql-reference/functions/uuid-functions.md

@@ -165,4 +165,3 @@ SELECT
 
 -   [dictGetUUID](../../sql-reference/functions/ext-dict-functions.md#ext_dict_functions-other)
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/uuid_function/) <!--hide-->

docs/en/sql-reference/functions/ym-dict-functions.md

@@ -150,4 +150,3 @@ Accepts a UInt32 number – the region ID from the Yandex geobase. A string with
 
 `ua` and `uk` both mean Ukrainian.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/functions/ym_dict_functions/) <!--hide-->

docs/en/sql-reference/operators/index.md

@@ -296,4 +296,3 @@ SELECT * FROM t_null WHERE y IS NOT NULL
 └───┴───┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/operators/) <!--hide-->

docs/en/sql-reference/statements/alter/index.md

@@ -47,4 +47,3 @@ For `ALTER ... ATTACH|DETACH|DROP` queries, you can use the `replication_alter_p
 
 For `ALTER TABLE ... UPDATE|DELETE` queries the synchronicity is defined by the [mutations_sync](../../../operations/settings/settings.md#mutations_sync) setting.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/alter/) <!--hide-->

docs/en/sql-reference/statements/grant.md

@@ -473,4 +473,3 @@ Doesn’t grant any privileges.
 
 The `ADMIN OPTION` privilege allows a user to grant their role to another user.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/grant/) <!--hide-->

docs/en/sql-reference/statements/insert-into.md

@@ -117,4 +117,3 @@ Performance will not decrease if:
 -   Data is added in real time.
 -   You upload data that is usually sorted by time.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/insert_into/) <!--hide-->

docs/en/sql-reference/statements/system.md

@@ -277,4 +277,3 @@ SYSTEM RESTART REPLICA [db.]replicated_merge_tree_family_table_name
 
 Provides possibility to reinitialize Zookeeper sessions state for all `ReplicatedMergeTree` tables, will compare current state with Zookeeper as source of true and add tasks to Zookeeper queue if needed
 
-[Original article](https://clickhouse.tech/docs/en/query_language/system/) <!--hide-->

docs/en/sql-reference/table-functions/generate.md

@@ -39,4 +39,3 @@ SELECT * FROM generateRandom('a Array(Int8), d Decimal32(4), c Tuple(DateTime64(
 └──────────┴──────────────┴────────────────────────────────────────────────────────────────────┘
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/generate/) <!--hide-->

docs/en/sql-reference/table-functions/hdfs.md

@@ -99,4 +99,3 @@ FROM hdfs('hdfs://hdfs1:9000/big_dir/file{0..9}{0..9}{0..9}', 'CSV', 'name Strin
 
 -   [Virtual columns](../../engines/table-engines/index.md#table_engines-virtual_columns)
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/hdfs/) <!--hide-->

docs/en/sql-reference/table-functions/input.md

@@ -42,4 +42,3 @@ $ cat data.csv | clickhouse-client --query="INSERT INTO test FORMAT CSV"
 $ cat data.csv | clickhouse-client --query="INSERT INTO test SELECT * FROM input('test_structure') FORMAT CSV"
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/input/) <!--hide-->

docs/en/sql-reference/table-functions/jdbc.md

@@ -24,4 +24,3 @@ SELECT * FROM jdbc('mysql://localhost:3306/?user=root&password=root', 'schema',
 SELECT * FROM jdbc('datasource://mysql-local', 'schema', 'table')
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/jdbc/) <!--hide-->

docs/en/sql-reference/table-functions/merge.md

@@ -9,4 +9,3 @@ toc_title: merge
 
 The table structure is taken from the first table encountered that matches the regular expression.
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/merge/) <!--hide-->

docs/en/sql-reference/table-functions/numbers.md

@@ -25,4 +25,3 @@ Examples:
 select toDate('2010-01-01') + number as d FROM numbers(365);
 ```
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/numbers/) <!--hide-->

docs/en/sql-reference/table-functions/s3.md

@@ -166,4 +166,3 @@ Security consideration: if malicious user can specify arbitrary S3 URLs, `s3_max
 
 -   [Virtual columns](../../engines/table-engines/index.md#table_engines-virtual_columns)
 
-[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/s3/) <!--hide-->