mirror of
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Merge pull request #55298 from rschu1ze/use_mysql_types_in_show_columns
Make `use_mysql_types_in_show_columns` independent from the connection
This commit is contained in:
Robert Schulze
GitHub
commit
312fe8e31d
@ -3279,6 +3279,17 @@ Possible values:
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Default value: `0`.
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## use_mysql_types_in_show_columns {#use_mysql_types_in_show_columns}
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Show the names of MySQL data types corresponding to ClickHouse data types in [SHOW COLUMNS](../../sql-reference/statements/show.md#show_columns) and SELECTs on [system.columns](../system-tables/columns.md).
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Possible values:
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- 0 - Show names of native ClickHouse data types.
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- 1 - Show names of MySQL data types corresponding to ClickHouse data types.
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Default value: `0`.
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## execute_merges_on_single_replica_time_threshold {#execute-merges-on-single-replica-time-threshold}
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Enables special logic to perform merges on replicas.
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@ -14,7 +14,7 @@ The `system.columns` table contains the following columns (the column type is sh
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- `database` ([String](../../sql-reference/data-types/string.md)) — Database name.
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- `table` ([String](../../sql-reference/data-types/string.md)) — Table name.
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- `name` ([String](../../sql-reference/data-types/string.md)) — Column name.
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- `type` ([String](../../sql-reference/data-types/string.md)) — Column type.
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- `type` ([String](../../sql-reference/data-types/string.md)) — Column type. If setting `[use_mysql_types_in_show_columns](../../operations/settings/settings.md#use_mysql_types_in_show_columns) = 1` (default: 0), then the equivalent type name in MySQL is shown.
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- `position` ([UInt64](../../sql-reference/data-types/int-uint.md)) — Ordinal position of a column in a table starting with 1.
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- `default_kind` ([String](../../sql-reference/data-types/string.md)) — Expression type (`DEFAULT`, `MATERIALIZED`, `ALIAS`) for the default value, or an empty string if it is not defined.
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- `default_expression` ([String](../../sql-reference/data-types/string.md)) — Expression for the default value, or an empty string if it is not defined.
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@ -189,7 +189,7 @@ Result:
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- [Create Tables](https://clickhouse.com/docs/en/getting-started/tutorial/#create-tables)
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- [SHOW CREATE TABLE](https://clickhouse.com/docs/en/sql-reference/statements/show/#show-create-table)
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## SHOW COLUMNS
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## SHOW COLUMNS {#show_columns}
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Displays a list of columns
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@ -206,15 +206,15 @@ The optional keyword `EXTENDED` currently has no effect, it only exists for MySQ
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The optional keyword `FULL` causes the output to include the collation, comment and privilege columns.
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The statement produces a result table with the following structure:
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- field - The name of the column (String)
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- type - The column data type (String)
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- null - `YES` if the column data type is Nullable, `NO` otherwise (String)
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- key - `PRI` if the column is part of the primary key, `SOR` if the column is part of the sorting key, empty otherwise (String)
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- default - Default expression of the column if it is of type `ALIAS`, `DEFAULT`, or `MATERIALIZED`, otherwise `NULL`. (Nullable(String))
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- extra - Additional information, currently unused (String)
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- collation - (only if `FULL` keyword was specified) Collation of the column, always `NULL` because ClickHouse has no per-column collations (Nullable(String))
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- comment - (only if `FULL` keyword was specified) Comment on the column (String)
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- privilege - (only if `FULL` keyword was specified) The privilege you have on this column, currently not available (String)
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- `field` - The name of the column (String)
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- `type` - The column data type. If setting `[use_mysql_types_in_show_columns](../../operations/settings/settings.md#use_mysql_types_in_show_columns) = 1` (default: 0), then the equivalent type name in MySQL is shown. (String)
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- `null` - `YES` if the column data type is Nullable, `NO` otherwise (String)
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- `key` - `PRI` if the column is part of the primary key, `SOR` if the column is part of the sorting key, empty otherwise (String)
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- `default` - Default expression of the column if it is of type `ALIAS`, `DEFAULT`, or `MATERIALIZED`, otherwise `NULL`. (Nullable(String))
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- `extra` - Additional information, currently unused (String)
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- `collation` - (only if `FULL` keyword was specified) Collation of the column, always `NULL` because ClickHouse has no per-column collations (Nullable(String))
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- `comment` - (only if `FULL` keyword was specified) Comment on the column (String)
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- `privilege` - (only if `FULL` keyword was specified) The privilege you have on this column, currently not available (String)
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**Examples**
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@ -286,21 +286,21 @@ equivalent. If no database is specified, the query assumes the current database
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The optional keyword `EXTENDED` currently has no effect, it only exists for MySQL compatibility.
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The statement produces a result table with the following structure:
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- table - The name of the table. (String)
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- non_unique - Always `1` as ClickHouse does not support uniqueness constraints. (UInt8)
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- key_name - The name of the index, `PRIMARY` if the index is a primary key index. (String)
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- seq_in_index - For a primary key index, the position of the column starting from `1`. For a data skipping index: always `1`. (UInt8)
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- column_name - For a primary key index, the name of the column. For a data skipping index: `''` (empty string), see field "expression". (String)
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- collation - The sorting of the column in the index: `A` if ascending, `D` if descending, `NULL` if unsorted. (Nullable(String))
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- cardinality - An estimation of the index cardinality (number of unique values in the index). Currently always 0. (UInt64)
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- sub_part - Always `NULL` because ClickHouse does not support index prefixes like MySQL. (Nullable(String))
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- packed - Always `NULL` because ClickHouse does not support packed indexes (like MySQL). (Nullable(String))
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- null - Currently unused
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- index_type - The index type, e.g. `PRIMARY`, `MINMAX`, `BLOOM_FILTER` etc. (String)
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- comment - Additional information about the index, currently always `''` (empty string). (String)
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- index_comment - `''` (empty string) because indexes in ClickHouse cannot have a `COMMENT` field (like in MySQL). (String)
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- visible - If the index is visible to the optimizer, always `YES`. (String)
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- expression - For a data skipping index, the index expression. For a primary key index: `''` (empty string). (String)
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- `table` - The name of the table. (String)
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- `non_unique` - Always `1` as ClickHouse does not support uniqueness constraints. (UInt8)
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- `key_name` - The name of the index, `PRIMARY` if the index is a primary key index. (String)
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- `seq_in_index` - For a primary key index, the position of the column starting from `1`. For a data skipping index: always `1`. (UInt8)
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- `column_name` - For a primary key index, the name of the column. For a data skipping index: `''` (empty string), see field "expression". (String)
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- `collation` - The sorting of the column in the index: `A` if ascending, `D` if descending, `NULL` if unsorted. (Nullable(String))
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- `cardinality` - An estimation of the index cardinality (number of unique values in the index). Currently always 0. (UInt64)
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- `sub_part` - Always `NULL` because ClickHouse does not support index prefixes like MySQL. (Nullable(String))
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- `packed` - Always `NULL` because ClickHouse does not support packed indexes (like MySQL). (Nullable(String))
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- `null` - Currently unused
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- `index_type` - The index type, e.g. `PRIMARY`, `MINMAX`, `BLOOM_FILTER` etc. (String)
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- `comment` - Additional information about the index, currently always `''` (empty string). (String)
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- `index_comment` - `''` (empty string) because indexes in ClickHouse cannot have a `COMMENT` field (like in MySQL). (String)
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- `visible` - If the index is visible to the optimizer, always `YES`. (String)
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- `expression` - For a data skipping index, the index expression. For a primary key index: `''` (empty string). (String)
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**Examples**
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@ -205,7 +205,7 @@ class IColumn;
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M(Bool, allow_experimental_inverted_index, false, "If it is set to true, allow to use experimental inverted index.", 0) \
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\
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M(UInt64, mysql_max_rows_to_insert, 65536, "The maximum number of rows in MySQL batch insertion of the MySQL storage engine", 0) \
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M(Bool, use_mysql_types_in_show_columns, false, "Use MySQL converted types when connected via MySQL compatibility for show columns query", 0) \
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M(Bool, use_mysql_types_in_show_columns, false, "Show MySQL types in SHOW COLUMNS and system.columns", 0) \
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\
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M(UInt64, optimize_min_equality_disjunction_chain_length, 3, "The minimum length of the expression `expr = x1 OR ... expr = xN` for optimization ", 0) \
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\
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@ -132,18 +132,6 @@ protected:
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bool check_access_for_columns = check_access_for_tables && !access->isGranted(AccessType::SHOW_COLUMNS, database_name, table_name);
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auto get_type_name = [this](const IDataType& type) -> std::string
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{
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// Check if the use_mysql_types_in_show_columns setting is enabled and client is connected via MySQL protocol
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if (use_mysql_types && client_info_interface == DB::ClientInfo::Interface::MYSQL)
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{
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return type.getSQLCompatibleName();
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}
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else
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{
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return type.getName();
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}
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};
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size_t position = 0;
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for (const auto & column : columns)
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{
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@ -161,7 +149,7 @@ protected:
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if (columns_mask[src_index++])
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res_columns[res_index++]->insert(column.name);
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if (columns_mask[src_index++])
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res_columns[res_index++]->insert(get_type_name(*column.type));
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res_columns[res_index++]->insert(use_mysql_types ? (column.type->getSQLCompatibleName()) : (column.type->getName()));
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if (columns_mask[src_index++])
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res_columns[res_index++]->insert(position);
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@ -1,366 +1,148 @@
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Drop tables if they exist
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Create tab table
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Create pseudo-random database name
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Create tab duplicate table
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Run MySQL test
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field type null key default extra
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aggregate_function AggregateFunction(sum, Int32) NO NULL
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array_value Array(Int32) NO NULL
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boolean_value UInt8 NO NULL
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date32_value Date32 NO NULL
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date_value Date NO NULL
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datetime64_value DateTime64(3) NO NULL
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datetime_value DateTime NO NULL
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decimal_value Decimal(10, 2) NO NULL
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enum_value Enum8('apple' = 1, 'banana' = 2, 'orange' = 3) NO NULL
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fixed_string_value FixedString(10) NO NULL
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float32 Float32 NO NULL
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float64 Float64 NO NULL
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int128 Int128 NO NULL
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int16 Int16 NO NULL
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int256 Int256 NO NULL
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int32 Int32 NO NULL
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int64 Int64 NO NULL
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int8 Int8 NO NULL
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ipv4_value IPv4 NO NULL
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ipv6_value IPv6 NO NULL
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json_value Object('json') NO NULL
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low_cardinality LowCardinality(String) NO NULL
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low_cardinality_date LowCardinality(DateTime) NO NULL
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map_value Map(String, Int32) NO NULL
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nested.nested_int Array(Int32) NO NULL
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nested.nested_string Array(String) NO NULL
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nint32 Nullable(Int32) YES NULL
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nullable_value Nullable(Int32) YES NULL
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string_value String NO NULL
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tuple_value Tuple(Int32, String) NO NULL
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uint128 UInt128 NO NULL
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uint16 UInt16 NO NULL
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uint256 UInt256 NO NULL
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uint32 UInt32 NO NULL
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uint64 UInt64 NO PRI SOR NULL
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uint8 UInt8 NO NULL
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uuid_value UUID NO NULL
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field type null key default extra
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aggregate_function TEXT NO NULL
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array_value TEXT NO NULL
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boolean_value TINYINT UNSIGNED NO NULL
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date32_value DATE NO NULL
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date_value DATE NO NULL
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datetime64_value DATETIME NO NULL
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datetime_value DATETIME NO NULL
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decimal_value DECIMAL(10, 2) NO NULL
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enum_value ENUM('apple', 'banana', 'orange') NO NULL
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fixed_string_value TEXT NO NULL
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float32 FLOAT NO NULL
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float64 DOUBLE NO NULL
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int128 TEXT NO NULL
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int16 SMALLINT NO NULL
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int256 TEXT NO NULL
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int32 INTEGER NO NULL
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int64 BIGINT NO NULL
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int8 TINYINT NO NULL
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ipv4_value TEXT NO NULL
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ipv6_value TEXT NO NULL
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json_value JSON NO NULL
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low_cardinality BLOB NO NULL
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low_cardinality_date DATETIME NO NULL
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map_value JSON NO NULL
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nested.nested_int TEXT NO NULL
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nested.nested_string TEXT NO NULL
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nint32 INTEGER NO NULL
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nullable_value INTEGER NO NULL
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string_value BLOB NO NULL
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tuple_value JSON NO NULL
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uint128 TEXT NO NULL
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uint16 SMALLINT UNSIGNED NO NULL
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uint256 TEXT NO NULL
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uint32 INTEGER UNSIGNED NO NULL
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uint64 BIGINT UNSIGNED NO PRI SOR NULL
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uint8 TINYINT UNSIGNED NO NULL
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uuid_value CHAR NO NULL
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field type null key default extra
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aggregate_function TEXT NO NULL
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array_value TEXT NO NULL
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boolean_value TINYINT UNSIGNED NO NULL
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date32_value DATE NO NULL
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date_value DATE NO NULL
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datetime64_value DATETIME NO NULL
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datetime_value DATETIME NO NULL
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decimal_value DECIMAL(10, 2) NO NULL
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enum_value ENUM('apple', 'banana', 'orange') NO NULL
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fixed_string_value TEXT NO NULL
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float32 FLOAT NO NULL
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float64 DOUBLE NO NULL
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int128 TEXT NO NULL
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int16 SMALLINT NO NULL
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int256 TEXT NO NULL
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int32 INTEGER NO NULL
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int64 BIGINT NO NULL
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int8 TINYINT NO NULL
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ipv4_value TEXT NO NULL
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ipv6_value TEXT NO NULL
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json_value JSON NO NULL
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low_cardinality BLOB NO NULL
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low_cardinality_date DATETIME NO NULL
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map_value JSON NO NULL
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nested.nested_int TEXT NO NULL
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nested.nested_string TEXT NO NULL
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nint32 INTEGER NO NULL
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nullable_value INTEGER NO NULL
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string_value BLOB NO NULL
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tuple_value JSON NO NULL
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uint128 TEXT NO NULL
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uint16 SMALLINT UNSIGNED NO NULL
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uint256 TEXT NO NULL
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uint32 INTEGER UNSIGNED NO NULL
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uint64 BIGINT UNSIGNED NO PRI SOR NULL
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uint8 TINYINT UNSIGNED NO NULL
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uuid_value CHAR NO NULL
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field type null key default extra collation comment privileges
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aggregate_function TEXT NO NULL NULL
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array_value TEXT NO NULL NULL
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boolean_value TINYINT UNSIGNED NO NULL NULL
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date32_value DATE NO NULL NULL
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date_value DATE NO NULL NULL
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datetime64_value DATETIME NO NULL NULL
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datetime_value DATETIME NO NULL NULL
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decimal_value DECIMAL(10, 2) NO NULL NULL
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enum_value ENUM('apple', 'banana', 'orange') NO NULL NULL
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fixed_string_value TEXT NO NULL NULL
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float32 FLOAT NO NULL NULL
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float64 DOUBLE NO NULL NULL
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int128 TEXT NO NULL NULL
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int16 SMALLINT NO NULL NULL
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int256 TEXT NO NULL NULL
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int32 INTEGER NO NULL NULL
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int64 BIGINT NO NULL NULL
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int8 TINYINT NO NULL NULL
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ipv4_value TEXT NO NULL NULL
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ipv6_value TEXT NO NULL NULL
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json_value JSON NO NULL NULL
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low_cardinality BLOB NO NULL NULL
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low_cardinality_date DATETIME NO NULL NULL
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map_value JSON NO NULL NULL
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nested.nested_int TEXT NO NULL NULL
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nested.nested_string TEXT NO NULL NULL
|
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nint32 INTEGER NO NULL NULL
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nullable_value INTEGER NO NULL NULL
|
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string_value BLOB NO NULL NULL
|
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tuple_value JSON NO NULL NULL
|
||||
uint128 TEXT NO NULL NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL NULL
|
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uint256 TEXT NO NULL NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL NULL
|
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uint64 BIGINT UNSIGNED NO PRI SOR NULL NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL NULL
|
||||
uuid_value CHAR NO NULL NULL
|
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field type null key default extra
|
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int128 TEXT NO NULL
|
||||
int16 SMALLINT NO NULL
|
||||
int256 TEXT NO NULL
|
||||
int32 INTEGER NO NULL
|
||||
int64 BIGINT NO NULL
|
||||
int8 TINYINT NO NULL
|
||||
nested.nested_int TEXT NO NULL
|
||||
nint32 INTEGER NO NULL
|
||||
uint128 TEXT NO NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL
|
||||
uint256 TEXT NO NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL
|
||||
field type null key default extra
|
||||
aggregate_function TEXT NO NULL
|
||||
array_value TEXT NO NULL
|
||||
boolean_value TINYINT UNSIGNED NO NULL
|
||||
date32_value DATE NO NULL
|
||||
date_value DATE NO NULL
|
||||
datetime64_value DATETIME NO NULL
|
||||
datetime_value DATETIME NO NULL
|
||||
decimal_value DECIMAL(10, 2) NO NULL
|
||||
enum_value ENUM('apple', 'banana', 'orange') NO NULL
|
||||
fixed_string_value TEXT NO NULL
|
||||
float32 FLOAT NO NULL
|
||||
float64 DOUBLE NO NULL
|
||||
ipv4_value TEXT NO NULL
|
||||
ipv6_value TEXT NO NULL
|
||||
json_value JSON NO NULL
|
||||
low_cardinality BLOB NO NULL
|
||||
low_cardinality_date DATETIME NO NULL
|
||||
map_value JSON NO NULL
|
||||
nested.nested_string TEXT NO NULL
|
||||
nullable_value INTEGER NO NULL
|
||||
string_value BLOB NO NULL
|
||||
tuple_value JSON NO NULL
|
||||
uuid_value CHAR NO NULL
|
||||
field type null key default extra
|
||||
int128 TEXT NO NULL
|
||||
int16 SMALLINT NO NULL
|
||||
int256 TEXT NO NULL
|
||||
int32 INTEGER NO NULL
|
||||
int64 BIGINT NO NULL
|
||||
int8 TINYINT NO NULL
|
||||
nested.nested_int TEXT NO NULL
|
||||
nint32 INTEGER NO NULL
|
||||
uint128 TEXT NO NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL
|
||||
uint256 TEXT NO NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL
|
||||
field type null key default extra
|
||||
aggregate_function TEXT NO NULL
|
||||
array_value TEXT NO NULL
|
||||
boolean_value TINYINT UNSIGNED NO NULL
|
||||
date32_value DATE NO NULL
|
||||
date_value DATE NO NULL
|
||||
datetime64_value DATETIME NO NULL
|
||||
datetime_value DATETIME NO NULL
|
||||
decimal_value DECIMAL(10, 2) NO NULL
|
||||
enum_value ENUM('apple', 'banana', 'orange') NO NULL
|
||||
fixed_string_value TEXT NO NULL
|
||||
float32 FLOAT NO NULL
|
||||
float64 DOUBLE NO NULL
|
||||
ipv4_value TEXT NO NULL
|
||||
ipv6_value TEXT NO NULL
|
||||
json_value JSON NO NULL
|
||||
low_cardinality BLOB NO NULL
|
||||
low_cardinality_date DATETIME NO NULL
|
||||
map_value JSON NO NULL
|
||||
nested.nested_string TEXT NO NULL
|
||||
nullable_value INTEGER NO NULL
|
||||
string_value BLOB NO NULL
|
||||
tuple_value JSON NO NULL
|
||||
uuid_value CHAR NO NULL
|
||||
field type null key default extra
|
||||
int128 TEXT NO NULL
|
||||
int16 SMALLINT NO NULL
|
||||
int256 TEXT NO NULL
|
||||
int32 INTEGER NO NULL
|
||||
int64 BIGINT NO NULL
|
||||
int8 TINYINT NO NULL
|
||||
nested.nested_int TEXT NO NULL
|
||||
nint32 INTEGER NO NULL
|
||||
uint128 TEXT NO NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL
|
||||
uint256 TEXT NO NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL
|
||||
field type null key default extra
|
||||
aggregate_function TEXT NO NULL
|
||||
field type null key default extra
|
||||
aggregate_function TEXT NO NULL
|
||||
array_value TEXT NO NULL
|
||||
boolean_value TINYINT UNSIGNED NO NULL
|
||||
date32_value DATE NO NULL
|
||||
date_value DATE NO NULL
|
||||
datetime64_value DATETIME NO NULL
|
||||
datetime_value DATETIME NO NULL
|
||||
decimal_value DECIMAL(10, 2) NO NULL
|
||||
enum_value ENUM('apple', 'banana', 'orange') NO NULL
|
||||
fixed_string_value TEXT NO NULL
|
||||
float32 FLOAT NO NULL
|
||||
float64 DOUBLE NO NULL
|
||||
int128 TEXT NO NULL
|
||||
int16 SMALLINT NO NULL
|
||||
int256 TEXT NO NULL
|
||||
int32 INTEGER NO NULL
|
||||
int64 BIGINT NO NULL
|
||||
int8 TINYINT NO NULL
|
||||
ipv4_value TEXT NO NULL
|
||||
ipv6_value TEXT NO NULL
|
||||
json_value JSON NO NULL
|
||||
low_cardinality BLOB NO NULL
|
||||
low_cardinality_date DATETIME NO NULL
|
||||
map_value JSON NO NULL
|
||||
nested.nested_int TEXT NO NULL
|
||||
nested.nested_string TEXT NO NULL
|
||||
nint32 INTEGER NO NULL
|
||||
nullable_value INTEGER NO NULL
|
||||
string_value BLOB NO NULL
|
||||
tuple_value JSON NO NULL
|
||||
uint128 TEXT NO NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL
|
||||
uint256 TEXT NO NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL
|
||||
uuid_value CHAR NO NULL
|
||||
field type null key default extra
|
||||
aggregate_function TEXT NO NULL
|
||||
array_value TEXT NO NULL
|
||||
boolean_value TINYINT UNSIGNED NO NULL
|
||||
date32_value DATE NO NULL
|
||||
date_value DATE NO NULL
|
||||
datetime64_value DATETIME NO NULL
|
||||
datetime_value DATETIME NO NULL
|
||||
decimal_value DECIMAL(10, 2) NO NULL
|
||||
enum_value ENUM('apple', 'banana', 'orange') NO NULL
|
||||
fixed_string_value TEXT NO NULL
|
||||
float32 FLOAT NO NULL
|
||||
float64 DOUBLE NO NULL
|
||||
int128 TEXT NO NULL
|
||||
int16 SMALLINT NO NULL
|
||||
int256 TEXT NO NULL
|
||||
int32 INTEGER NO NULL
|
||||
int64 BIGINT NO NULL
|
||||
int8 TINYINT NO NULL
|
||||
ipv4_value TEXT NO NULL
|
||||
ipv6_value TEXT NO NULL
|
||||
json_value JSON NO NULL
|
||||
low_cardinality BLOB NO NULL
|
||||
low_cardinality_date DATETIME NO NULL
|
||||
map_value JSON NO NULL
|
||||
nested.nested_int TEXT NO NULL
|
||||
nested.nested_string TEXT NO NULL
|
||||
nint32 INTEGER NO NULL
|
||||
nullable_value INTEGER NO NULL
|
||||
string_value BLOB NO NULL
|
||||
tuple_value JSON NO NULL
|
||||
uint128 TEXT NO NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL
|
||||
uint256 TEXT NO NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL
|
||||
uuid_value CHAR NO NULL
|
||||
field type null key default extra
|
||||
aggregate_function TEXT NO NULL
|
||||
array_value TEXT NO NULL
|
||||
boolean_value TINYINT UNSIGNED NO NULL
|
||||
date32_value DATE NO NULL
|
||||
date_value DATE NO NULL
|
||||
datetime64_value DATETIME NO NULL
|
||||
datetime_value DATETIME NO NULL
|
||||
decimal_value DECIMAL(10, 2) NO NULL
|
||||
enum_value ENUM('apple', 'banana', 'orange') NO NULL
|
||||
fixed_string_value TEXT NO NULL
|
||||
float32 FLOAT NO NULL
|
||||
float64 DOUBLE NO NULL
|
||||
int128 TEXT NO NULL
|
||||
int16 SMALLINT NO NULL
|
||||
int256 TEXT NO NULL
|
||||
int32 INTEGER NO NULL
|
||||
int64 BIGINT NO NULL
|
||||
int8 TINYINT NO NULL
|
||||
ipv4_value TEXT NO NULL
|
||||
ipv6_value TEXT NO NULL
|
||||
json_value JSON NO NULL
|
||||
low_cardinality BLOB NO NULL
|
||||
low_cardinality_date DATETIME NO NULL
|
||||
map_value JSON NO NULL
|
||||
nested.nested_int TEXT NO NULL
|
||||
nested.nested_string TEXT NO NULL
|
||||
nint32 INTEGER NO NULL
|
||||
nullable_value INTEGER NO NULL
|
||||
string_value BLOB NO NULL
|
||||
tuple_value JSON NO NULL
|
||||
uint128 TEXT NO NULL
|
||||
uint16 SMALLINT UNSIGNED NO NULL
|
||||
uint256 TEXT NO NULL
|
||||
uint32 INTEGER UNSIGNED NO NULL
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR NULL
|
||||
uint8 TINYINT UNSIGNED NO NULL
|
||||
uuid_value CHAR NO NULL
|
||||
aggregate_function AggregateFunction(sum, Int32) NO \N
|
||||
array_value Array(Int32) NO \N
|
||||
boolean_value UInt8 NO \N
|
||||
date32_value Date32 NO \N
|
||||
date_value Date NO \N
|
||||
datetime64_value DateTime64(3) NO \N
|
||||
datetime_value DateTime NO \N
|
||||
decimal_value Decimal(10, 2) NO \N
|
||||
enum_value Enum8(\'apple\' = 1, \'banana\' = 2, \'orange\' = 3) NO \N
|
||||
fixed_string_value FixedString(10) NO \N
|
||||
float32 Float32 NO \N
|
||||
float64 Float64 NO \N
|
||||
int128 Int128 NO \N
|
||||
int16 Int16 NO \N
|
||||
int256 Int256 NO \N
|
||||
int32 Int32 NO \N
|
||||
int64 Int64 NO \N
|
||||
int8 Int8 NO \N
|
||||
ipv4_value IPv4 NO \N
|
||||
ipv6_value IPv6 NO \N
|
||||
json_value Object(\'json\') NO \N
|
||||
low_cardinality LowCardinality(String) NO \N
|
||||
low_cardinality_date LowCardinality(DateTime) NO \N
|
||||
map_value Map(String, Int32) NO \N
|
||||
nested.nested_int Array(Int32) NO \N
|
||||
nested.nested_string Array(String) NO \N
|
||||
nint32 Nullable(Int32) YES \N
|
||||
nullable_value Nullable(Int32) YES \N
|
||||
string_value String NO \N
|
||||
tuple_value Tuple(Int32, String) NO \N
|
||||
uint128 UInt128 NO \N
|
||||
uint16 UInt16 NO \N
|
||||
uint256 UInt256 NO \N
|
||||
uint32 UInt32 NO \N
|
||||
uint64 UInt64 NO PRI SOR \N
|
||||
uint8 UInt8 NO \N
|
||||
uuid_value UUID NO \N
|
||||
aggregate_function TEXT NO \N
|
||||
array_value TEXT NO \N
|
||||
boolean_value TINYINT UNSIGNED NO \N
|
||||
date32_value DATE NO \N
|
||||
date_value DATE NO \N
|
||||
datetime64_value DATETIME NO \N
|
||||
datetime_value DATETIME NO \N
|
||||
decimal_value DECIMAL(10, 2) NO \N
|
||||
enum_value ENUM(\'apple\', \'banana\', \'orange\') NO \N
|
||||
fixed_string_value TEXT NO \N
|
||||
float32 FLOAT NO \N
|
||||
float64 DOUBLE NO \N
|
||||
int128 TEXT NO \N
|
||||
int16 SMALLINT NO \N
|
||||
int256 TEXT NO \N
|
||||
int32 INTEGER NO \N
|
||||
int64 BIGINT NO \N
|
||||
int8 TINYINT NO \N
|
||||
ipv4_value TEXT NO \N
|
||||
ipv6_value TEXT NO \N
|
||||
json_value JSON NO \N
|
||||
low_cardinality BLOB NO \N
|
||||
low_cardinality_date DATETIME NO \N
|
||||
map_value JSON NO \N
|
||||
nested.nested_int TEXT NO \N
|
||||
nested.nested_string TEXT NO \N
|
||||
nint32 INTEGER NO \N
|
||||
nullable_value INTEGER NO \N
|
||||
string_value BLOB NO \N
|
||||
tuple_value JSON NO \N
|
||||
uint128 TEXT NO \N
|
||||
uint16 SMALLINT UNSIGNED NO \N
|
||||
uint256 TEXT NO \N
|
||||
uint32 INTEGER UNSIGNED NO \N
|
||||
uint64 BIGINT UNSIGNED NO PRI SOR \N
|
||||
uint8 TINYINT UNSIGNED NO \N
|
||||
uuid_value CHAR NO \N
|
||||
uint8 UInt8
|
||||
uint16 UInt16
|
||||
uint32 UInt32
|
||||
uint64 UInt64
|
||||
uint128 UInt128
|
||||
uint256 UInt256
|
||||
int8 Int8
|
||||
int16 Int16
|
||||
int32 Int32
|
||||
int64 Int64
|
||||
int128 Int128
|
||||
int256 Int256
|
||||
nint32 Nullable(Int32)
|
||||
float32 Float32
|
||||
float64 Float64
|
||||
decimal_value Decimal(10, 2)
|
||||
boolean_value UInt8
|
||||
string_value String
|
||||
fixed_string_value FixedString(10)
|
||||
date_value Date
|
||||
date32_value Date32
|
||||
datetime_value DateTime
|
||||
datetime64_value DateTime64(3)
|
||||
json_value Object(\'json\')
|
||||
uuid_value UUID
|
||||
enum_value Enum8(\'apple\' = 1, \'banana\' = 2, \'orange\' = 3)
|
||||
low_cardinality LowCardinality(String)
|
||||
low_cardinality_date LowCardinality(DateTime)
|
||||
aggregate_function AggregateFunction(sum, Int32)
|
||||
array_value Array(Int32)
|
||||
map_value Map(String, Int32)
|
||||
tuple_value Tuple(Int32, String)
|
||||
nullable_value Nullable(Int32)
|
||||
ipv4_value IPv4
|
||||
ipv6_value IPv6
|
||||
nested.nested_int Array(Int32)
|
||||
nested.nested_string Array(String)
|
||||
uint8 TINYINT UNSIGNED
|
||||
uint16 SMALLINT UNSIGNED
|
||||
uint32 INTEGER UNSIGNED
|
||||
uint64 BIGINT UNSIGNED
|
||||
uint128 TEXT
|
||||
uint256 TEXT
|
||||
int8 TINYINT
|
||||
int16 SMALLINT
|
||||
int32 INTEGER
|
||||
int64 BIGINT
|
||||
int128 TEXT
|
||||
int256 TEXT
|
||||
nint32 INTEGER
|
||||
float32 FLOAT
|
||||
float64 DOUBLE
|
||||
decimal_value DECIMAL(10, 2)
|
||||
boolean_value TINYINT UNSIGNED
|
||||
string_value BLOB
|
||||
fixed_string_value TEXT
|
||||
date_value DATE
|
||||
date32_value DATE
|
||||
datetime_value DATETIME
|
||||
datetime64_value DATETIME
|
||||
json_value JSON
|
||||
uuid_value CHAR
|
||||
enum_value ENUM(\'apple\', \'banana\', \'orange\')
|
||||
low_cardinality BLOB
|
||||
low_cardinality_date DATETIME
|
||||
aggregate_function TEXT
|
||||
array_value TEXT
|
||||
map_value JSON
|
||||
tuple_value JSON
|
||||
nullable_value INTEGER
|
||||
ipv4_value TEXT
|
||||
ipv6_value TEXT
|
||||
nested.nested_int TEXT
|
||||
nested.nested_string TEXT
|
||||
|
||||
@ -1,153 +0,0 @@
|
||||
#!/usr/bin/env bash
|
||||
# Tags: no-fasttest, no-parallel
|
||||
|
||||
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
||||
# shellcheck source=../shell_config.sh
|
||||
. "$CURDIR"/../shell_config.sh
|
||||
|
||||
# This script tests the MySQL compatibility of the SHOW COLUMNS command in ClickHouse
|
||||
USER="default"
|
||||
PASSWORD=""
|
||||
HOST="127.0.0.1"
|
||||
PORT=9004
|
||||
|
||||
# First run the clickhouse test to create the ClickHouse Tables
|
||||
|
||||
echo "Drop tables if they exist"
|
||||
${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS tab"
|
||||
${CLICKHOUSE_CLIENT} --query "DROP DATABASE IF EXISTS database_123456789abcdef"
|
||||
${CLICKHOUSE_CLIENT} --query "DROP TABLE IF EXISTS database_123456789abcdef.tab"
|
||||
|
||||
echo "Create tab table "
|
||||
${CLICKHOUSE_CLIENT} -n -q "
|
||||
SET allow_suspicious_low_cardinality_types=1;
|
||||
SET allow_experimental_object_type=1;
|
||||
CREATE TABLE tab
|
||||
(
|
||||
uint8 UInt8,
|
||||
uint16 UInt16,
|
||||
uint32 UInt32,
|
||||
uint64 UInt64,
|
||||
uint128 UInt128,
|
||||
uint256 UInt256,
|
||||
int8 Int8,
|
||||
int16 Int16,
|
||||
int32 Int32,
|
||||
int64 Int64,
|
||||
int128 Int128,
|
||||
int256 Int256,
|
||||
nint32 Nullable(Int32),
|
||||
float32 Float32,
|
||||
float64 Float64,
|
||||
decimal_value Decimal(10, 2),
|
||||
boolean_value UInt8,
|
||||
string_value String,
|
||||
fixed_string_value FixedString(10),
|
||||
date_value Date,
|
||||
date32_value Date32,
|
||||
datetime_value DateTime,
|
||||
datetime64_value DateTime64(3),
|
||||
json_value JSON,
|
||||
uuid_value UUID,
|
||||
enum_value Enum8('apple' = 1, 'banana' = 2, 'orange' = 3),
|
||||
low_cardinality LowCardinality(String),
|
||||
low_cardinality_date LowCardinality(DateTime),
|
||||
aggregate_function AggregateFunction(sum, Int32),
|
||||
array_value Array(Int32),
|
||||
map_value Map(String, Int32),
|
||||
tuple_value Tuple(Int32, String),
|
||||
nullable_value Nullable(Int32),
|
||||
ipv4_value IPv4,
|
||||
ipv6_value IPv6,
|
||||
nested Nested
|
||||
(
|
||||
nested_int Int32,
|
||||
nested_string String
|
||||
)
|
||||
) ENGINE = MergeTree
|
||||
ORDER BY uint64;
|
||||
"
|
||||
|
||||
|
||||
echo "Create pseudo-random database name"
|
||||
${CLICKHOUSE_CLIENT} --query "CREATE DATABASE database_123456789abcdef;"
|
||||
|
||||
echo "Create tab duplicate table"
|
||||
${CLICKHOUSE_CLIENT} -n -q "
|
||||
SET allow_suspicious_low_cardinality_types=1;
|
||||
SET allow_experimental_object_type =1;
|
||||
CREATE TABLE database_123456789abcdef.tab
|
||||
(
|
||||
uint8 UInt8,
|
||||
uint16 UInt16,
|
||||
uint32 UInt32,
|
||||
uint64 UInt64,
|
||||
uint128 UInt128,
|
||||
uint256 UInt256,
|
||||
int8 Int8,
|
||||
int16 Int16,
|
||||
int32 Int32,
|
||||
int64 Int64,
|
||||
int128 Int128,
|
||||
int256 Int256,
|
||||
nint32 Nullable(Int32),
|
||||
float32 Float32,
|
||||
float64 Float64,
|
||||
decimal_value Decimal(10, 2),
|
||||
boolean_value UInt8,
|
||||
string_value String,
|
||||
fixed_string_value FixedString(10),
|
||||
date_value Date,
|
||||
date32_value Date32,
|
||||
datetime_value DateTime,
|
||||
datetime64_value DateTime64(3),
|
||||
json_value JSON,
|
||||
uuid_value UUID,
|
||||
enum_value Enum8('apple' = 1, 'banana' = 2, 'orange' = 3),
|
||||
low_cardinality LowCardinality(String),
|
||||
low_cardinality_date LowCardinality(DateTime),
|
||||
aggregate_function AggregateFunction(sum, Int32),
|
||||
array_value Array(Int32),
|
||||
map_value Map(String, Int32),
|
||||
tuple_value Tuple(Int32, String),
|
||||
nullable_value Nullable(Int32),
|
||||
ipv4_value IPv4,
|
||||
ipv6_value IPv6,
|
||||
nested Nested
|
||||
(
|
||||
nested_int Int32,
|
||||
nested_string String
|
||||
)
|
||||
) ENGINE = MergeTree
|
||||
ORDER BY uint64;
|
||||
"
|
||||
|
||||
# Write sql to temp file
|
||||
TEMP_FILE=$(mktemp)
|
||||
|
||||
cat <<EOT > $TEMP_FILE
|
||||
SHOW COLUMNS FROM tab;
|
||||
SET use_mysql_types_in_show_columns=1;
|
||||
SHOW COLUMNS FROM tab;
|
||||
SHOW EXTENDED COLUMNS FROM tab;
|
||||
SHOW FULL COLUMNS FROM tab;
|
||||
SHOW COLUMNS FROM tab LIKE '%int%';
|
||||
SHOW COLUMNS FROM tab NOT LIKE '%int%';
|
||||
SHOW COLUMNS FROM tab ILIKE '%INT%';
|
||||
SHOW COLUMNS FROM tab NOT ILIKE '%INT%';
|
||||
SHOW COLUMNS FROM tab WHERE field LIKE '%int%';
|
||||
SHOW COLUMNS FROM tab LIMIT 1;
|
||||
SHOW COLUMNS FROM tab;
|
||||
SHOW COLUMNS FROM tab FROM database_123456789abcdef;
|
||||
SHOW COLUMNS FROM database_123456789abcdef.tab;
|
||||
DROP DATABASE database_123456789abcdef;
|
||||
DROP TABLE tab;
|
||||
EOT
|
||||
|
||||
# Now run the MySQL test script on the ClickHouse DB
|
||||
echo "Run MySQL test"
|
||||
MYSQL_PWD=$PASSWORD ${MYSQL_CLIENT} --user="$USER" --host="$HOST" --port="$PORT" < $TEMP_FILE
|
||||
|
||||
# Clean up the temp file
|
||||
rm $TEMP_FILE
|
||||
|
||||
@ -0,0 +1,63 @@
|
||||
-- Tags: no-fasttest, no-parallel
|
||||
-- no-fasttest: json type needs rapidjson library
|
||||
-- no-parallel: can't provide currentDatabase() to SHOW COLUMNS
|
||||
|
||||
-- Tests setting 'use_mysql_types_in_show_columns' in SHOW COLUMNS and SELECTs on system.columns
|
||||
|
||||
DROP TABLE IF EXISTS tab;
|
||||
|
||||
SET allow_suspicious_low_cardinality_types=1;
|
||||
SET allow_experimental_object_type=1;
|
||||
|
||||
CREATE TABLE tab
|
||||
(
|
||||
uint8 UInt8,
|
||||
uint16 UInt16,
|
||||
uint32 UInt32,
|
||||
uint64 UInt64,
|
||||
uint128 UInt128,
|
||||
uint256 UInt256,
|
||||
int8 Int8,
|
||||
int16 Int16,
|
||||
int32 Int32,
|
||||
int64 Int64,
|
||||
int128 Int128,
|
||||
int256 Int256,
|
||||
nint32 Nullable(Int32),
|
||||
float32 Float32,
|
||||
float64 Float64,
|
||||
decimal_value Decimal(10, 2),
|
||||
boolean_value UInt8,
|
||||
string_value String,
|
||||
fixed_string_value FixedString(10),
|
||||
date_value Date,
|
||||
date32_value Date32,
|
||||
datetime_value DateTime,
|
||||
datetime64_value DateTime64(3),
|
||||
json_value JSON,
|
||||
uuid_value UUID,
|
||||
enum_value Enum8('apple' = 1, 'banana' = 2, 'orange' = 3),
|
||||
low_cardinality LowCardinality(String),
|
||||
low_cardinality_date LowCardinality(DateTime),
|
||||
aggregate_function AggregateFunction(sum, Int32),
|
||||
array_value Array(Int32),
|
||||
map_value Map(String, Int32),
|
||||
tuple_value Tuple(Int32, String),
|
||||
nullable_value Nullable(Int32),
|
||||
ipv4_value IPv4,
|
||||
ipv6_value IPv6,
|
||||
nested Nested
|
||||
(
|
||||
nested_int Int32,
|
||||
nested_string String
|
||||
)
|
||||
) ENGINE = MergeTree
|
||||
ORDER BY uint64;
|
||||
|
||||
SHOW COLUMNS FROM tab SETTINGS use_mysql_types_in_show_columns = 0;
|
||||
SHOW COLUMNS FROM tab SETTINGS use_mysql_types_in_show_columns = 1;
|
||||
|
||||
SELECT name, type FROM system.columns WHERE database = currentDatabase() AND table = 'tab' SETTINGS use_mysql_types_in_show_columns = 0;
|
||||
SELECT name, type FROM system.columns WHERE database = currentDatabase() AND table = 'tab' SETTINGS use_mysql_types_in_show_columns = 1;
|
||||
|
||||
DROP TABLE tab;
|
||||
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Reference in New Issue
Block a user