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系统。data_type_families

包含有关受支持的信息数据类型.

列:

name (字符串) — Data type name.
case_insensitive (UInt8) — Property that shows whether you can use a data type name in a query in case insensitive manner or not. For example, Date 和 date 都是有效的。
alias_to (字符串) — Data type name for which name 是个化名

示例

SELECT * FROM system.data_type_families WHERE alias_to = 'String'

┌─name───────┬─case_insensitive─┬─alias_to─┐
│ LONGBLOB   │                1 │ String   │
│ LONGTEXT   │                1 │ String   │
│ TINYTEXT   │                1 │ String   │
│ TEXT       │                1 │ String   │
│ VARCHAR    │                1 │ String   │
│ MEDIUMBLOB │                1 │ String   │
│ BLOB       │                1 │ String   │
│ TINYBLOB   │                1 │ String   │
│ CHAR       │                1 │ String   │
│ MEDIUMTEXT │                1 │ String   │
└────────────┴──────────────────┴──────────┘

另请参阅

语法 — Information about supported syntax.