ClickHouse Data Types (Basic Types, Special Types, Array Types, Tuples, etc.)

Basic Types

  • Integer: In ClickHouse, integers can be 32-bit or 64-bit.
  • Decimal: ClickHouse supports the presence and position of decimal points.
  • String: Strings in ClickHouse are sequences of Unicode characters.

Special Types

  • dates and timestamps: ClickHouse supports date and timestamp types, which represent time and date respectively.
  • timeints and tinyintegers: ClickHouse supports integer types with lower precision.
  • floats and decimals: ClickHouse supports the presence and position of decimal points.

Array Types

  • Array: Arrays in ClickHouse are collections of values that can be variable-sized and contain elements of different data types.

Tuple Types

  • Tuple: A tuple in ClickHouse is a collection with fixed size, typically used to represent structured data.
  • tuple: The tuple type in ClickHouse is similar to the tuple in Python; it represents an immutable and printable sequence.