Database.ClickHouseDriver.Column

This module contains the implementations of serialization and deserialization of Clickhouse data types.

Serialize and deserialize

data ClickhouseType

Constructors

CKInt8 Int8

CKInt16 Int16

CKInt32 Int32

CKInt64 Int64

CKInt128 Int64 Int64

CKUInt8 Word8

CKUInt16 Word16

CKUInt32 Word32

CKUInt64 Word64

CKUInt128 Word64 Word64

CKString ByteString

CKTuple (Vector ClickhouseType)

CKArray (Vector ClickhouseType)

CKDecimal Float

CKDecimal32 Float

CKDecimal64 Double

CKDecimal128 Double

CKIPv4 (Word8, Word8, Word8, Word8)

CKIPv6 (Word16, Word16, Word16, Word16, Word16, Word16, Word16, Word16)

CKDate

Fields

• year :: !Integer
• month :: !Int
• day :: !Int

CKNull

Instances

Eq ClickhouseType

Defined in Database.ClickHouseDriver.Types

Methods

(==) :: ClickhouseType -> ClickhouseType -> Bool

(/=) :: ClickhouseType -> ClickhouseType -> Bool

Show ClickhouseType

Defined in Database.ClickHouseDriver.Types

Methods

showsPrec :: Int -> ClickhouseType -> ShowS

show :: ClickhouseType -> String

showList :: [ClickhouseType] -> ShowS

readColumn

Arguments

:: ServerInfo

Server information is needed in case of some parameters are missing

-> Int

number of rows

-> ByteString

data type

-> Reader (Vector ClickhouseType)

writeColumn

Arguments

:: Context

context contains client information and server information

-> ByteString

column name

-> ByteString

column type (String, Int, etc)

-> Vector ClickhouseType

items to be serialized.

-> Writer Builder

result wrapped in a customized Writer Monad used for concatenating string builders.

Operations on ClickhouseType

transpose :: Vector (Vector ClickhouseType) -> Vector (Vector ClickhouseType)

putStrLn :: Vector (Vector ClickhouseType) -> IO ()

print in format