Database.ClickHouseDriver.Column

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

Documentation

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.

readFixed :: Int -> ByteString -> Reader (Vector ClickhouseType)

readFixedLengthString :: Int -> Reader ClickhouseType

writeStringColumn :: ByteString -> Vector ClickhouseType -> Writer Builder

writeFixedLengthString :: ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readIntColumn :: Int -> ByteString -> Reader (Vector ClickhouseType)

read data in format of bytestring into format of haskell type.

writeIntColumn :: ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

writeUIntColumn :: ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readDateTime :: ServerInfo -> Int -> ByteString -> Reader (Vector ClickhouseType)

readTimeSpec :: ByteString -> (Maybe Int, Maybe ByteString)

readDateTimeWithSpec :: ServerInfo -> Int -> Maybe Int -> ByteString -> Reader (Vector ClickhouseType)

writeDateTime :: ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

c_convert_time :: Int64 -> CString -> Int -> IO CString

c_convert_time64 :: Float -> CString -> Int -> IO CString

c_write_time :: CString -> CString -> Int -> Int -> IO Int32

convert_time_from_int32 :: Int32 -> IO Int32

readLowCardinality :: ServerInfo -> Int -> ByteString -> Reader (Vector ClickhouseType)

writeLowCardinality :: Context -> ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readNullable :: ServerInfo -> Int -> ByteString -> Reader (Vector ClickhouseType)

writeNullable :: Context -> ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readArray :: ServerInfo -> Int -> ByteString -> Reader (Vector ClickhouseType)

readArraySpec :: Vector Word64 -> Reader (Vector Word64)

genSpecs :: ByteString -> [Vector Word64] -> Reader (ByteString, [Vector Word64])

writeArray :: Context -> ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readTuple :: ServerInfo -> Int -> ByteString -> Reader (Vector ClickhouseType)

writeTuple :: Context -> ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readEnum :: Int -> ByteString -> Reader (Vector ClickhouseType)

writeEnum :: ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

readDate :: Int -> Reader (Vector ClickhouseType)

writeDate :: ByteString -> Vector ClickhouseType -> Writer Builder

readDecimal :: Int -> ByteString -> Reader (Vector ClickhouseType)

writeDecimal :: ByteString -> ByteString -> Vector ClickhouseType -> Writer Builder

word128_division :: Word64 -> Word64 -> Int -> Double

low_bits_128 :: Double -> Int -> Word64

hi_bits_128 :: Double -> Int -> Word64

low_bits_negative_128 :: Double -> Int -> Word64

hi_bits_negative_128 :: Double -> Int -> Word64

readIPv4 :: Int -> Reader (Vector ClickhouseType)

readIPv6 :: Int -> Reader (Vector ClickhouseType)

writeIPv4 :: ByteString -> Vector ClickhouseType -> Writer Builder

writeIPv6 :: ByteString -> Vector ClickhouseType -> Writer Builder

readSimpleAggregateFunction :: ServerInfo -> Int -> ByteString -> Reader (Vector ClickhouseType)

readUUID :: Int -> Reader (Vector ClickhouseType)

writeUUID :: ByteString -> Vector ClickhouseType -> Writer Builder

getSpecs :: ByteString -> [ByteString]

Get rid of commas and spaces

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

typeMismatchError :: ByteString -> String

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

print in format