Package org.apache.flink.table.runtime.functions

Class SqlFunctionUtils

java.lang.Object
org.apache.flink.table.runtime.functions.SqlFunctionUtils
public class SqlFunctionUtils extends Object
Built-in scalar runtime functions.

NOTE: Before you add functions here, check if Calcite provides it in org.apache.calcite.runtime.SqlFunctions. Furthermore, make sure to implement the function efficiently. Sometimes it makes sense to create a org.apache.flink.table.codegen.calls.CallGenerator instead to avoid massive object creation and reuse instances.

  • Constructor Summary

    Constructors
    Constructor
    Description
    SqlFunctionUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static byte
    abs(byte b0)
    SQL ABS operator applied to byte values.
    static double
    abs(double b0)
    SQL ABS operator applied to double values.
    static float
    abs(float b0)
    SQL ABS operator applied to float values.
    static int
    abs(int b0)
    SQL ABS operator applied to int values.
    static long
    abs(long b0)
    SQL ABS operator applied to long values.
    static short
    abs(short b0)
    SQL ABS operator applied to short values.
    static org.apache.flink.table.data.DecimalData
    abs(org.apache.flink.table.data.DecimalData a)
     
    static double
    acos(org.apache.flink.table.data.DecimalData a)
     
    static double
    asin(org.apache.flink.table.data.DecimalData a)
     
    static double
    atan(org.apache.flink.table.data.DecimalData a)
     
    static double
    atan2(org.apache.flink.table.data.DecimalData y, org.apache.flink.table.data.DecimalData x)
     
    static Byte
    bitAnd(Byte a, Byte b)
     
    static Integer
    bitAnd(Integer a, Integer b)
     
    static Long
    bitAnd(Long a, Long b)
     
    static Short
    bitAnd(Short a, Short b)
     
    static Byte
    bitNot(Byte a)
     
    static Integer
    bitNot(Integer a)
     
    static Long
    bitNot(Long a)
     
    static Short
    bitNot(Short a)
     
    static Byte
    bitOr(Byte a, Byte b)
     
    static Integer
    bitOr(Integer a, Integer b)
     
    static Long
    bitOr(Long a, Long b)
     
    static Short
    bitOr(Short a, Short b)
     
    static Byte
    bitXor(Byte a, Byte b)
     
    static Integer
    bitXor(Integer a, Integer b)
     
    static Long
    bitXor(Long a, Long b)
     
    static Short
    bitXor(Short a, Short b)
     
    static int
    byteArrayCompare(byte[] array1, byte[] array2)
    Compares two byte arrays in lexicographical order.
    static double
    ceil(double b0)
     
    static float
    ceil(float b0)
     
    static int
    ceil(int b0, int b1)
    SQL CEIL operator applied to int values.
    static long
    ceil(long b0, long b1)
    SQL CEIL operator applied to long values.
    static org.apache.flink.table.data.DecimalData
    ceil(org.apache.flink.table.data.DecimalData a)
     
    static String
    chr(long chr)
     
    static double
    cos(org.apache.flink.table.data.DecimalData a)
     
    static double
    cosh(org.apache.flink.table.data.DecimalData x)
     
    static double
    cot(double b0)
    SQL COT operator applied to double values.
    static double
    cot(org.apache.flink.table.data.DecimalData a)
     
    static double
    degrees(org.apache.flink.table.data.DecimalData angrad)
     
    static int
    divideInt(int a, int b)
     
    static double
    exp(org.apache.flink.table.data.DecimalData d)
     
    static double
    floor(double b0)
     
    static float
    floor(float b0)
     
    static int
    floor(int b0, int b1)
    SQL FLOOR operator applied to int values.
    static long
    floor(long b0, long b1)
    SQL FLOOR operator applied to long values.
    static org.apache.flink.table.data.DecimalData
    floor(org.apache.flink.table.data.DecimalData a)
     
    static org.apache.flink.table.data.binary.BinaryStringData
    fromBase64(byte[] bytes)
     
    static org.apache.flink.table.data.binary.BinaryStringData
    fromBase64(org.apache.flink.table.data.binary.BinaryStringData bs)
     
    static Matcher
    getRegexpMatcher(org.apache.flink.table.data.StringData str, org.apache.flink.table.data.StringData regex)
    Returns a Matcher object that represents the result of matching given StringData against a specified regular expression pattern.
    static String
    hash(String algorithm, String str)
    Calculate the hash value of a given string.
    static String
    hash(String algorithm, String str, String charsetName)
    Calculate the hash value of a given string.
    static Integer
    hashCode(String str)
     
    static String
    hex(long x)
    Returns the hex string of a long argument.
    static String
    hex(String x)
    Returns the hex string of a string argument.
    static String
    initcap(String s)
    SQL INITCAP(string) function.
    static int
    instr(org.apache.flink.table.data.binary.BinaryStringData str, org.apache.flink.table.data.binary.BinaryStringData subString, int startPosition, int nthAppearance)
     
    static boolean
    isAlpha(Object obj)
     
    static boolean
    isDecimal(Object obj)
     
    static boolean
    isDigit(Object obj)
     
    static org.apache.flink.table.data.binary.BinaryStringData
    keyValue(org.apache.flink.table.data.binary.BinaryStringData str, org.apache.flink.table.data.binary.BinaryStringData pairSeparator, org.apache.flink.table.data.binary.BinaryStringData kvSeparator, org.apache.flink.table.data.binary.BinaryStringData keyName)
    Parse string as key-value string and return the value matches key name. example: keyvalue('k1=v1;k2=v2', ';', '=', 'k2') = 'v2' keyvalue('k1:v1,k2:v2', ',', ':', 'k3') = NULL
    static double
    log(double x)
    Returns the natural logarithm of "x".
    static double
    log(double base, double x)
    Returns the logarithm of "x" with base "base".
    static double
    log(double base, org.apache.flink.table.data.DecimalData x)
     
    static double
    log(org.apache.flink.table.data.DecimalData x)
     
    static double
    log(org.apache.flink.table.data.DecimalData base, double x)
     
    static double
    log(org.apache.flink.table.data.DecimalData base, org.apache.flink.table.data.DecimalData x)
     
    static double
    log10(double x)
     
    static double
    log10(org.apache.flink.table.data.DecimalData x)
     
    static double
    log2(double x)
    Returns the logarithm of "a" with base 2.
    static double
    log2(org.apache.flink.table.data.DecimalData x)
     
    static String
    lpad(String base, int len, String pad)
    Returns the string str left-padded with the string pad to a length of len characters.
    static String
    overlay(String s, String r, long start)
     
    static String
    overlay(String s, String r, long start, long length)
     
    static String
    parseUrl(String urlStr, String partToExtract)
    Parse url and return various components of the URL.
    static String
    parseUrl(String urlStr, String partToExtract, String key)
    Parse url and return various parameter of the URL.
    static int
    position(org.apache.flink.table.data.binary.BinaryStringData seek, org.apache.flink.table.data.binary.BinaryStringData s)
     
    static int
    position(org.apache.flink.table.data.binary.BinaryStringData seek, org.apache.flink.table.data.binary.BinaryStringData s, int from)
     
    static double
    power(double base, org.apache.flink.table.data.DecimalData exponent)
     
    static double
    power(org.apache.flink.table.data.DecimalData base, double exponent)
     
    static double
    power(org.apache.flink.table.data.DecimalData base, org.apache.flink.table.data.DecimalData exponent)
     
    static double
    radians(org.apache.flink.table.data.DecimalData angdeg)
     
    static Boolean
    regExp(String s, String regex)
     
    static String
    regexpExtract(String str, String regex)
    Returns the first string extracted with a specified regular expression.
    static String
    regexpExtract(String str, String regex, int extractIndex)
    Returns a string extracted with a specified regular expression and a regex match group index.
    static String
    regexpExtract(String str, String regex, long extractIndex)
     
    static String
    regexpReplace(String str, String regex, String replacement)
    Returns a string resulting from replacing all substrings that match the regular expression with replacement.
    static String
    repeat(String str, int repeat)
    Returns a string that repeats the base string n times.
    static String
    replace(String str, String oldStr, String replacement)
    Replaces all the old strings with the replacement string.
    static String
    rpad(String base, int len, String pad)
    Returns the string str right-padded with the string pad to a length of len characters.
    static org.apache.flink.table.data.DecimalData
    sign(org.apache.flink.table.data.DecimalData b0)
     
    static double
    sin(org.apache.flink.table.data.DecimalData a)
     
    static double
    sinh(org.apache.flink.table.data.DecimalData a)
     
    static String
    splitIndex(String str, int character, int index)
    Split target string with custom separator and pick the index-th(start with 0) result.
    static String
    splitIndex(String str, String separator, int index)
    Split target string with custom separator and pick the index-th(start with 0) result.
    static byte
    sround(byte b0)
    SQL ROUND operator applied to byte values.
    static byte
    sround(byte b0, int b1)
    SQL ROUND operator applied to byte values.
    static double
    sround(double b0)
    SQL ROUND operator applied to double values.
    static double
    sround(double b0, int b1)
    SQL ROUND operator applied to double values.
    static float
    sround(float b0)
    SQL ROUND operator applied to float values.
    static float
    sround(float b0, int b1)
    SQL ROUND operator applied to float values.
    static int
    sround(int b0)
    SQL ROUND operator applied to int values.
    static int
    sround(int b0, int b1)
    SQL ROUND operator applied to int values.
    static long
    sround(long b0)
    SQL ROUND operator applied to long values.
    static long
    sround(long b0, int b1)
    SQL ROUND operator applied to long values.
    static short
    sround(short b0)
    SQL ROUND operator applied to short values.
    static short
    sround(short b0, int b1)
    SQL ROUND operator applied to short values.
    static BigDecimal
    sround(BigDecimal b0)
    SQL ROUND operator applied to BigDecimal values.
    static BigDecimal
    sround(BigDecimal b0, int b1)
    SQL ROUND operator applied to BigDecimal values.
    static org.apache.flink.table.data.DecimalData
    sround(org.apache.flink.table.data.DecimalData b0)
    SQL ROUND operator applied to DecimalData values.
    static org.apache.flink.table.data.DecimalData
    sround(org.apache.flink.table.data.DecimalData b0, int b1)
    SQL ROUND operator applied to DecimalData values.
    static Map<String,String>
    strToMap(String text)
    Creates a map by parsing text.
    static Map<String,String>
    strToMap(String text, String listDelimiter, String keyValueDelimiter)
    Creates a map by parsing text.
    static double
    struncate(double b0)
    SQL TRUNCATE operator applied to double values.
    static double
    struncate(double b0, int b1)
     
    static float
    struncate(float b0)
    SQL TRUNCATE operator applied to double values.
    static float
    struncate(float b0, int b1)
     
    static int
    struncate(int b0)
    SQL TRUNCATE operator applied to int values.
    static int
    struncate(int b0, int b1)
     
    static long
    struncate(long b0)
    SQL TRUNCATE operator applied to long values.
    static long
    struncate(long b0, int b1)
     
    static org.apache.flink.table.data.DecimalData
    struncate(org.apache.flink.table.data.DecimalData b0)
    SQL TRUNCATE operator applied to BigDecimal values.
    static org.apache.flink.table.data.DecimalData
    struncate(org.apache.flink.table.data.DecimalData b0, int b1)
     
    static String
    subString(String str, long start)
     
    static String
    subString(String str, long start, long len)
     
    static double
    tan(org.apache.flink.table.data.DecimalData a)
     
    static double
    tanh(org.apache.flink.table.data.DecimalData a)
    Calculates the hyperbolic tangent of a big decimal number.
    static String
    toBase64(byte[] bytes)
     
    static String
    toBase64(org.apache.flink.table.data.binary.BinaryStringData bs)
     
    static String
    uuid()
     
    static String
    uuid(byte[] b)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • SqlFunctionUtils

      public SqlFunctionUtils()

  • Method Details

    • exp

      public static double exp(org.apache.flink.table.data.DecimalData d)

    • power

      public static double power(double base, org.apache.flink.table.data.DecimalData exponent)

    • power

      public static double power(org.apache.flink.table.data.DecimalData base, org.apache.flink.table.data.DecimalData exponent)

    • power

      public static double power(org.apache.flink.table.data.DecimalData base, double exponent)

    • cosh

      public static double cosh(org.apache.flink.table.data.DecimalData x)

    • acos

      public static double acos(org.apache.flink.table.data.DecimalData a)

    • asin

      public static double asin(org.apache.flink.table.data.DecimalData a)

    • atan

      public static double atan(org.apache.flink.table.data.DecimalData a)

    • atan2

      public static double atan2(org.apache.flink.table.data.DecimalData y, org.apache.flink.table.data.DecimalData x)

    • sin

      public static double sin(org.apache.flink.table.data.DecimalData a)

    • sinh

      public static double sinh(org.apache.flink.table.data.DecimalData a)

    • cos

      public static double cos(org.apache.flink.table.data.DecimalData a)

    • tan

      public static double tan(org.apache.flink.table.data.DecimalData a)

    • tanh

      public static double tanh(org.apache.flink.table.data.DecimalData a)
      Calculates the hyperbolic tangent of a big decimal number.

    • cot

      public static double cot(double b0)
      SQL COT operator applied to double values.

    • cot

      public static double cot(org.apache.flink.table.data.DecimalData a)

    • degrees

      public static double degrees(org.apache.flink.table.data.DecimalData angrad)

    • radians

      public static double radians(org.apache.flink.table.data.DecimalData angdeg)

    • abs

      public static byte abs(byte b0)
      SQL ABS operator applied to byte values.

    • abs

      public static short abs(short b0)
      SQL ABS operator applied to short values.

    • abs

      public static int abs(int b0)
      SQL ABS operator applied to int values.

    • abs

      public static long abs(long b0)
      SQL ABS operator applied to long values.

    • abs

      public static float abs(float b0)
      SQL ABS operator applied to float values.

    • abs

      public static double abs(double b0)
      SQL ABS operator applied to double values.

    • abs

      public static org.apache.flink.table.data.DecimalData abs(org.apache.flink.table.data.DecimalData a)

    • floor

      public static double floor(double b0)

    • floor

      public static float floor(float b0)

    • floor

      public static int floor(int b0, int b1)
      SQL FLOOR operator applied to int values.

    • floor

      public static long floor(long b0, long b1)
      SQL FLOOR operator applied to long values.

    • floor

      public static org.apache.flink.table.data.DecimalData floor(org.apache.flink.table.data.DecimalData a)

    • ceil

      public static double ceil(double b0)

    • ceil

      public static float ceil(float b0)

    • ceil

      public static int ceil(int b0, int b1)
      SQL CEIL operator applied to int values.

    • ceil

      public static long ceil(long b0, long b1)
      SQL CEIL operator applied to long values.

    • ceil

      public static org.apache.flink.table.data.DecimalData ceil(org.apache.flink.table.data.DecimalData a)

    • log

      public static double log(double x)
      Returns the natural logarithm of "x".

    • log

      public static double log(org.apache.flink.table.data.DecimalData x)

    • log

      public static double log(double base, double x)
      Returns the logarithm of "x" with base "base".

    • log

      public static double log(double base, org.apache.flink.table.data.DecimalData x)

    • log

      public static double log(org.apache.flink.table.data.DecimalData base, double x)

    • log

      public static double log(org.apache.flink.table.data.DecimalData base, org.apache.flink.table.data.DecimalData x)

    • log2

      public static double log2(double x)
      Returns the logarithm of "a" with base 2.

    • log2

      public static double log2(org.apache.flink.table.data.DecimalData x)

    • log10

      public static double log10(double x)

    • log10

      public static double log10(org.apache.flink.table.data.DecimalData x)

    • lpad

      public static String lpad(String base, int len, String pad)
      Returns the string str left-padded with the string pad to a length of len characters. If str is longer than len, the return value is shortened to len characters.

    • rpad

      public static String rpad(String base, int len, String pad)
      Returns the string str right-padded with the string pad to a length of len characters. If str is longer than len, the return value is shortened to len characters.

    • repeat

      public static String repeat(String str, int repeat)
      Returns a string that repeats the base string n times.

    • replace

      public static String replace(String str, String oldStr, String replacement)
      Replaces all the old strings with the replacement string.

    • splitIndex

      public static String splitIndex(String str, String separator, int index)
      Split target string with custom separator and pick the index-th(start with 0) result.
      Parameters:
      str - target string.
      separator - custom separator.
      index - index of the result which you want.
      Returns:
      the string at the index of split results.

    • splitIndex

      public static String splitIndex(String str, int character, int index)
      Split target string with custom separator and pick the index-th(start with 0) result.
      Parameters:
      str - target string.
      character - int value of the separator character
      index - index of the result which you want.
      Returns:
      the string at the index of split results.

    • regexpReplace

      public static String regexpReplace(String str, String regex, String replacement)
      Returns a string resulting from replacing all substrings that match the regular expression with replacement.

    • regexpExtract

      public static String regexpExtract(String str, String regex, int extractIndex)
      Returns a string extracted with a specified regular expression and a regex match group index.

    • regexpExtract

      public static String regexpExtract(String str, String regex, long extractIndex)

    • regexpExtract

      public static String regexpExtract(String str, String regex)
      Returns the first string extracted with a specified regular expression.

    • getRegexpMatcher

      public static Matcher getRegexpMatcher(@Nullable org.apache.flink.table.data.StringData str, @Nullable org.apache.flink.table.data.StringData regex)
      Returns a Matcher object that represents the result of matching given StringData against a specified regular expression pattern.

    • keyValue

      public static org.apache.flink.table.data.binary.BinaryStringData keyValue(org.apache.flink.table.data.binary.BinaryStringData str, org.apache.flink.table.data.binary.BinaryStringData pairSeparator, org.apache.flink.table.data.binary.BinaryStringData kvSeparator, org.apache.flink.table.data.binary.BinaryStringData keyName)
      Parse string as key-value string and return the value matches key name. example: keyvalue('k1=v1;k2=v2', ';', '=', 'k2') = 'v2' keyvalue('k1:v1,k2:v2', ',', ':', 'k3') = NULL
      Parameters:
      str - target string.
      pairSeparator - separator between key-value tuple.
      kvSeparator - separator between key and value.
      keyName - name of the key whose value you want return.
      Returns:
      target value.

    • hash

      public static String hash(String algorithm, String str)
      Calculate the hash value of a given string.
      Parameters:
      algorithm - message digest algorithm.
      str - string to hash.
      Returns:
      hash value of string.

    • hash

      public static String hash(String algorithm, String str, String charsetName)
      Calculate the hash value of a given string.
      Parameters:
      algorithm - message digest algorithm.
      str - string to hash.
      charsetName - charset of string.
      Returns:
      hash value of string.

    • parseUrl

      public static String parseUrl(String urlStr, String partToExtract)
      Parse url and return various components of the URL. If accept any null arguments, return null.
      Parameters:
      urlStr - URL string.
      partToExtract - determines which components would return. accept values: HOST,PATH,QUERY,REF, PROTOCOL,FILE,AUTHORITY,USERINFO
      Returns:
      target value.

    • parseUrl

      public static String parseUrl(String urlStr, String partToExtract, String key)
      Parse url and return various parameter of the URL. If accept any null arguments, return null.
      Parameters:
      urlStr - URL string.
      partToExtract - must be QUERY, or return null.
      key - parameter name.
      Returns:
      target value.

    • divideInt

      public static int divideInt(int a, int b)

    • subString

      public static String subString(String str, long start, long len)

    • subString

      public static String subString(String str, long start)

    • chr

      public static String chr(long chr)

    • overlay

      public static String overlay(String s, String r, long start, long length)

    • overlay

      public static String overlay(String s, String r, long start)

    • position

      public static int position(org.apache.flink.table.data.binary.BinaryStringData seek, org.apache.flink.table.data.binary.BinaryStringData s)

    • position

      public static int position(org.apache.flink.table.data.binary.BinaryStringData seek, org.apache.flink.table.data.binary.BinaryStringData s, int from)

    • instr

      public static int instr(org.apache.flink.table.data.binary.BinaryStringData str, org.apache.flink.table.data.binary.BinaryStringData subString, int startPosition, int nthAppearance)

    • hex

      public static String hex(long x)
      Returns the hex string of a long argument.

    • hex

      public static String hex(String x)
      Returns the hex string of a string argument.

    • strToMap

      public static Map<String,String> strToMap(String text)
      Creates a map by parsing text. Split text into key-value pairs using two delimiters. The first delimiter separates pairs, and the second delimiter separates key and value. If only one parameter is given, default delimiters are used: ',' as delimiter1 and '=' as delimiter2. Both delimiters are treated as regular expressions.
      Parameters:
      text - the input text
      Returns:
      the map

    • strToMap

      public static Map<String,String> strToMap(String text, String listDelimiter, String keyValueDelimiter)
      Creates a map by parsing text. Split text into key-value pairs using two delimiters. The first delimiter separates pairs, and the second delimiter separates key and value. Both listDelimiter and keyValueDelimiter are treated as regular expressions.
      Parameters:
      text - the input text
      listDelimiter - the delimiter to separates pairs
      keyValueDelimiter - the delimiter to separates key and value
      Returns:
      the map

    • sround

      public static byte sround(byte b0)
      SQL ROUND operator applied to byte values.

    • sround

      public static byte sround(byte b0, int b1)
      SQL ROUND operator applied to byte values.

    • sround

      public static short sround(short b0)
      SQL ROUND operator applied to short values.

    • sround

      public static short sround(short b0, int b1)
      SQL ROUND operator applied to short values.

    • sround

      public static int sround(int b0)
      SQL ROUND operator applied to int values.

    • sround

      public static int sround(int b0, int b1)
      SQL ROUND operator applied to int values.

    • sround

      public static long sround(long b0)
      SQL ROUND operator applied to long values.

    • sround

      public static long sround(long b0, int b1)
      SQL ROUND operator applied to long values.

    • sround

      public static BigDecimal sround(BigDecimal b0)
      SQL ROUND operator applied to BigDecimal values.

    • sround

      public static BigDecimal sround(BigDecimal b0, int b1)
      SQL ROUND operator applied to BigDecimal values.

    • sround

      public static float sround(float b0)
      SQL ROUND operator applied to float values.

    • sround

      public static float sround(float b0, int b1)
      SQL ROUND operator applied to float values.

    • sround

      public static double sround(double b0)
      SQL ROUND operator applied to double values.

    • sround

      public static double sround(double b0, int b1)
      SQL ROUND operator applied to double values.

    • sround

      public static org.apache.flink.table.data.DecimalData sround(org.apache.flink.table.data.DecimalData b0)
      SQL ROUND operator applied to DecimalData values.

    • sround

      public static org.apache.flink.table.data.DecimalData sround(org.apache.flink.table.data.DecimalData b0, int b1)
      SQL ROUND operator applied to DecimalData values.

    • sign

      public static org.apache.flink.table.data.DecimalData sign(org.apache.flink.table.data.DecimalData b0)

    • isDecimal

      public static boolean isDecimal(Object obj)

    • isDigit

      public static boolean isDigit(Object obj)

    • isAlpha

      public static boolean isAlpha(Object obj)

    • hashCode

      public static Integer hashCode(String str)

    • regExp

      public static Boolean regExp(String s, String regex)

    • bitAnd

      public static Byte bitAnd(Byte a, Byte b)

    • bitAnd

      public static Short bitAnd(Short a, Short b)

    • bitAnd

      public static Integer bitAnd(Integer a, Integer b)

    • bitAnd

      public static Long bitAnd(Long a, Long b)

    • bitNot

      public static Byte bitNot(Byte a)

    • bitNot

      public static Short bitNot(Short a)

    • bitNot

      public static Integer bitNot(Integer a)

    • bitNot

      public static Long bitNot(Long a)

    • bitOr

      public static Byte bitOr(Byte a, Byte b)

    • bitOr

      public static Short bitOr(Short a, Short b)

    • bitOr

      public static Integer bitOr(Integer a, Integer b)

    • bitOr

      public static Long bitOr(Long a, Long b)

    • bitXor

      public static Byte bitXor(Byte a, Byte b)

    • bitXor

      public static Short bitXor(Short a, Short b)

    • bitXor

      public static Integer bitXor(Integer a, Integer b)

    • bitXor

      public static Long bitXor(Long a, Long b)

    • toBase64

      public static String toBase64(org.apache.flink.table.data.binary.BinaryStringData bs)

    • toBase64

      public static String toBase64(byte[] bytes)

    • fromBase64

      public static org.apache.flink.table.data.binary.BinaryStringData fromBase64(org.apache.flink.table.data.binary.BinaryStringData bs)

    • fromBase64

      public static org.apache.flink.table.data.binary.BinaryStringData fromBase64(byte[] bytes)

    • uuid

      public static String uuid()

    • uuid

      public static String uuid(byte[] b)

    • struncate

      public static int struncate(int b0)
      SQL TRUNCATE operator applied to int values.

    • struncate

      public static int struncate(int b0, int b1)

    • struncate

      public static long struncate(long b0)
      SQL TRUNCATE operator applied to long values.

    • struncate

      public static long struncate(long b0, int b1)

    • struncate

      public static org.apache.flink.table.data.DecimalData struncate(org.apache.flink.table.data.DecimalData b0)
      SQL TRUNCATE operator applied to BigDecimal values.

    • struncate

      public static org.apache.flink.table.data.DecimalData struncate(org.apache.flink.table.data.DecimalData b0, int b1)

    • struncate

      public static float struncate(float b0)
      SQL TRUNCATE operator applied to double values.

    • struncate

      public static float struncate(float b0, int b1)

    • struncate

      public static double struncate(double b0)
      SQL TRUNCATE operator applied to double values.

    • struncate

      public static double struncate(double b0, int b1)

    • byteArrayCompare

      public static int byteArrayCompare(byte[] array1, byte[] array2)
      Compares two byte arrays in lexicographical order.

      The result is positive if array1 is great than array2, negative if array1 is less than array2 and 0 if array1 is equal to array2.

      Note: Currently, this is used in ScalarOperatorGens for comparing two fields of binary or varbinary type.

      Parameters:
      array1 - byte array to compare.
      array2 - byte array to compare.
      Returns:
      an Integer indicating which one is bigger

    • initcap

      public static String initcap(String s)
      SQL INITCAP(string) function.