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// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
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// KIND, either express or implied. See the License for the
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// under the License.
package org.apache.doris.rewrite;
import org.apache.doris.analysis.ArrayLiteral;
import org.apache.doris.analysis.DateLiteral;
import org.apache.doris.analysis.DecimalLiteral;
import org.apache.doris.analysis.FloatLiteral;
import org.apache.doris.analysis.IntLiteral;
import org.apache.doris.analysis.LargeIntLiteral;
import org.apache.doris.analysis.LiteralExpr;
import org.apache.doris.analysis.NullLiteral;
import org.apache.doris.analysis.StringLiteral;
import org.apache.doris.catalog.Type;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.InvalidFormatException;
import org.apache.doris.common.util.TimeUtils;
import org.apache.doris.qe.GlobalVariable;
import com.google.common.base.Preconditions;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.time.LocalDateTime;
/**
* compute functions in FE.
*
* when you add a new function, please ensure the name, argTypes,
* returnType and compute logic are consistent with BE's function
*/
public class FEFunctions {
private static final Logger LOG = LogManager.getLogger(FEFunctions.class);
@FEFunction(name = "version", argTypes = {}, returnType = "VARCHAR")
public static StringLiteral version() throws AnalysisException {
return new StringLiteral(GlobalVariable.version);
}
/**
* date and time function
*/
@FEFunction(name = "timediff", argTypes = { "DATETIME", "DATETIME" }, returnType = "TIME")
public static FloatLiteral timeDiff(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long firstTimestamp = ((DateLiteral) first).unixTimestamp(TimeUtils.getTimeZone());
long secondTimestamp = ((DateLiteral) second).unixTimestamp(TimeUtils.getTimeZone());
return new FloatLiteral((double) (firstTimestamp - secondTimestamp) / 1000,
FloatLiteral.getDefaultTimeType(Type.TIME));
}
@FEFunction(name = "datediff", argTypes = { "DATETIME", "DATETIME" }, returnType = "INT")
public static IntLiteral dateDiff(LiteralExpr first, LiteralExpr second) throws AnalysisException {
DateLiteral firstDate = ((DateLiteral) first);
DateLiteral secondDate = ((DateLiteral) second);
// DATEDIFF function only uses the date part for calculations and ignores the time part
firstDate.castToDate();
secondDate.castToDate();
long datediff = (firstDate.unixTimestamp(TimeUtils.getTimeZone())
- secondDate.unixTimestamp(TimeUtils.getTimeZone())) / 1000 / 60 / 60 / 24;
return new IntLiteral(datediff, Type.INT);
}
@FEFunction(name = "dayofweek", argTypes = {"DATETIME"}, returnType = "TINYINT")
public static IntLiteral dayOfWeek(LiteralExpr date) throws AnalysisException {
// use zellar algorithm.
long year = ((DateLiteral) date).getYear();
long month = ((DateLiteral) date).getMonth();
long day = ((DateLiteral) date).getDay();
if (month < 3) {
month += 12;
year -= 1;
}
long c = year / 100;
long y = year % 100;
long t;
if (date.compareTo(new DateLiteral(1582, 10, 4)) > 0) {
t = (y + y / 4 + c / 4 - 2 * c + 26 * (month + 1) / 10 + day - 1) % 7;
} else {
t = (y + y / 4 - c + 26 * (month + 1) / 10 + day + 4) % 7;
}
return new IntLiteral(t + 1);
}
@FEFunction(name = "date_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral dateAdd(LiteralExpr date, LiteralExpr day) throws AnalysisException {
return daysAdd(date, day);
}
@FEFunction(name = "adddate", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral addDate(LiteralExpr date, LiteralExpr day) throws AnalysisException {
return daysAdd(date, day);
}
@FEFunction(name = "years_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral yearsAdd(LiteralExpr date, LiteralExpr year) throws AnalysisException {
DateLiteral dateLiteral = (DateLiteral) date;
return dateLiteral.plusYears((int) year.getLongValue());
}
@FEFunction(name = "months_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral monthsAdd(LiteralExpr date, LiteralExpr month) throws AnalysisException {
DateLiteral dateLiteral = (DateLiteral) date;
return dateLiteral.plusMonths((int) month.getLongValue());
}
@FEFunction(name = "days_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral daysAdd(LiteralExpr date, LiteralExpr day) throws AnalysisException {
DateLiteral dateLiteral = (DateLiteral) date;
return dateLiteral.plusDays((int) day.getLongValue());
}
@FEFunction(name = "hours_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral hoursAdd(LiteralExpr date, LiteralExpr hour) throws AnalysisException {
DateLiteral dateLiteral = (DateLiteral) date;
return dateLiteral.plusHours((int) hour.getLongValue());
}
@FEFunction(name = "minutes_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral minutesAdd(LiteralExpr date, LiteralExpr minute) throws AnalysisException {
DateLiteral dateLiteral = (DateLiteral) date;
return dateLiteral.plusMinutes((int) minute.getLongValue());
}
@FEFunction(name = "seconds_add", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral secondsAdd(LiteralExpr date, LiteralExpr second) throws AnalysisException {
DateLiteral dateLiteral = (DateLiteral) date;
return dateLiteral.plusSeconds((int) second.getLongValue());
}
@FEFunction(name = "date_format", argTypes = { "DATETIME", "VARCHAR" }, returnType = "VARCHAR")
public static StringLiteral dateFormat(LiteralExpr date, StringLiteral fmtLiteral) throws AnalysisException {
String result = ((DateLiteral) date).dateFormat(fmtLiteral.getStringValue());
return new StringLiteral(result);
}
@FEFunction(name = "str_to_date", argTypes = { "VARCHAR", "VARCHAR" }, returnType = "DATETIME")
public static DateLiteral dateParse(StringLiteral date, StringLiteral fmtLiteral) throws AnalysisException {
DateLiteral dateLiteral = new DateLiteral();
try {
dateLiteral.fromDateFormatStr(fmtLiteral.getStringValue(), date.getStringValue(), false);
dateLiteral.setType(dateLiteral.getType());
return dateLiteral;
} catch (InvalidFormatException e) {
throw new AnalysisException(e.getMessage());
}
}
@FEFunction(name = "date_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral dateSub(LiteralExpr date, LiteralExpr day) throws AnalysisException {
return dateAdd(date, new IntLiteral(-(int) day.getLongValue()));
}
@FEFunction(name = "years_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral yearsSub(LiteralExpr date, LiteralExpr year) throws AnalysisException {
return yearsAdd(date, new IntLiteral(-(int) year.getLongValue()));
}
@FEFunction(name = "months_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral monthsSub(LiteralExpr date, LiteralExpr month) throws AnalysisException {
return monthsAdd(date, new IntLiteral(-(int) month.getLongValue()));
}
@FEFunction(name = "days_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral daysSub(LiteralExpr date, LiteralExpr day) throws AnalysisException {
return daysAdd(date, new IntLiteral(-(int) day.getLongValue()));
}
@FEFunction(name = "hours_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral hoursSub(LiteralExpr date, LiteralExpr hour) throws AnalysisException {
return hoursAdd(date, new IntLiteral(-(int) hour.getLongValue()));
}
@FEFunction(name = "minutes_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral minutesSub(LiteralExpr date, LiteralExpr minute) throws AnalysisException {
return minutesAdd(date, new IntLiteral(-(int) minute.getLongValue()));
}
@FEFunction(name = "seconds_sub", argTypes = { "DATETIME", "INT" }, returnType = "DATETIME")
public static DateLiteral secondsSub(LiteralExpr date, LiteralExpr second) throws AnalysisException {
return secondsAdd(date, new IntLiteral(-(int) second.getLongValue()));
}
@FEFunction(name = "year", argTypes = { "DATETIME" }, returnType = "SMALLINT")
public static IntLiteral year(LiteralExpr arg) throws AnalysisException {
return new IntLiteral(((DateLiteral) arg).getYear(), Type.INT);
}
@FEFunction(name = "month", argTypes = { "DATETIME" }, returnType = "TINYINT")
public static IntLiteral month(LiteralExpr arg) throws AnalysisException {
return new IntLiteral(((DateLiteral) arg).getMonth(), Type.INT);
}
@FEFunction(name = "day", argTypes = { "DATETIME" }, returnType = "TINYINT")
public static IntLiteral day(LiteralExpr arg) throws AnalysisException {
return new IntLiteral(((DateLiteral) arg).getDay(), Type.INT);
}
@FEFunction(name = "unix_timestamp", argTypes = { "DATETIME" }, returnType = "INT")
public static IntLiteral unixTimestamp(LiteralExpr arg) throws AnalysisException {
long unixTime = ((DateLiteral) arg).unixTimestamp(TimeUtils.getTimeZone()) / 1000;
// date before 1970-01-01 or after 2038-01-19 03:14:07 should return 0 for unix_timestamp() function
unixTime = unixTime < 0 ? 0 : unixTime;
unixTime = unixTime > Integer.MAX_VALUE ? 0 : unixTime;
return new IntLiteral(unixTime, Type.INT);
}
@FEFunction(name = "unix_timestamp", argTypes = { "DATE" }, returnType = "INT")
public static IntLiteral unixTimestamp2(LiteralExpr arg) throws AnalysisException {
long unixTime = ((DateLiteral) arg).unixTimestamp(TimeUtils.getTimeZone()) / 1000;
// date before 1970-01-01 or after 2038-01-19 03:14:07 should return 0 for unix_timestamp() function
unixTime = unixTime < 0 ? 0 : unixTime;
unixTime = unixTime > Integer.MAX_VALUE ? 0 : unixTime;
return new IntLiteral(unixTime, Type.INT);
}
@FEFunction(name = "from_unixtime", argTypes = { "INT" }, returnType = "VARCHAR")
public static StringLiteral fromUnixTime(LiteralExpr unixTime) throws AnalysisException {
// if unixTime < 0, we should return null, throw a exception and let BE process
if (unixTime.getLongValue() < 0) {
throw new AnalysisException("unixtime should larger than zero");
}
DateLiteral dl = new DateLiteral(unixTime.getLongValue() * 1000, TimeUtils.getTimeZone(),
Type.DATETIME);
return new StringLiteral(dl.getStringValue());
}
@FEFunction(name = "from_unixtime", argTypes = { "INT", "VARCHAR" }, returnType = "VARCHAR")
public static StringLiteral fromUnixTime(LiteralExpr unixTime, StringLiteral fmtLiteral) throws AnalysisException {
// if unixTime < 0, we should return null, throw a exception and let BE process
if (unixTime.getLongValue() < 0) {
throw new AnalysisException("unixtime should larger than zero");
}
DateLiteral dl = new DateLiteral(unixTime.getLongValue() * 1000, TimeUtils.getTimeZone(),
Type.DATETIME);
return new StringLiteral(dl.dateFormat(fmtLiteral.getStringValue()));
}
@FEFunction(name = "now", argTypes = {}, returnType = "DATETIME")
public static DateLiteral now() throws AnalysisException {
return new DateLiteral(LocalDateTime.now(TimeUtils.getTimeZone().toZoneId()),
Type.DATETIME);
}
@FEFunction(name = "current_timestamp", argTypes = {}, returnType = "DATETIME")
public static DateLiteral currentTimestamp() throws AnalysisException {
return now();
}
@FEFunction(name = "curdate", argTypes = {}, returnType = "DATE")
public static DateLiteral curDate() {
return new DateLiteral(LocalDateTime.now(TimeUtils.getTimeZone().toZoneId()),
Type.DATE);
}
@FEFunction(name = "current_date", argTypes = {}, returnType = "DATE")
public static DateLiteral currentDate() {
return curDate();
}
@FEFunction(name = "curtime", argTypes = {}, returnType = "TIME")
public static FloatLiteral curTime() throws AnalysisException {
DateLiteral now = now();
return new FloatLiteral((double) (now.getHour() * 3600 + now.getMinute() * 60 + now.getSecond()),
FloatLiteral.getDefaultTimeType(Type.TIME));
}
@FEFunction(name = "current_time", argTypes = {}, returnType = "TIME")
public static FloatLiteral currentTime() throws AnalysisException {
return curTime();
}
@FEFunction(name = "utc_timestamp", argTypes = {}, returnType = "DATETIME")
public static DateLiteral utcTimestamp() {
return new DateLiteral(LocalDateTime.now(TimeUtils.getOrSystemTimeZone("+00:00").toZoneId()),
Type.DATETIME);
}
@FEFunction(name = "hour", argTypes = {"DATETIME"}, returnType = "TINYINT")
public static IntLiteral hour(LiteralExpr arg) throws AnalysisException {
if (arg instanceof DateLiteral) {
return new IntLiteral(((DateLiteral) arg).getHour());
}
return null;
}
@FEFunction(name = "minute", argTypes = {"DATETIME"}, returnType = "TINYINT")
public static IntLiteral minute(LiteralExpr arg) throws AnalysisException {
if (arg instanceof DateLiteral) {
return new IntLiteral(((DateLiteral) arg).getMinute());
}
return null;
}
@FEFunction(name = "second", argTypes = {"DATETIME"}, returnType = "TINYINT")
public static IntLiteral second(LiteralExpr arg) throws AnalysisException {
if (arg instanceof DateLiteral) {
return new IntLiteral(((DateLiteral) arg).getSecond());
}
return null;
}
@FEFunction(name = "timestamp", argTypes = {"DATETIME"}, returnType = "DATETIME")
public static DateLiteral timestamp(LiteralExpr arg) throws AnalysisException {
if (arg instanceof DateLiteral) {
return (DateLiteral) arg;
}
return null;
}
/**
------------------------------------------------------------------------------
*/
/**
* Math function
*/
@FEFunction(name = "floor", argTypes = { "DOUBLE"}, returnType = "BIGINT")
public static IntLiteral floor(LiteralExpr expr) throws AnalysisException {
long result = (long) Math.floor(expr.getDoubleValue());
return new IntLiteral(result, Type.BIGINT);
}
/**
------------------------------------------------------------------------------
*/
/**
* Arithmetic function
*/
@FEFunction(name = "add", argTypes = { "TINYINT", "TINYINT" }, returnType = "SMALLINT")
public static IntLiteral addTinyint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.addExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.SMALLINT);
}
@FEFunction(name = "add", argTypes = { "SMALLINT", "SMALLINT" }, returnType = "INT")
public static IntLiteral addSmallint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.addExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.INT);
}
@FEFunction(name = "add", argTypes = { "INT", "INT" }, returnType = "BIGINT")
public static IntLiteral addInt(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.addExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.BIGINT);
}
@FEFunction(name = "add", argTypes = { "BIGINT", "BIGINT" }, returnType = "BIGINT")
public static IntLiteral addBigint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.addExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.BIGINT);
}
@FEFunction(name = "add", argTypes = { "DOUBLE", "DOUBLE" }, returnType = "DOUBLE")
public static FloatLiteral addDouble(LiteralExpr first, LiteralExpr second) throws AnalysisException {
double result = first.getDoubleValue() + second.getDoubleValue();
return new FloatLiteral(result, Type.DOUBLE);
}
@FEFunction(name = "add", argTypes = { "DECIMALV2", "DECIMALV2" }, returnType = "DECIMALV2")
public static DecimalLiteral addDecimalV2(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigDecimal left = new BigDecimal(first.getStringValue());
BigDecimal right = new BigDecimal(second.getStringValue());
BigDecimal result = left.add(right);
return new DecimalLiteral(result);
}
@FEFunction(name = "add", argTypes = { "LARGEINT", "LARGEINT" }, returnType = "LARGEINT")
public static LargeIntLiteral addBigInt(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigInteger left = new BigInteger(first.getStringValue());
BigInteger right = new BigInteger(second.getStringValue());
BigInteger result = left.add(right);
return new LargeIntLiteral(result.toString());
}
@FEFunction(name = "subtract", argTypes = { "TINYINT", "TINYINT" }, returnType = "SMALLINT")
public static IntLiteral subtractTinyint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.subtractExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.SMALLINT);
}
@FEFunction(name = "subtract", argTypes = { "SMALLINT", "SMALLINT" }, returnType = "INT")
public static IntLiteral subtractSmallint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.subtractExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.INT);
}
@FEFunction(name = "subtract", argTypes = { "INT", "INT" }, returnType = "BIGINT")
public static IntLiteral subtractInt(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.subtractExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.BIGINT);
}
@FEFunction(name = "subtract", argTypes = { "BIGINT", "BIGINT" }, returnType = "BIGINT")
public static IntLiteral subtractBigint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.subtractExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.BIGINT);
}
@FEFunction(name = "subtract", argTypes = { "DOUBLE", "DOUBLE" }, returnType = "DOUBLE")
public static FloatLiteral subtractDouble(LiteralExpr first, LiteralExpr second) throws AnalysisException {
double result = first.getDoubleValue() - second.getDoubleValue();
return new FloatLiteral(result, Type.DOUBLE);
}
@FEFunction(name = "subtract", argTypes = { "DECIMALV2", "DECIMALV2" }, returnType = "DECIMALV2")
public static DecimalLiteral subtractDecimalV2(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigDecimal left = new BigDecimal(first.getStringValue());
BigDecimal right = new BigDecimal(second.getStringValue());
BigDecimal result = left.subtract(right);
return new DecimalLiteral(result);
}
@FEFunction(name = "subtract", argTypes = { "LARGEINT", "LARGEINT" }, returnType = "LARGEINT")
public static LargeIntLiteral subtractBigInt(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigInteger left = new BigInteger(first.getStringValue());
BigInteger right = new BigInteger(second.getStringValue());
BigInteger result = left.subtract(right);
return new LargeIntLiteral(result.toString());
}
@FEFunction(name = "multiply", argTypes = { "TINYINT", "TINYINT" }, returnType = "SMALLINT")
public static IntLiteral multiplyTinyint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.multiplyExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.SMALLINT);
}
@FEFunction(name = "multiply", argTypes = { "SMALLINT", "SMALLINT" }, returnType = "INT")
public static IntLiteral multiplySmallint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.multiplyExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.INT);
}
@FEFunction(name = "multiply", argTypes = { "INT", "INT" }, returnType = "BIGINT")
public static IntLiteral multiplyInt(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.multiplyExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.BIGINT);
}
@FEFunction(name = "multiply", argTypes = { "BIGINT", "BIGINT" }, returnType = "BIGINT")
public static IntLiteral multiplyBigint(LiteralExpr first, LiteralExpr second) throws AnalysisException {
long result = Math.multiplyExact(first.getLongValue(), second.getLongValue());
return new IntLiteral(result, Type.BIGINT);
}
@FEFunction(name = "multiply", argTypes = { "DOUBLE", "DOUBLE" }, returnType = "DOUBLE")
public static FloatLiteral multiplyDouble(LiteralExpr first, LiteralExpr second) throws AnalysisException {
double result = first.getDoubleValue() * second.getDoubleValue();
return new FloatLiteral(result, Type.DOUBLE);
}
@FEFunction(name = "multiply", argTypes = { "DECIMALV2", "DECIMALV2" }, returnType = "DECIMALV2")
public static DecimalLiteral multiplyDecimalV2(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigDecimal left = new BigDecimal(first.getStringValue());
BigDecimal right = new BigDecimal(second.getStringValue());
BigDecimal result = left.multiply(right);
return new DecimalLiteral(result);
}
@FEFunction(name = "multiply", argTypes = { "LARGEINT", "LARGEINT" }, returnType = "LARGEINT")
public static LargeIntLiteral multiplyBigInt(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigInteger left = new BigInteger(first.getStringValue());
BigInteger right = new BigInteger(second.getStringValue());
BigInteger result = left.multiply(right);
return new LargeIntLiteral(result.toString());
}
@FEFunction(name = "divide", argTypes = { "DOUBLE", "DOUBLE" }, returnType = "DOUBLE")
public static FloatLiteral divideDouble(LiteralExpr first, LiteralExpr second) throws AnalysisException {
if (second.getDoubleValue() == 0.0) {
return null;
}
double result = first.getDoubleValue() / second.getDoubleValue();
return new FloatLiteral(result, Type.DOUBLE);
}
@FEFunction(name = "divide", argTypes = { "DECIMALV2", "DECIMALV2" }, returnType = "DECIMALV2")
public static DecimalLiteral divideDecimalV2(LiteralExpr first, LiteralExpr second) throws AnalysisException {
BigDecimal left = new BigDecimal(first.getStringValue());
BigDecimal right = new BigDecimal(second.getStringValue());
if (right.compareTo(BigDecimal.ZERO) == 0) {
return null;
}
BigDecimal result = left.divide(right);
return new DecimalLiteral(result);
}
@FEFunction(name = "concat", argTypes = { "VARCHAR"}, returnType = "VARCHAR")
public static StringLiteral concat(StringLiteral... values) throws AnalysisException {
Preconditions.checkArgument(values.length > 0);
final StringBuilder resultBuilder = new StringBuilder();
for (StringLiteral value : values) {
resultBuilder.append(value.getStringValue());
}
return new StringLiteral(resultBuilder.toString());
}
@FEFunction(name = "concat_ws", argTypes = {"VARCHAR", "VARCHAR"}, returnType = "VARCHAR")
public static StringLiteral concat_ws(StringLiteral split, StringLiteral... values) throws AnalysisException {
Preconditions.checkArgument(values.length > 0);
final StringBuilder resultBuilder = new StringBuilder();
for (int i = 0; i < values.length - 1; i++) {
resultBuilder.append(values[i].getStringValue()).append(split.getStringValue());
}
resultBuilder.append(values[values.length - 1].getStringValue());
return new StringLiteral(resultBuilder.toString());
}
@FEFunctionList({
@FEFunction(name = "ifnull", argTypes = {"VARCHAR", "VARCHAR"}, returnType = "VARCHAR"),
@FEFunction(name = "ifnull", argTypes = {"TINYINT", "TINYINT"}, returnType = "TINYINT"),
@FEFunction(name = "ifnull", argTypes = {"INT", "INT"}, returnType = "INT"),
@FEFunction(name = "ifnull", argTypes = {"BIGINT", "BIGINT"}, returnType = "BIGINT"),
@FEFunction(name = "ifnull", argTypes = {"DATETIME", "DATETIME"}, returnType = "DATETIME"),
@FEFunction(name = "ifnull", argTypes = { "DATE", "DATETIME" }, returnType = "DATETIME"),
@FEFunction(name = "ifnull", argTypes = { "DATETIME", "DATE" }, returnType = "DATETIME")
})
public static LiteralExpr ifNull(LiteralExpr first, LiteralExpr second) throws AnalysisException {
return first instanceof NullLiteral ? second : first;
}
// maybe use alias info to reduce redundant code
@FEFunctionList({
@FEFunction(name = "nvl", argTypes = {"VARCHAR", "VARCHAR"}, returnType = "VARCHAR"),
@FEFunction(name = "nvl", argTypes = {"TINYINT", "TINYINT"}, returnType = "TINYINT"),
@FEFunction(name = "nvl", argTypes = {"INT", "INT"}, returnType = "INT"),
@FEFunction(name = "nvl", argTypes = {"BIGINT", "BIGINT"}, returnType = "BIGINT"),
@FEFunction(name = "nvl", argTypes = {"DATETIME", "DATETIME"}, returnType = "DATETIME"),
@FEFunction(name = "nvl", argTypes = { "DATE", "DATETIME" }, returnType = "DATETIME"),
@FEFunction(name = "nvl", argTypes = { "DATETIME", "DATE" }, returnType = "DATETIME")
})
public static LiteralExpr nvl(LiteralExpr first, LiteralExpr second) throws AnalysisException {
return first instanceof NullLiteral ? second : first;
}
@FEFunctionList({
@FEFunction(name = "array", argTypes = {"BOOLEAN"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"TINYINT"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"SMALLINT"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"INT"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"BIGINT"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"LARGEINT"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"DATETIME"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"DATE"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"FLOAT"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"DOUBLE"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"DECIMALV2"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"VARCHAR"}, returnType = "ARRAY"),
@FEFunction(name = "array", argTypes = {"STRING"}, returnType = "ARRAY")
})
public static ArrayLiteral array(LiteralExpr... exprs) throws AnalysisException {
return new ArrayLiteral(exprs);
}
}