AbbrDayOfMonth: Get the abbreviation of month of day.

CalcToSeconds: CalcToDays is used to return a day number (the number of days since year 0).

DateFSP gets fsp from date string.

DateStringToDate can still speed up if vec is const.

TODO: I will support template soon.

DateTimeDiff returns t2 - t1 where t1 and t2 are datetime expressions.

DeduceNotNullable helps optimization sometimes.

FormatIntByWidth: Formatintwidthn is used to format ints with width parameter n.

TODO: may support soon.

Too confused.

MoTableColMax return the max value of the column.

MoTableColMax return the max value of the column.

MoTableRows returns an estimated row number of a table.

MoTableSize returns an estimated size of a table.

RunFunctionDirectly runs a function directly without any protections.

ABS.

ACOS.

Add a fault point.

ADDDATE.

ADDTIME.

The number of days in the year 0000 AD.

Seconds in 0000 AD.

AES_DECRYPT.

AES_ENCRYPT.

ALL.

AND.

ANY.

ANY_VALUE.

APPROX_COUNT_DISTINCT, special aggregate.

ARRAY_AGG.

ARRAY_APPEND.

ARRAY_CAT.

ARRAY_CONTAINS.

ARRAY_POSITION.

ARRAY_SIZE.

ASCII.

ASIN.

ASSERT.

ATAN.

ATAN2.

AVG.

BASE64_DECODE.

BASE64_ENCODE.

BETWEEN.

BIN.

All function IDs.

binary arithmetic operator.

binary logical operator.

BIT_AND.

BIT_LENGTH.

BIT_NOT.

BIT_OR.

BIT_XOR.

BITAGG_AND.

BITAGG_OR.

BOOLAGG_AND.

BOOLAGG_OR.

All function IDs.

CASE.

case when expression.

CAST.

cast expression.

CEIL.

All function IDs.

CHR.

COALESCE.

All function IDs.

comparison operator.

||.

All function IDs.

All function IDs.

CONTAINS.

CORR.

COS.

COT.

COUNT.

COUNT_IF.

COVAR_POP.

COVAR_SAMPLE.

CUME_DIST.

All function IDs.

All function IDs.

CURRENT_DATE.

All function IDs.

All function IDs.

All function IDs.

CURRENT_TIMESTAMP.

All function IDs.

All function IDs.

All function IDs.

information functionsReference to : https://dev.mysql.com/doc/refman/8.0/en/information-functions.html.

DATE.

DATE_ADD.

DATE_FORMAT.

DATE_FROM_PARTS.

date expression,interval expression.

DATE_PART.

DATE_SUB.

DATEADD.

DATEDIFF.

DAY.

DAYOFYEAR.

DENSE_RANK.

All function IDs.

/.

All function IDs.

All function IDs.

ENDSWITH.

=.

EXISTS.

query predicate,such as exist,all,any.

EXP.

EXTRACT.

extract function,such as extract(MONTH/DAY/HOUR/MINUTE/SECOND FROM p).

FIELD.

All function IDs.

FIRST_VALUE.

FLOOR.

FORMAT.

All function IDs.

All function IDs.

FUNCTION_END_NUMBER is not a function, just a flag to record the max number of function.

All function IDs.

>=.

>.

GREATEST.

All function IDs.

GROUPING_ID.

HASH.

HASH_AGG.

HEX.

HEX_DECODE.

HEX_ENCODE.

HOUR.

All function IDs.

IFF.

IFNULL.

ILIKE.

ILIKE_ALL.

ILIKE_ANY.

IN.

query 'in' predicate.

All function IDs.

Div.

All function IDs.

All function IDs.

All function IDs.

All function IDs.

All function IDs.

All function IDs.

All function IDs.

INTERVAL.

IS.

IS expression.

IS NOT operator.

ISEMPTY.

ISFALSE.

ISNOT.

ISNOTTRUE.

ISNOTNULL.

ISNOTTRUE.

ISNOTUNKNOWN.

ISNULL.

ISTRUE.

ISUNKNOWN.

JSON_EXTRACT.

JSON_QUOTE.

JSON_UNQUOTE.

LAG.

All function IDs.

All function IDs.

All function IDs.

LAST_VALUE.

All function IDs.

LEAD.

LEAST.

LEFT.

LENGTH.

All function IDs.

<=.

<.

LIKE.

LIKE_ALL.

LIKE_ANY.

LN.

LOAD_FILE.

LOG.

LOWER.

LPAD.

LTRIM.

MAX.

MEDIAN.

MIN.

-.

MINUTE.

MO_CTL is used to check some internal status, and issue some ctl commands to the service.

All function IDs.

All function IDs.

parse date from string, like __mo_filepath.

Dump memory usage.

parse type/onUpdate/default []byte to visible string.

table column max value.

table column min value.

table rows.

table size.

%.

MODE.

All function IDs.

*.

Sequence function.

noparameter function.

NORMAL.

NOT.

<>.

NOT_IN.

NOT_IN_ROWS.

NOT_REG_MATCH.

NTH_VALUE.

NTILE.

NULLIF.

All function IDs.

&.

|.

<<.

>>.

^.

OR.

PERCENT_RANK.

PI.

+.

POSITION.

position function, such as POSITION(substr IN str).

POW.

RADIAN.

RANDOM.

RANK.

REG_MATHCH.

REGEXP.

REGEXP_INSTR.

REGEXP_LIKE.

REGEXP_REPLACE.

REGEXP_SUBSTR.

Remove.

REPEAT.

REPLACE.

All function IDs.

RIGHT.

All function IDs.

ROUND.

All function IDs.

ROW_NUMBER.

RPAD.

RTRIM.

SECOND.

24-hour seconds.

All function IDs.

All function IDs.

SIGN.

SIN.

SINH.

sleep for a while.

All function IDs.

SPLIT.

SPLIT_PART.

standard function.

STARTCOUNT.

STARTSWITH.

STDDEV_POP.

STDDEV_SAMPLE.

All function IDs.

SUBSTR.

SUBSTRING.

SUBSTRING_INDEX.

SUM.

TAN.

TIME.

TIMEDIFF.

TIMESTAMP.

TIMESTAMPDIFF.

All function IDs.

All function IDs.

TO_INTERVAL.

All function IDs.

TRANSLATE.

Trigger.

TRIM.

unary arithmetic operator.

unary logical operator.

UNARY_MINUS -.

UNARY_PLUS +.

UNARY_TILDE ~.

UNIFORM.

All function IDs.

UPPER.

All function IDs.

All function IDs.

All function IDs.

be used: insert into t1 values(1,1) on duplicate key update a=values(a)+a+1.

VAR_POP.

VAR_SAMPLE.

All function IDs.

WEEK.

All function IDs.

XOR.

YEAR.

AbbrevWeekdayName lists Abbreviation of week names, which are used int builtin function 'date_format'.

19.

20.

MonthNames lists names of months, which are used in builtin function `date_format`.

ScaleTable is a lookup array for digits.

WeekdayNames lists names of weekdays, which are used in builtin function `date_format`.

FuncNew stores all information about a function.

GeneralTime is the internal struct type for Time.

The month represents one month of the year (January=1,...).