feat : Dialects MySQL string fuction

[vicheanath]

Added: dailects mysql string function #160

• ASCII() Return numeric value of left-most character
• BIN() Return a string containing binary representation of a number
• BIT_LENGTH() Return length of argument in bits
• CHAR() Return the character for each integer passed
• CHAR_LENGTH() Return number of characters in argument
• CHARACTER_LENGTH() Synonym for CHAR_LENGTH()
• CONCAT() Return concatenated string
• CONCAT_WS() Return concatenate with separator
• ELT() Return string at index number
• EXPORT_SET() Return a string such that for every bit set in the value bits, you get an on string and for every unset bit, you get an off string
• FIELD() Index (position) of first argument in subsequent arguments
• FIND_IN_SET() Index (position) of first argument within second argument
• FORMAT() Return a number formatted to specified number of decimal places
• FROM_BASE64() Decode base64 encoded string and return result
• HEX() Hexadecimal representation of decimal or string value
• INSERT() Insert substring at specified position up to specified number of characters
• INSTR() Return the index of the first occurrence of substring
• LCASE() Synonym for LOWER()
• LEFT() Return the leftmost number of characters as specified
• LENGTH() Return the length of a string in bytes
• LIKE Simple pattern matching
• LOAD_FILE() Load the named file
• LOCATE() Return the position of the first occurrence of substring
• LOWER() Return the argument in lowercase
• LPAD() Return the string argument, left-padded with the specified string
• LTRIM() Remove leading spaces
• MAKE_SET() Return a set of comma-separated strings that have the corresponding bit in bits set
• MATCH() Perform full-text search
• MID() Return a substring starting from the specified position
• NOT LIKE Negation of simple pattern matching
• NOT REGEXP Negation of REGEXP
• OCT() Return a string containing octal representation of a number
• OCTET_LENGTH() Synonym for LENGTH()
• ORD() Return character code for leftmost character of the argument
• POSITION() Synonym for LOCATE()
• QUOTE() Escape the argument for use in an SQL statement
• REGEXP Whether string matches regular expression
• REGEXP_INSTR() Starting index of substring matching regular expression
• REGEXP_LIKE() Whether string matches regular expression
• REGEXP_REPLACE() Replace substrings matching regular expression
• REGEXP_SUBSTR() Return substring matching regular expression
• REPEAT() Repeat a string the specified number of times
• REPLACE() Replace occurrences of a specified string
• REVERSE() Reverse the characters in a string
• RIGHT() Return the specified rightmost number of characters
• RLIKE Whether string matches regular expression
• RPAD() Append string the specified number of times
• RTRIM() Remove trailing spaces
• SOUNDEX() Return a soundex string
• SOUNDS LIKE Compare sounds
• SPACE() Return a string of the specified number of spaces
• STRCMP() Compare two strings
• SUBSTR() Return the substring as specified
• SUBSTRING() Return the substring as specified
• SUBSTRING_INDEX() Return a substring from a string before the specified number of occurrences of the delimiter
• TO_BASE64() Return the argument converted to a base-64 string
• TRIM() Remove leading and trailing spaces
• UCASE() Synonym for UPPER()
• UNHEX() Return a string containing hex representation of a number
• UPPER() Convert to uppercase
• WEIGHT_STRING() Return the weight string for a string

[vicheanath]

I have checked and tested it all check function is already in PR

[vicheanath]

for CHAR() i think i have problem about dialects script it can't extract this [CHAR(N,... [USING charset_name])].

[invisal]

for CHAR() i think i have problem about dialects script it can't extract this [CHAR(N,... [USING charset_name])].

Yes. It is okay. You can fill those information first. I will check about the dialects problem that conflict with some of doc.

[invisal]

Let me know if it is all ready and I will do review and merge.

[vicheanath]

for some expressions that are not a function, it will not pop up document tools tip:

It should be like this

that is issue i will create only document, and we fixed them later