Keywords

This topic describes non-reserved keywords and reserved keywords. It provides a list of reserved keywords in StarRocks.

Introduction

Keywords in SQL statements, such as CREATE and DROP, have special meanings when parsed by StarRocks. Keywords are classified into non-reserved keywords and reserved keywords.

• Non-reserved keywords can be directly used as identifiers without special treatment, such as table names and column names. For example, DB is a non-reserved keyword. You can create a database named DB.

  CREATE DATABASE DB;
  Query OK, 0 rows affected (0.00 sec)

• Reserved keywords can be used as identifiers only after special treatment. For example, LIKE is a reserved keyword. If you want to use it to identify a database, enclose it in a pair of backticks (`).

  CREATE DATABASE `LIKE`;
  Query OK, 0 rows affected (0.01 sec)

  If it is not enclosed in backticks, an error is returned:

  CREATE DATABASE LIKE;
  ERROR 1064 (HY000): Getting syntax error at line 1, column 16. Detail message: Unexpected input 'like', the most similar input is {a legal identifier}.

Reserved keywords

Following are StarRocks reserved keywords arranged in alphabetical order. You must enclose them in a pair of backticks (`) if you want to use them as identifiers. The reserved keywords may vary with StarRocks versions.

A

• ADD
• ALL
• ALTER
• ANALYZE
• AND
• ANTI
• ARRAY
• AS
• ASC
• AUTHENTICATION

B

• BETWEEN
• BIGINT
• BITMAP
• BOTH
• BY

C

• CANCEL
• CASE
• CHAR
• CHARACTER
• CHECK
• COLLATE
• COLUMN
• CONVERT
• CREATE
• CROSS
• CUBE
• CURRENT_DATE
• CURRENT_TIME
• CURRENT_TIMESTAMP
• CURRENT_USER

D

• DATABASE
• DATABASES
• DECIMAL
• DECIMALV2
• DECIMAL32
• DECIMAL64
• DECIMAL128
• DEFAULT
• DELETE
• DENSE_RANK
• DESC
• DESCRIBE
• DISTINCT
• DISTRIBUTED
• DOUBLE
• DROP
• DUAL

E

• ELSE
• EXCEPT
• EXISTS
• EXPLAIN
• EXPORT

F

• FALSE
• FIRST_VALUE
• FLOAT
• FOR
• FORCE
• FROM
• FULL
• FUNCTION

G

• GRANT
• GROUP
• GROUPS
• GROUPING
• GROUPING_ID

H

• HAVING
• HLL
• HOST

I

• IF
• IGNORE
• IN
• INDEX
• INFILE
• INNER
• INSERT
• INT
• INTEGER
• INTERSECT
• INTO
• IS

J

• JOIN
• JSON

K

• KEY
• KEYS
• KILL

L

• LAG
• LARGEINT
• LAST_VALUE
• LATERAL
• LEAD
• LEFT
• LIKE
• LIMIT
• LOAD
• LOCALTIME
• LOCALTIMESTAMP

M

• MAXVALUE
• MINUS
• MOD

N

• NTILE
• NODES
• NOT
• NULL

O

• ON
• OR
• ORDER
• OUTER
• OUTFILE
• OVER

P

• PARTITION
• PERCENTILE
• PRIMARY
• PROCEDURE

Q

• QUALIFY

R

• RANGE
• RANK
• READ
• REGEXP
• RELEASE
• RENAME
• REPLACE
• REVOKE
• RIGHT
• RLIKE
• ROW
• ROWS
• ROW_NUMBER

S

• SCHEMA
• SCHEMAS
• SELECT
• SEMI
• SET
• SET_VAR
• SHOW
• SMALLINT
• SYSTEM
• SWAP

T

• TABLE
• TERMINATED
• THEN
• TINYINT
• TO
• TRUE

U

• UNION
• UNIQUE
• UNSIGNED
• UPDATE
• USE
• USING

V

• VALUES
• VARCHAR

W

• WHEN
• WHERE
• WITH