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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
  • ARRAY
  • AS
  • ASC

B​

  • BETWEEN
  • BIGINT
  • BITMAP
  • BOTH
  • BY

C​

  • CASE
  • CHAR
  • CHARACTER
  • CHECK
  • COLLATE
  • COLUMN
  • COMPACTION (v3.1 and later)
  • CONVERT
  • CREATE
  • CROSS
  • CUBE
  • CURRENT_DATE
  • CURRENT_TIME
  • CURRENT_TIMESTAMP
  • CURRENT_USER
  • CURRENT_ROLE (v3.0 and later)

D​

  • DATABASE
  • DATABASES
  • DECIMAL
  • DECIMALV2
  • DECIMAL32
  • DECIMAL64
  • DECIMAL128
  • DEFAULT
  • DELETE
  • DENSE_RANK
  • DESC
  • DESCRIBE
  • DISTINCT
  • DOUBLE
  • DROP
  • DUAL
  • DEFERRED (v3.0 and later)

E​

  • ELSE
  • EXCEPT
  • EXISTS
  • EXPLAIN

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
  • IMMEDIATE (v3.0 and later)

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
  • 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
  • SET
  • SET_VAR
  • SHOW
  • SMALLINT
  • SYSTEM

T​

  • TABLE
  • TERMINATED
  • TEXT (v3.1 and later)
  • THEN
  • TINYINT
  • TO
  • TRUE

U​

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

V​

  • VALUES
  • VARCHAR

W​

  • WHEN
  • WHERE
  • WITH