maropu commented on a change in pull request #23259: [SPARK-26215][SQL] Define
reserved keywords based on the ANSI SQL standard
URL: https://github.com/apache/spark/pull/23259#discussion_r252272416
##########
File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
##########
@@ -744,40 +750,36 @@ number
| MINUS? BIGDECIMAL_LITERAL #bigDecimalLiteral
;
+reserved
+ // A list of reserved keywords in SparkSQL. These keywords are reserved in
all the ANSI SQL standards
+ // (SQL-92, SQL-99, SQL-2003, SQL-2008, SQL-2011, and SQL-2016) and
PostgreSQL.
+ : ALL | AND | ANY | AS | AUTHORIZATION | BOTH | CASE | CAST | CHECK |
COLLATE | COLUMN | CONSTRAINT | CREATE
+ | CROSS | CURRENT_DATE | CURRENT_TIME | CURRENT_TIMESTAMP | CURRENT_USER |
DISTINCT | ELSE | END | EXCEPT
+ | FALSE | FETCH | FOR | FOREIGN | FROM | FULL | GRANT | GROUP | HAVING |
IN | INNER | INTERSECT | INTO | IS
+ | JOIN | LEADING | LEFT | NATURAL | NOT | NULL | ON | ONLY | OR | ORDER |
OUTER | OVERLAPS | PRIMARY
+ | REFERENCES | RIGHT | SELECT | SESSION_USER | SOME | TABLE | THEN | TO |
TRAILING | UNION | UNIQUE | USER
+ | USING | VARYING | WHEN | WHERE | WITH
+ ;
+
nonReserved
- : SHOW | TABLES | COLUMNS | COLUMN | PARTITIONS | FUNCTIONS | DATABASES
- | ADD
- | OVER | PARTITION | RANGE | ROWS | PRECEDING | FOLLOWING | CURRENT | ROW
| LAST | FIRST | AFTER
- | MAP | ARRAY | STRUCT
- | PIVOT | LATERAL | WINDOW | REDUCE | TRANSFORM | SERDE | SERDEPROPERTIES
| RECORDREADER
- | DELIMITED | FIELDS | TERMINATED | COLLECTION | ITEMS | KEYS | ESCAPED |
LINES | SEPARATED
- | EXTENDED | REFRESH | CLEAR | CACHE | UNCACHE | LAZY | GLOBAL | TEMPORARY
| OPTIONS
- | GROUPING | CUBE | ROLLUP
- | EXPLAIN | FORMAT | LOGICAL | FORMATTED | CODEGEN | COST
- | TABLESAMPLE | USE | TO | BUCKET | PERCENTLIT | OUT | OF
- | SET | RESET
- | VIEW | REPLACE
- | IF
- | POSITION
- | EXTRACT
- | NO | DATA
- | START | TRANSACTION | COMMIT | ROLLBACK | IGNORE
- | SORT | CLUSTER | DISTRIBUTE | UNSET | TBLPROPERTIES | SKEWED | STORED |
DIRECTORIES | LOCATION
- | EXCHANGE | ARCHIVE | UNARCHIVE | FILEFORMAT | TOUCH | COMPACT |
CONCATENATE | CHANGE
- | CASCADE | RESTRICT | BUCKETS | CLUSTERED | SORTED | PURGE | INPUTFORMAT
| OUTPUTFORMAT
- | DBPROPERTIES | DFS | TRUNCATE | COMPUTE | LIST
- | STATISTICS | ANALYZE | PARTITIONED | EXTERNAL | DEFINED | RECORDWRITER
- | REVOKE | GRANT | LOCK | UNLOCK | MSCK | REPAIR | RECOVER | EXPORT |
IMPORT | LOAD | VALUES | COMMENT | ROLE
- | ROLES | COMPACTIONS | PRINCIPALS | TRANSACTIONS | INDEX | INDEXES |
LOCKS | OPTION | LOCAL | INPATH
- | ASC | DESC | LIMIT | RENAME | SETS
- | AT | NULLS | OVERWRITE | ALL | ANY | ALTER | AS | BETWEEN | BY | CREATE
| DELETE
- | DESCRIBE | DROP | EXISTS | FALSE | FOR | GROUP | IN | INSERT | INTO | IS
|LIKE
- | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
- | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL |
MACRO | OR | STRATIFY | THEN
- | UNBOUNDED | WHEN
- | DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
- | DIRECTORY
- | BOTH | LEADING | TRAILING
+ : ADD | AFTER | ALL | ALTER | ANALYZE | AND | ANY | ARCHIVE | ARRAY | AS |
ASC | AT | BETWEEN | BOTH
Review comment:
To compare to the `reserved` entries easily, I just sorted the `nonReserved`
ones in an alphabetical order.
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