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firebird-mirror/doc/sql.extensions/README.keywords
2005-07-05 08:07:38 +00:00

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----------------------------------------------------
SQL keywords introduced in different server versions
----------------------------------------------------
An asterisk (*) mark shows that a keyword doesn't exist in the SQL specification
and hence should be considered a non-standard language extention.
Firebird 1.0:
Added as reserved words:
CURRENT_USER
CURRENT_ROLE
BREAK *
DESCRIPTOR
FIRST
RECREATE *
SKIP *
SUBSTRING
Firebird 1.5:
Added as reserved words:
CURRENT_CONNECTION *
CURRENT_TRANSACTION *
BIGINT
CASE
RELEASE
ROW_COUNT
SAVEPOINT
Added as non-reserved words:
COALESCE
DELETING *
INSERTING *
LAST
LEAVE
LOCK *
NULLIF
NULLS
STATEMENT
UPDATING *
USING
Moved from reserved words to non-reserved:
BREAK *
DESCRIPTOR
FIRST
SKIP *
SUBSTRING
Firebird 2.0:
Added as reserved words:
BIT_LENGTH
BOTH
CHAR_LENGTH
CHARACTER_LENGTH
CLOSE
CROSS
FETCH
LEADING
LOWER
OCTET_LENGTH
OPEN
ROWS
TRAILING
TRIM
Moved from non-reserved words to reserved:
USING
Added as non-reserved words:
BACKUP *
BLOCK *
COLLATION
COMMENT *
DIFFERENCE *
IIF *
NEXT
SCALAR_ARRAY *
SEQUENCE
RESTART
RETURNING *
Moved from reserved words to non-reserved:
ACTION
CASCADE
FREE_IT *
RESTRICT
ROLE
TYPE
WEEKDAY *
YEARDAY *
Removed reserved words:
BASENAME *
CACHE *
CHECK_POINT_LEN *
GROUP_COMMIT_WAIT *
LOGFILE *
LOG_BUF_SIZE *
NUM_LOG_BUFS *
RAW_PARTITIONS *