更新时间：2022-02-22 GMT+08:00
保留关键字
Flink SQL将一些字符串组合保留为关键字以备将来使用。 如果要使用以下字符串作为字段名称，请确保使用反引号（例如`value`，`count`）。
A
- A
- ABS
- ABSOLUTE
- ACTION
- ADA
- ADD
- ADMIN
- AFTER
- AK
- ALL
- ALLOCATE
- ALLOW
- ALTER
- ALWAYS
- AND
- ANY
- APPEND
- APP_ID
- ARE
- ARRAY
- ARRAY_BRACKET
- AS
- ASC
- ASENSITIVE
- ASSERTION
- ASSIGNMENT
- ASYMMETRIC
- AT
- AT_LEAST_ONCE
- ATOMIC
- ATTRIBUTE
- ATTRIBUTES
- AUTHORIZATION
- AVG
- AVRO_CONFIG
- AVRO_DATA
- AVRO_SCHEMA
B
- BATCH_INSERT_DATA_NUM
- BEFORE
- BEGIN
- BERNOULLI
- BETWEEN
- BIGINT
- BINARY
- BIT
- BLOB
- BOOL
- BOOLEAN
- BOTH
- BREADTH
- BUCKET
- BY
C
- C
- CACHE_MAX_NUM
- CACHE_TIME
- CALL
- CALLED
- CARBON_PROPERTIES
- CARDINALITY
- CASCADE
- CASCADED
- CASE
- CAST
- CATALOG
- CATALOG_NAME
- CEIL
- CEILING
- CENTURY
- CHAIN
- CHANNEL
- CHAR
- CHARACTER
- CHARACTERISTICTS
- CHARACTERS
- CHARACTER_LENGTH
- CHARACTER_SET_CATALOG
- CHARACTER_SET_NAME
- CHARACTER_SET_SCHEMA
- CHAR_LENGTH
- CHECK
- CHECKPOINT_APP_NAME
- CHECKPOINT_INTERVAL
- CHECKPOINTINTERVAL
- CLASS_ORIGIN
- CLOB
- CLOSE
- CLUSTER_ADDRESS
- CLUSTER_ID
- CLUSTER_NAME
- COALESCE
- COBOL
- COLLATE
- COLLATION
- COLLATION_CATALOG
- COLLATION_NAME
- COLLATION_SCHEMA
- COLLECT
- COLUMN
- COLUMN_NAME
- COLUMN_NAME_MAP
- COMMAND_FUNCTION
- COMMAND_FUNCTION_CODE
- COMMIT
- COMMITTED
- CONDITION
- CONDITION_NUMBER
- CONFIGURATION
- CONFLUENT_CERTIFICATE_NAME
- CONFLUENT_PROPERTIES
- CONFLUENT_SCHEMA_FIELD
- CONFLUENT_URL
- CONNECT
- CONNECTION_NAME
- CONSTRAINT
- CONSTRAINTS
- CONSTRAINT_CATALOG
- CONSTRAINT_NAME
- CONSTRAINT_SCHEMA
- CONSTRUCTOR
- CONTAINS
- CONTINUE
- CONVERT
- CORR
- CORRESPONDING
- COUNT
- COVAR_POP
- COVAR_SAMP
- CREATE
- CREATE_IF_NOT_EXIST
- CROSS
- CUBE
- CUME_DIST
- CURRENT
- CURRENT_CATALOG
- CURRENT_DATE
- CURRENT_DEFAULT_TRANSFORM_GROUP
- CURRENT_PATH
- CURRENT_ROLE
- CURRENT_SCHEMA
- CURRENT_TIMESTAMP
- CURRENT_TRANSFORM_GROUP_FOR_TYPE
- CURRENT_USER
- CURSOR
- CURSOR_NAME
- CYCLE
D
- DATE
- DATABASE
- DATE
- DATETIME_INTERVAL_CODE
- DATETIME_INTERVAL_PRECISION
- DAY
- DB_COLUMNS
- DB_URL
- DB_OBS_SERVER
- DB_TYPE
- DEALLOCATE
- DEC
- DECADE
- DECIMAL
- DECLARE
- DEFAULTS
- DEFERRABLE
- DEFERRED
- DEFINER
- DEGREE
- DELETE
- DELETE_OBS_TEMP_FILE
- DENSE_RANK
- DEPTH
- DEREF
- DERIVED
- DESC
- DESCRIBE
- DESCRIPTION
- DESCRIPTOR
- DETERMINISTIC
- DIAGNOSTICS
- DISALLOW
- DISCONNECT
- DIS_NOTICE_CHANNEL
- DISPATCH
- DISTINCT
- DOMAIN
- DOUBLE
- DOW
- DOY
- DRIVER
- DROP
- DUMP_INTERVAL
- DYNAMIC
- DYNAMIC_FUNCTION
- DYNAMIC_FUNCTION_CODE
E
- EACH
- ELEMENT
- ELSE
- EMAIL_KEY
- ENABLECHECKPOINT
- ENABLE_CHECKPOINT
- ENABLE_OUTPUT_NULL
- ENCODE
- ENCODE_CLASS_NAME
- ENCODE_CLASS_PARAMETER
- ENCODED_DATA
- END
- ENDPOINT
- END_EXEC
- EPOCH
- EQUALS
- ESCAPE
- ES_FIELDS
- ES_INDEX
- ES_TYPE
- ESTIMATEMEM
- ESTIMATEPARALLELISM
- EXACTLY_ONCE
- EXCEPT
- EXCEPTION
- EXCLUDE
- EXCLUDING
- EXEC
- EXECUTE
- EXISTS
- EXP
- EXPLAIN
- EXTEND
- EXTERNAL
- EXTRACT
- EVERY
F
- FALSE
- FETCH
- FIELD_DELIMITER
- FIELD_NAMES
- FILE_PREFIX
- FILTER
- FINAL
- FIRST
- FIRST_VALUE
- FLOAT
- FLOOR
- FOLLOWING
- FOR
- FUNCTION
- FOREIGN
- FORTRAN
- FOUND
- FRAC_SECOND
- FREE
- FROM
- FULL
- FUSION
G
- G
- GENERAL
- GENERATED
- GET
- GLOBAL
- GO
- GOTO
- GRANT
- GRANTED
- GROUP
- GROUPING
- GW_URL
H
- HASH_KEY_COLUMN
- HAVING
- HIERARCHY
- HOLD
- HOUR
- HTTPS_PORT
I
- IDENTITY
- ILLEGAL_DATA_TABLE
- IMMEDIATE
- IMPLEMENTATION
- IMPORT
- IN
- INCLUDING
- INCREMENT
- INDICATOR
- INITIALLY
- INNER
- INOUT
- INPUT
- INSENSITIVE
- INSERT
- INSTANCE
- INSTANTIABLE
- INT
- INTEGER
- INTERSECT
- INTERSECTION
- INTERVAL
- INTO
- INVOKER
- IN_WITH_SCHEMA
- IS
- ISOLATION
J
- JAVA
- JOIN
- JSON_CONFIG
- JSON_SCHEMA
K
- K
- KAFKA_BOOTSTRAP_SERVERS
- KAFKA_CERTIFICATE_NAME
- KAFKA_GROUP_ID
- KAFKA_PROPERTIES
- KAFKA_PROPERTIES_DELIMITER
- KAFKA_TOPIC
- KEY
- KEY_COLUMN
- KEY_MEMBER
- KEY_TYPE
- KEY_VALUE
- KRB_AUTH
L
- LABEL
- LANGUAGE
- LARGE
- LAST
- LAST_VALUE
- LATERAL
- LEADING
- LEFT
- LENGTH
- LEVEL
- LIBRARY
- LIKE
- LIMIT
- LONG
M
- M
- MAP
- MATCH
- MATCHED
- MATCHING_COLUMNS
- MATCHING_REGEX
- MAX
- MAXALLOWEDCPU
- MAXALLOWEDMEM
- MAXALLOWEDPARALLELISM
- MAX_DUMP_FILE_NUM
- MAX_RECORD_NUM_CACHE
- MAX_RECORD_NUM_PER_FILE
- MAXVALUE
- MEMBER
- MERGE
- MESSAGE_COLUMN
- MESSAGE_LENGTH
- MESSAGE_OCTET_LENGTH
- MESSAGE_SUBJECT
- MESSAGE_TEXT
- METHOD
- MICROSECOND
- MILLENNIUM
- MIN
- MINUTE
- MINVALUE
- MOD
- MODIFIES
- MODULE
- MONTH
- MORE
- MS
- MULTISET
- MUMPS
N
- NAME
- NAMES
- NATIONAL
- NATURAL
- NCHAR
- NCLOB
- NESTING
- NEW
- NEXT
- NO
- NONE
- NORMALIZE
- NORMALIZED
- NOT
- NULL
- NULLABLE
- NULLIF
- NULLS
- NUMBER
- NUMERIC
O
- OBJECT
- OBJECT_NAME
- OBS_DIR
- OCTETS
- OCTET_LENGTH
- OF
- OFFSET
- OLD
- ON
- ONLY
- OPEN
- OPERATION_FIELD
- OPTION
- OPTIONS
- OR
- ORDER
- ORDERING
- ORDINALITY
- OTHERS
- OUT
- OUTER
- OUTPUT
- OVER
- OVERLAPS
- OVERLAY
- OVERRIDING
P
- PAD
- PARALLELISM
- PARAMETER
- PARAMETER_MODE
- PARAMETER_NAME
- PARAMETER_ORDINAL_POSITION
- PARAMETER_SPECIFIC_CATALOG
- PARAMETER_SPECIFIC_NAME
- PARAMETER_SPECIFIC_SCHEMA
- PARTIAL
- PARTITION
- PARTITION_COUNT
- PARTITION_KEY
- PARTITION_RANGE
- PASCAL
- PASSTHROUGH
- PASSWORD
- PATH
- PERCENTILE_CONT
- PERCENTILE_DISC
- PERCENT_RANK
- PERSIST_SCHEMA
- PIPELINE_ID
- PLACING
- PLAN
- PLI
- POSITION
- POWER
- PRECEDING
- PRECISION
- PREPARE
- PRESERVE
- PRIMARY
- PRIMARY_KEY
- PRIOR
- PRIVILEGES
- PROCEDURE
- PROCTIME
- PROJECT_ID
- PUBLIC
Q
- QUARTER
- QUOTE
R
- RANGE
- RANK
- READ
- READS
- READ_ONCE
- REAL
- RECURSIVE
- REF
- REFERENCES
- REFERENCING
- REGION
- REGR_AVGX
- REGR_AVGY
- REGR_COUNT
- REGR_INTERCEPT
- REGR_R2
- REGR_SLOPE
- REGR_SXX
- REGR_SXY
- REGR_SYY
- RELATIVE
- RELEASE
- REPEATABLE
- RESET
- RESTART
- RESTRICT
- RESULT
- RETURN
- RETURNED_CARDINALITY
- RETURNED_LENGTH
- RETURNED_OCTET_LENGTH
- RETURNED_SQLSTATE
- RETURNS
- REVOKE
- RIGHT
- ROLE
- ROLLBACK
- ROLLING_INTERVAL
- ROLLING_SIZE
- ROLLUP
- ROUTINE
- ROUTINE_CATALOG
- ROUTINE_NAME
- ROUTINE_SCHEMA
- ROW
- ROW_COUNT
- ROW_DELIMITER
- ROW_NUMBER
- ROWS
- ROWTIME
S
- SAVEPOINT
- SCALE
- SCHEMA
- SCHEMA_CASE_SENSITIVE
- SCHEMA_NAME
- SCOPE
- SCOPE_CATALOGS
- SCOPE_NAME
- SCOPE_SCHEMA
- SCROLL
- SEARCH
- SECOND
- SECTION
- SECURITY
- SELECT
- SELF
- SENSITIVE
- SEQUENCE
- SERIALIZABLE
- SERVER
- SERVER_NAME
- SESSION
- SESSION_USER
- SET
- SETS
- SIMILAR
- SIMPLE
- SINK
- SIZE
- SK
- SMALLINT
- SOME
- SOURCE
- SPACE
- SPECIFIC
- SPECIFICTYPE
- SPECIFIC_NAME
- SQL
- SQLEXCEPTION
- SQLSTATE
- SQLWARNING
- SQL_TSI_DAY
- SQL_TSI_FRAC_SECOND
- SQL_TSI_HOUR
- SQL_TSI_MICROSECOND
- SQL_TSI_MINUTE
- SQL_TSI_MONTH
- SQL_TSI_QUARTER
- SQL_TSI_SECOND
- SQL_TSI_WEEK
- SQL_TSI_YEAR
- SQRT
- START
- START_TIME
- STATE
- STATEMENT
- STATIC
- STDDEV_POP
- STDDEV_SAMP
- STREAM
- STRING
- STRUCTURE
- STYLE
- SUBCLASS_ORIGIN
- SUBMULTISET
- SUBSTITUTE
- SUBSTRING
- SUM
- SYMMETRIC
- SYSTEM
- SYSTEM_USER
T
- TABLE
- TABLESAMPLE
- TABLE_COLUMNS
- TABLE_NAME
- TABLE_NAME_MAP
- TEMP
- TEMPORARY
- THEN
- TIES
- TIME
- TIMESTAMP
- TIMESTAMPADD
- TIMESTAMPDIFF
- TIMEZONE_HOUR
- TIMEZONE_MINUTE
- TINYINT
- TO
- TOP_LEVEL_COUNT
- TOPIC
- TOPIC_URN
- TRAILING
- TRANSACTION
- TRANSACTIONAL_TABLE
- TRANSACTIONS_ACTIVE
- TRANSACTIONS_COMMITTED
- TRANSACTIONS_ROLLED_BACK
- TRANSFORM
- TRANSFORMS
- TRANSLATE
- TRANSLATION
- TRANX_ID
- TREAT
- TRIGGER
- TRIGGER_CATALOG
- TRIGGER_NAME
- TRIGGER_SCHEMA
- TRIM
- TRUE
- TSDB_LINK_ADDRESS
- TSDB_METRICS
- TSDB_TIMESTAMPS
- TSDB_TAGS
- TSDB_VALUES
- TYPE
- TYPE_CLASS_NAME
- TYPE_CLASS_PARAMETER
U
- UESCAPE
- UNBOUNDED
- UNCOMMITTED
- UNDER
- UNION
- UNIQUE
- UNKNOWN
- UNNAMED
- UNNEST
- UPDATE
- UPPER
- UPSERT
- URN_COLUMN
- USAGE
- USER
- USER_DEFINED_TYPE_CATALOG
- USER_DEFINED_TYPE_CODE
- USER_DEFINED_TYPE_NAME
- USER_DEFINED_TYPE_SCHEMA
- USERNAME
- USING
V
- VALUE
- VALUES
- VALUE_TYPE
- VARBINARY
- VARCHAR
- VARYING
- VAR_POP
- VAR_SAMP
- VERSION
- VERSION_ID
- VIEW
W
- WATERMARK
- WEEK
- WHEN
- WHENEVER
- WHERE
- WIDTH_BUCKET
- WINDOW
- WITH
- WITHIN
- WITHOUT
- WORK
- WRAPPER
- WRITE
X
- XML
- XML_CONFIG
Y
- YEAR
Z
- ZONE
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