Confusing about keywords

ShawnYan · January 24, 2024, 5:55am

hi there, in the parser.y file, some keywords is not converted into capital letter, means that these words are not keywords? then why we need to list here?

github.com

pingcap/tidb/blob/master/pkg/parser/parser.y#L537


	parser                "PARSER"
	partial               "PARTIAL"
	partitioning          "PARTITIONING"
	partitions            "PARTITIONS"
	password              "PASSWORD"
	passwordLockTime      "PASSWORD_LOCK_TIME"
	pause                 "PAUSE"
	percent               "PERCENT"
	per_db                "PER_DB"
	per_table             "PER_TABLE"
	pipesAsOr
	plugins               "PLUGINS"
	point                 "POINT"
	policy                "POLICY"
	preceding             "PRECEDING"
	prepare               "PREPARE"
	preserve              "PRESERVE"
	preSplitRegions       "PRE_SPLIT_REGIONS"
	privileges            "PRIVILEGES"
	process               "PROCESS"
	processlist           "PROCESSLIST"

pipesAsOr is UnReservedKeyword?

github.com

pingcap/tidb/blob/master/pkg/parser/parser.y#L805


	untilTS               "UNTIL_TS"
	variance              "VARIANCE"
	varPop                "VAR_POP"
	varSamp               "VAR_SAMP"
	verboseType           "VERBOSE"
	voterConstraints      "VOTER_CONSTRAINTS"
	voters                "VOTERS"
	voter                 "VOTER"
	watch                 "WATCH"


	/* The following tokens belong to TiDBKeyword. Notice: make sure these tokens are contained in TiDBKeyword. */
	admin                      "ADMIN"
	batch                      "BATCH"
	buckets                    "BUCKETS"
	builtinApproxCountDistinct
	builtinApproxPercentile
	builtinBitAnd
	builtinBitOr
	builtinBitXor
	builtinCast
	builtinCount

builtinApproxCountDistinct is tidb keyword?

wuhuizuo · February 26, 2024, 5:13am

Welcome to create an issue on TiDB repo.