@@ -231,7 +231,9 @@ SKIP:
231231
232232TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
233233{
234- <K_ABSENT: "ABSENT">
234+ <K_AT_SIGN: "@">
235+ | <K_AT_V: "@V">
236+ | <K_ABSENT: "ABSENT">
235237| <K_ACTION: "ACTION">
236238| <K_ACTIVE: "ACTIVE">
237239| <K_ADD:"ADD">
@@ -610,6 +612,8 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
610612| <K_SYMMETRIC:"SYMMETRIC">
611613| <K_SYNONYM:"SYNONYM">
612614| <K_SYSTEM:"SYSTEM">
615+ | <K_SYSTEM_TIMESTAMP:"SYSTEM_TIMESTAMP">
616+ | <K_SYSTEM_VERSION:"SYSTEM_VERSION">
613617| <K_TABLE:"TABLE">
614618| <K_TABLES:"TABLES">
615619| <K_TABLESAMPLE: "TABLESAMPLE">
@@ -661,6 +665,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
661665| <K_VALUES:"VALUES">
662666| <K_VERBOSE: "VERBOSE">
663667| <K_VERIFY: "VERIFY">
668+ | <K_VERSION: "VERSION">
664669| <K_VIEW:"VIEW">
665670| <K_VISIBLE: "VISIBLE">
666671| <K_VOLATILE:"VOLATILE">
@@ -782,6 +787,7 @@ TOKEN:
782787 | <Nd> | [ "$" , "#", "_" ] // Not SQL:2016 compliant!
783788 >
784789| <#PART_LETTER: <UnicodeIdentifierStart> | <UnicodeIdentifierExtend> | [ "$" , "#", "_" , "@" ] >
790+ | <S_AT_IDENTIFIER: <K_AT_SIGN> (<K_AT_SIGN>)? <S_IDENTIFIER> >
785791
786792// Unicode characters and categories are defined here: https://www.unicode.org/Public/UNIDATA/UnicodeData.txt
787793// SQL:2016 states:
@@ -3167,7 +3173,7 @@ String RelObjectNameWithoutValue() :
31673173{ Token tk = null; }
31683174{
31693175 ( tk=<DATA_TYPE> | tk=<S_IDENTIFIER> | tk=<S_QUOTED_IDENTIFIER> | tk=<K_DATE_LITERAL> | tk=<K_DATETIMELITERAL> | tk=<K_STRING_FUNCTION_NAME> | tk=<K_ISOLATION> | tk=<K_TIME_KEY_EXPR> | tk=<K_TEXT_LITERAL>
3170- | tk="ACTION" | tk="ACTIVE" | tk="ADD" | tk="ADVANCE" | tk="ADVISE" | tk="AGAINST" | tk="AGGREGATE" | tk="ALGORITHM" | tk="ALIGN" | tk="ALTER" | tk="ALWAYS" | tk="ANALYZE" | tk="APPEND_ONLY" | tk="APPLY" | tk="APPROXIMATE" | tk="ARCHIVE" | tk="ARRAY" | tk="ASC" | tk="ASYMMETRIC" | tk="AT" | tk="AUTHORIZATION" | tk="AUTO" | tk="AUTO_INCREMENT" | tk="AZURE" | tk="BASE64" | tk="BEFORE" | tk="BEGIN" | tk="BERNOULLI" | tk="BINARY" | tk="BIT" | tk="BLOBSTORAGE" | tk="BLOCK" | tk="BOOLEAN" | tk="BROWSE" | tk="BUFFERS" | tk="BY" | tk="BYTE" | tk="BYTES" | tk="CACHE" | tk="CALL" | tk="CASCADE" | tk="CASE" | tk="CAST" | tk="CERTIFICATE" | tk="CHANGE" | tk="CHANGES" | tk="CHAR" | tk="CHARACTER" | tk="CHECKPOINT" | tk="CLOSE" | tk="CLOUD" | tk="COALESCE" | tk="COLLATE" | tk="COLUMN" | tk="COLUMNS" | tk="COMMENT" | tk="COMMENTS" | tk="COMMIT" | tk="CONCURRENTLY" | tk="CONFLICT" | tk="CONSTRAINTS" | tk="CONVERT" | tk="CORRESPONDING" | tk="COSTS" | tk="COUNT" | tk="CREATED" | tk="CS" | tk="CYCLE" | tk="DATA" | tk="DATABASE" | tk="DATETIME" | tk="DBA_RECYCLEBIN" | tk="DDL" | tk="DECLARE" | tk="DEFAULTS" | tk="DEFERRABLE" | tk="DELAYED" | tk="DELETE" | tk="DELIMIT" | tk="DELIMITER" | tk="DESC" | tk="DESCRIBE" | tk="DISABLE" | tk="DISCARD" | tk="DISCONNECT" | tk="DIV" | tk="DML" | tk="DO" | tk="DOMAIN" | tk="DRIVER" | tk="DROP" | tk="DUMP" | tk="DUPLICATE" | tk="ELEMENTS" | tk="EMIT" | tk="ENABLE" | tk="ENCODING" | tk="ENCRYPTION" | tk="END" | tk="ENFORCED" | tk="ENGINE" | tk="ERROR" | tk="ESCAPE" | tk="EXA" | tk="EXCHANGE" | tk="EXCLUDE" | tk="EXCLUDING" | tk="EXEC" | tk="EXECUTE" | tk="EXPLAIN" | tk="EXPLICIT" | tk="EXPORT" | tk="EXTENDED" | tk="EXTRACT" | tk="FILTER" | tk="FIRST" | tk="FLUSH" | tk="FN" | tk="FOLLOWING" | tk="FORMAT" | tk="FULLTEXT" | tk="FUNCTION" | tk="GRANT" | tk="GROUP_CONCAT" | tk="GUARD" | tk="HASH" | tk="HIGH" | tk="HIGH_PRIORITY" | tk="HISTORY" | tk="HOPPING" | tk="IDENTIFIED" | tk="IDENTITY" | tk="INCLUDE" | tk="INCLUDE_NULL_VALUES" | tk="INCLUDING" | tk="INCREMENT" | tk="INDEX" | tk="INFORMATION" | tk="INSERT" | tk="INTERLEAVE" | tk="INTERPRET" | tk="INVALIDATE" | tk="INVERSE" | tk="INVISIBLE" | tk="ISNULL" | tk="JDBC" | tk="JSON" | tk="JSON_ARRAY" | tk="JSON_ARRAYAGG" | tk="JSON_OBJECT" | tk="JSON_OBJECTAGG" | tk="KEEP" | tk="KEY" | tk="KEYS" | tk="KEY_BLOCK_SIZE" | tk="KILL" | tk="LAST" | tk="LEADING" | tk="LESS" | tk="LINK" | tk="LOCAL" | tk="LOCK" | tk="LOCKED" | tk="LOG" | tk="LONGTEXT" | tk="LOOP" | tk="LOW" | tk="LOW_PRIORITY" | tk="LTRIM" | tk="MATCH" | tk="MATCHED" | tk="MATCH_ALL" | tk="MATCH_ANY" | tk="MATCH_PHRASE" | tk="MATCH_PHRASE_PREFIX" | tk="MATCH_REGEXP" | tk="MATERIALIZED" | tk="MAX" | tk="MAXVALUE" | tk="MEDIUMTEXT" | tk="MEMBER" | tk="MERGE" | tk="MIN" | tk="MINVALUE" | tk="MODIFY" | tk="MOVEMENT" | tk="NAME" | tk="NAMES" | tk="NEVER" | tk="NEXT" | tk="NO" | tk="NOCACHE" | tk="NOKEEP" | tk="NOLOCK" | tk="NOMAXVALUE" | tk="NOMINVALUE" | tk="NONE" | tk="NOORDER" | tk="NOTHING" | tk="NOTNULL" | tk="NOVALIDATE" | tk="NOWAIT" | tk="NULLS" | tk="OF" | tk="OFF" | tk="OPEN" | tk="ORA" | tk="ORDINALITY" | tk="OVER" | tk="OVERFLOW" | tk="OVERLAPS" | tk="OVERRIDING" | tk="OVERWRITE" | tk="PADDING" | tk="PARALLEL" | tk="PARENT" | tk="PARSER" | tk="PARTITION" | tk="PARTITIONING" | tk="PATH" | tk="PERCENT" | tk="PLACING" | tk="PLAN" | tk="PLUS" | tk="PRECEDING" | tk="PRIMARY" | tk="PURGE" | tk="QUERY" | tk="QUICK" | tk="QUIESCE" | tk="RANGE" | tk="RAW" | tk="READ" | tk="REBUILD" | tk="RECURSIVE" | tk="RECYCLEBIN" | tk="REFERENCES" | tk="REFRESH" | tk="REGEXP" | tk="REGEXP_LIKE" | tk="REGISTER" | tk="REJECT" | tk="REMOTE" | tk="REMOVE" | tk="RENAME" | tk="REORGANIZE" | tk="REPAIR" | tk="REPEATABLE" | tk="REPLACE" | tk="RESET" | tk="RESPECT" | tk="RESTART" | tk="RESTRICT" | tk="RESTRICTED" | tk="RESUMABLE" | tk="RESUME" | tk="RETURN" | tk="RLIKE" | tk="ROLLBACK" | tk="ROLLUP" | tk="ROOT" | tk="ROW" | tk="ROWS" | tk="RR" | tk="RS" | tk="RTRIM" | tk="SAFE_CAST" | tk="SAVEPOINT" | tk="SCHEMA" | tk="SECURE" | tk="SEED" | tk="SEPARATOR" | tk="SEQUENCE" | tk="SESSION" | tk="SETS" | tk="SHARE" | tk="SHOW" | tk="SHUTDOWN" | tk="SIBLINGS" | tk="SIGNED" | tk="SIMILAR" | tk="SIZE" | tk="SKIP" | tk="SPATIAL" | tk="STORED" | tk="STREAM" | tk="STRICT" | tk="STRING" | tk="STRUCT" | tk="SUMMARIZE" | tk="SUSPEND" | tk="SWITCH" | tk="SYMMETRIC" | tk="SYNONYM" | tk="SYSTEM" | tk="TABLE" | tk="TABLESPACE" | tk="TEMP" | tk="TEMPORARY" | tk="TEXT" | tk="THAN" | tk="THEN" | tk="TIMEOUT" | tk="TIMESTAMPTZ" | tk="TIMEZONE" | tk="TINYTEXT" | tk="TO" | tk="TRIGGER" | tk="TRUNCATE" | tk="TRY_CAST" | tk="TUMBLING" | tk="TYPE" | tk="UNLIMITED" | tk="UNLOGGED" | tk="UNQIESCE" | tk="UNSIGNED" | tk="UPDATE" | tk="UPSERT" | tk="UR" | tk="USER" | tk="VALIDATE" | tk="VALIDATION" | tk="VERBOSE" | tk="VIEW" | tk="VISIBLE" | tk="VOLATILE" | tk="WAIT" | tk="WITHIN" | tk="WITHOUT" | tk="WITHOUT_ARRAY_WRAPPER" | tk="WORK" | tk="XML" | tk="XMLAGG" | tk="XMLDATA" | tk="XMLSCHEMA" | tk="XMLTEXT" | tk="XSINIL" | tk="YAML" | tk="YES" | tk="ZONE" )
3176+ | tk="ACTION" | tk="ACTIVE" | tk="ADD" | tk="ADVANCE" | tk="ADVISE" | tk="AGAINST" | tk="AGGREGATE" | tk="ALGORITHM" | tk="ALIGN" | tk="ALTER" | tk="ALWAYS" | tk="ANALYZE" | tk="APPEND_ONLY" | tk="APPLY" | tk="APPROXIMATE" | tk="ARCHIVE" | tk="ARRAY" | tk="ASC" | tk="ASYMMETRIC" | tk="AT" | tk="AUTHORIZATION" | tk="AUTO" | tk="AUTO_INCREMENT" | tk="AZURE" | tk="BASE64" | tk="BEFORE" | tk="BEGIN" | tk="BERNOULLI" | tk="BINARY" | tk="BIT" | tk="BLOBSTORAGE" | tk="BLOCK" | tk="BOOLEAN" | tk="BROWSE" | tk="BUFFERS" | tk="BY" | tk="BYTE" | tk="BYTES" | tk="CACHE" | tk="CALL" | tk="CASCADE" | tk="CASE" | tk="CAST" | tk="CERTIFICATE" | tk="CHANGE" | tk="CHANGES" | tk="CHAR" | tk="CHARACTER" | tk="CHECKPOINT" | tk="CLOSE" | tk="CLOUD" | tk="COALESCE" | tk="COLLATE" | tk="COLUMN" | tk="COLUMNS" | tk="COMMENT" | tk="COMMENTS" | tk="COMMIT" | tk="CONCURRENTLY" | tk="CONFLICT" | tk="CONSTRAINTS" | tk="CONVERT" | tk="CORRESPONDING" | tk="COSTS" | tk="COUNT" | tk="CREATED" | tk="CS" | tk="CYCLE" | tk="DATA" | tk="DATABASE" | tk="DATETIME" | tk="DBA_RECYCLEBIN" | tk="DDL" | tk="DECLARE" | tk="DEFAULTS" | tk="DEFERRABLE" | tk="DELAYED" | tk="DELETE" | tk="DELIMIT" | tk="DELIMITER" | tk="DESC" | tk="DESCRIBE" | tk="DISABLE" | tk="DISCARD" | tk="DISCONNECT" | tk="DIV" | tk="DML" | tk="DO" | tk="DOMAIN" | tk="DRIVER" | tk="DROP" | tk="DUMP" | tk="DUPLICATE" | tk="ELEMENTS" | tk="EMIT" | tk="ENABLE" | tk="ENCODING" | tk="ENCRYPTION" | tk="END" | tk="ENFORCED" | tk="ENGINE" | tk="ERROR" | tk="ESCAPE" | tk="EXA" | tk="EXCHANGE" | tk="EXCLUDE" | tk="EXCLUDING" | tk="EXEC" | tk="EXECUTE" | tk="EXPLAIN" | tk="EXPLICIT" | tk="EXPORT" | tk="EXTENDED" | tk="EXTRACT" | tk="FILTER" | tk="FIRST" | tk="FLUSH" | tk="FN" | tk="FOLLOWING" | tk="FORMAT" | tk="FULLTEXT" | tk="FUNCTION" | tk="GRANT" | tk="GROUP_CONCAT" | tk="GUARD" | tk="HASH" | tk="HIGH" | tk="HIGH_PRIORITY" | tk="HISTORY" | tk="HOPPING" | tk="IDENTIFIED" | tk="IDENTITY" | tk="INCLUDE" | tk="INCLUDE_NULL_VALUES" | tk="INCLUDING" | tk="INCREMENT" | tk="INDEX" | tk="INFORMATION" | tk="INSERT" | tk="INTERLEAVE" | tk="INTERPRET" | tk="INVALIDATE" | tk="INVERSE" | tk="INVISIBLE" | tk="ISNULL" | tk="JDBC" | tk="JSON" | tk="JSON_ARRAY" | tk="JSON_ARRAYAGG" | tk="JSON_OBJECT" | tk="JSON_OBJECTAGG" | tk="KEEP" | tk="KEY" | tk="KEYS" | tk="KEY_BLOCK_SIZE" | tk="KILL" | tk="LAST" | tk="LEADING" | tk="LESS" | tk="LINK" | tk="LOCAL" | tk="LOCK" | tk="LOCKED" | tk="LOG" | tk="LONGTEXT" | tk="LOOP" | tk="LOW" | tk="LOW_PRIORITY" | tk="LTRIM" | tk="MATCH" | tk="MATCHED" | tk="MATCH_ALL" | tk="MATCH_ANY" | tk="MATCH_PHRASE" | tk="MATCH_PHRASE_PREFIX" | tk="MATCH_REGEXP" | tk="MATERIALIZED" | tk="MAX" | tk="MAXVALUE" | tk="MEDIUMTEXT" | tk="MEMBER" | tk="MERGE" | tk="MIN" | tk="MINVALUE" | tk="MODIFY" | tk="MOVEMENT" | tk="NAME" | tk="NAMES" | tk="NEVER" | tk="NEXT" | tk="NO" | tk="NOCACHE" | tk="NOKEEP" | tk="NOLOCK" | tk="NOMAXVALUE" | tk="NOMINVALUE" | tk="NONE" | tk="NOORDER" | tk="NOTHING" | tk="NOTNULL" | tk="NOVALIDATE" | tk="NOWAIT" | tk="NULLS" | tk="OF" | tk="OFF" | tk="OPEN" | tk="ORA" | tk="ORDINALITY" | tk="OVER" | tk="OVERFLOW" | tk="OVERLAPS" | tk="OVERRIDING" | tk="OVERWRITE" | tk="PADDING" | tk="PARALLEL" | tk="PARENT" | tk="PARSER" | tk="PARTITION" | tk="PARTITIONING" | tk="PATH" | tk="PERCENT" | tk="PLACING" | tk="PLAN" | tk="PLUS" | tk="PRECEDING" | tk="PRIMARY" | tk="PURGE" | tk="QUERY" | tk="QUICK" | tk="QUIESCE" | tk="RANGE" | tk="RAW" | tk="READ" | tk="REBUILD" | tk="RECURSIVE" | tk="RECYCLEBIN" | tk="REFERENCES" | tk="REFRESH" | tk="REGEXP" | tk="REGEXP_LIKE" | tk="REGISTER" | tk="REJECT" | tk="REMOTE" | tk="REMOVE" | tk="RENAME" | tk="REORGANIZE" | tk="REPAIR" | tk="REPEATABLE" | tk="REPLACE" | tk="RESET" | tk="RESPECT" | tk="RESTART" | tk="RESTRICT" | tk="RESTRICTED" | tk="RESUMABLE" | tk="RESUME" | tk="RETURN" | tk="RLIKE" | tk="ROLLBACK" | tk="ROLLUP" | tk="ROOT" | tk="ROW" | tk="ROWS" | tk="RR" | tk="RS" | tk="RTRIM" | tk="SAFE_CAST" | tk="SAVEPOINT" | tk="SCHEMA" | tk="SECURE" | tk="SEED" | tk="SEPARATOR" | tk="SEQUENCE" | tk="SESSION" | tk="SETS" | tk="SHARE" | tk="SHOW" | tk="SHUTDOWN" | tk="SIBLINGS" | tk="SIGNED" | tk="SIMILAR" | tk="SIZE" | tk="SKIP" | tk="SPATIAL" | tk="STORED" | tk="STREAM" | tk="STRICT" | tk="STRING" | tk="STRUCT" | tk="SUMMARIZE" | tk="SUSPEND" | tk="SWITCH" | tk="SYMMETRIC" | tk="SYNONYM" | tk="SYSTEM" | tk="SYSTEM_TIMESTAMP" | tk="SYSTEM_VERSION" | tk="TABLE" | tk="TABLESPACE" | tk="TEMP" | tk="TEMPORARY" | tk="TEXT" | tk="THAN" | tk="THEN" | tk="TIMEOUT" | tk="TIMESTAMPTZ" | tk="TIMEZONE" | tk="TINYTEXT" | tk="TO" | tk="TRIGGER" | tk="TRUNCATE" | tk="TRY_CAST" | tk="TUMBLING" | tk="TYPE" | tk="UNLIMITED" | tk="UNLOGGED" | tk="UNQIESCE" | tk="UNSIGNED" | tk="UPDATE" | tk="UPSERT" | tk="UR" | tk="USER" | tk="VALIDATE" | tk="VALIDATION" | tk="VERBOSE" | tk="VERSION" | tk="VIEW" | tk="VISIBLE" | tk="VOLATILE" | tk="WAIT" | tk="WITHIN" | tk="WITHOUT" | tk="WITHOUT_ARRAY_WRAPPER" | tk="WORK" | tk="XML" | tk="XMLAGG" | tk="XMLDATA" | tk="XMLSCHEMA" | tk="XMLTEXT" | tk="XSINIL" | tk="YAML" | tk="YES" | tk="ZONE" )
31713177 { return tk.image; }
31723178}
31733179
@@ -6568,16 +6574,13 @@ OracleNamedFunctionParameter OracleNamedFunctionParameter() : {
65686574}
65696575
65706576UserVariable UserVariable() : {
6571- UserVariable var = new UserVariable() ;
6577+ Token tk ;
65726578 String varName;
6573- String var2;
65746579}
65756580{
6576- ("@" | "@@" { var.setDoubleAdd(true);} )
6577- varName=IdentifierChain()
6581+ tk = <S_AT_IDENTIFIER> varName=IdentifierChain2(tk.image)
65786582 {
6579- var.setName(varName);
6580- return var;
6583+ return new UserVariable(varName);
65816584 }
65826585}
65836586
@@ -10283,6 +10286,17 @@ String IdentifierChain():
1028310286 }
1028410287}
1028510288
10289+ String IdentifierChain2(String identifierChain):
10290+ {
10291+ String part;
10292+ }
10293+ {
10294+ ( LOOKAHEAD(2) "." part=RelObjectNameExt2() { identifierChain += "." + part; } )*
10295+ {
10296+ return identifierChain;
10297+ }
10298+ }
10299+
1028610300Expression CharacterPrimary():
1028710301{
1028810302 Expression expression;
@@ -10470,6 +10484,37 @@ void SnowflakeTimeTravelChange(StringBuilder builder):
1047010484 ]
1047110485}
1047210486
10487+ void DataBricksTemporalSpec(StringBuilder builder):
10488+ {
10489+ Token tk;
10490+ Expression expression;
10491+ }
10492+ {
10493+ /*
10494+ temporal_spec https://docs.databricks.com/aws/en/sql/language-manual/sql-ref-names#syntax-3
10495+ {
10496+ @ timestamp_encoding |
10497+ @V version |
10498+ [ FOR ] { SYSTEM_TIMESTAMP | TIMESTAMP } AS OF timestamp_expression |
10499+ [ FOR ] { SYSTEM_VERSION | VERSION } AS OF version
10500+ }
10501+ */
10502+ (tk=<K_AT_SIGN> | tk=<K_AT_V>) { builder.append(tk.image).append(" "); }
10503+ (tk=<S_CHAR_LITERAL> | tk=<S_LONG>) { builder.append(tk.image); }
10504+ |
10505+ [ <K_FOR> { builder.append(" FOR"); } ]
10506+
10507+ ( tk=<K_SYSTEM_TIMESTAMP> | tk=<K_DATETIMELITERAL> )
10508+ <K_AS> <K_OF> expression=Expression()
10509+ { builder.append(" ").append(tk.image).append(" AS OF ").append(expression.toString()); }
10510+ |
10511+ (
10512+ ( tk=<K_SYSTEM_VERSION> | tk= <K_VERSION>) { builder.append(" ").append(tk.image); }
10513+ <K_AS> <K_OF> (tk=<S_LONG> | tk=<S_CHAR_LITERAL> ) { builder.append(" AS OF ").append(tk.image); }
10514+ )
10515+
10516+ }
10517+
1047310518String TimeTravel():
1047410519{
1047510520 StringBuilder builder = new StringBuilder();
@@ -10496,6 +10541,8 @@ String TimeTravel():
1049610541 SnowflakeTimeTravelBefore(builder)
1049710542 |
1049810543 SnowflakeTimeTravelChange(builder)
10544+ |
10545+ DataBricksTemporalSpec(builder)
1049910546 )
1050010547
1050110548 {
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