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Refer Antlr file using specific branch #2893

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8 changes: 8 additions & 0 deletions async-query-core/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -32,3 +32,11 @@ Following is the list of extension points where the consumer of the library need
- [DataSourceSparkParameterComposer](src/main/java/org/opensearch/sql/spark/parameter/DataSourceSparkParameterComposer.java)
- [GeneralSparkParameterComposer](src/main/java/org/opensearch/sql/spark/parameter/GeneralSparkParameterComposer.java)
- [SparkSubmitParameterModifier](src/main/java/org/opensearch/sql/spark/config/SparkSubmitParameterModifier.java) To be deprecated in favor of GeneralSparkParameterComposer

## Update Grammar files
This package uses ANTLR grammar files from `opensearch-spark` and `Spark` repositories.
To update the grammar files, update `build.gradle` file (in `downloadG4Files` task) as needed and run:
```
./gradlew async-query-core:downloadG4Files
```
This will overwrite the files under `src/main/antlr`.
16 changes: 6 additions & 10 deletions async-query-core/build.gradle
Original file line number Diff line number Diff line change
Expand Up @@ -21,10 +21,12 @@ tasks.register('downloadG4Files', Exec) {

executable 'curl'

args '-o', 'src/main/antlr/FlintSparkSqlExtensions.g4', 'https://raw.githubusercontent.com/opensearch-project/opensearch-spark/main/flint-spark-integration/src/main/antlr4/FlintSparkSqlExtensions.g4'
args '-o', 'src/main/antlr/SparkSqlBase.g4', 'https://raw.githubusercontent.com/opensearch-project/opensearch-spark/main/flint-spark-integration/src/main/antlr4/SparkSqlBase.g4'
args '-o', 'src/main/antlr/SqlBaseParser.g4', 'https://raw.githubusercontent.com/apache/spark/master/sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4'
args '-o', 'src/main/antlr/SqlBaseLexer.g4', 'https://raw.githubusercontent.com/apache/spark/master/sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseLexer.g4'
def opensearchSparkBranch = "0.5"
def apacheSparkVersionTag = "v3.5.1"
args '-o', 'src/main/antlr/FlintSparkSqlExtensions.g4', "https://raw.githubusercontent.com/opensearch-project/opensearch-spark/${opensearchSparkBranch}/flint-spark-integration/src/main/antlr4/FlintSparkSqlExtensions.g4"
args '-o', 'src/main/antlr/SparkSqlBase.g4', "https://raw.githubusercontent.com/opensearch-project/opensearch-spark/${opensearchSparkBranch}/flint-spark-integration/src/main/antlr4/SparkSqlBase.g4"
args '-o', 'src/main/antlr/SqlBaseParser.g4', "https://raw.githubusercontent.com/apache/spark/${apacheSparkVersionTag}/sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4"
args '-o', 'src/main/antlr/SqlBaseLexer.g4', "https://raw.githubusercontent.com/apache/spark/${apacheSparkVersionTag}/sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseLexer.g4"
}

generateGrammarSource {
Expand All @@ -38,12 +40,6 @@ configurations {
}
}

// skip download in case of offline build
if (!gradle.startParameter.offline) {
// Make sure the downloadG4File task runs before the generateGrammarSource task
generateGrammarSource.dependsOn downloadG4Files
}

dependencies {
antlr "org.antlr:antlr4:4.7.1"

Expand Down
89 changes: 9 additions & 80 deletions async-query-core/src/main/antlr/SqlBaseLexer.g4
Original file line number Diff line number Diff line change
Expand Up @@ -69,35 +69,6 @@ lexer grammar SqlBaseLexer;
public void markUnclosedComment() {
has_unclosed_bracketed_comment = true;
}

/**
* When greater than zero, it's in the middle of parsing ARRAY/MAP/STRUCT type.
*/
public int complex_type_level_counter = 0;

/**
* Increase the counter by one when hits KEYWORD 'ARRAY', 'MAP', 'STRUCT'.
*/
public void incComplexTypeLevelCounter() {
complex_type_level_counter++;
}

/**
* Decrease the counter by one when hits close tag '>' && the counter greater than zero
* which means we are in the middle of complex type parsing. Otherwise, it's a dangling
* GT token and we do nothing.
*/
public void decComplexTypeLevelCounter() {
if (complex_type_level_counter > 0) complex_type_level_counter--;
}

/**
* If the counter is zero, it's a shift right operator. It can be closing tags of an complex
* type definition, such as MAP<INT, ARRAY<INT>>.
*/
public boolean isShiftRightOperator() {
return complex_type_level_counter == 0 ? true : false;
}
}

SEMICOLON: ';';
Expand All @@ -108,7 +79,6 @@ COMMA: ',';
DOT: '.';
LEFT_BRACKET: '[';
RIGHT_BRACKET: ']';
BANG: '!';

// NOTE: If you add a new token in the list below, you should update the list of keywords
// and reserved tag in `docs/sql-ref-ansi-compliance.md#sql-keywords`, and
Expand All @@ -129,24 +99,21 @@ ANTI: 'ANTI';
ANY: 'ANY';
ANY_VALUE: 'ANY_VALUE';
ARCHIVE: 'ARCHIVE';
ARRAY: 'ARRAY' {incComplexTypeLevelCounter();};
ARRAY: 'ARRAY';
AS: 'AS';
ASC: 'ASC';
AT: 'AT';
AUTHORIZATION: 'AUTHORIZATION';
BEGIN: 'BEGIN';
BETWEEN: 'BETWEEN';
BIGINT: 'BIGINT';
BINARY: 'BINARY';
BINDING: 'BINDING';
BOOLEAN: 'BOOLEAN';
BOTH: 'BOTH';
BUCKET: 'BUCKET';
BUCKETS: 'BUCKETS';
BY: 'BY';
BYTE: 'BYTE';
CACHE: 'CACHE';
CALLED: 'CALLED';
CASCADE: 'CASCADE';
CASE: 'CASE';
CAST: 'CAST';
Expand All @@ -161,19 +128,16 @@ CLUSTER: 'CLUSTER';
CLUSTERED: 'CLUSTERED';
CODEGEN: 'CODEGEN';
COLLATE: 'COLLATE';
COLLATION: 'COLLATION';
COLLECTION: 'COLLECTION';
COLUMN: 'COLUMN';
COLUMNS: 'COLUMNS';
COMMENT: 'COMMENT';
COMMIT: 'COMMIT';
COMPACT: 'COMPACT';
COMPACTIONS: 'COMPACTIONS';
COMPENSATION: 'COMPENSATION';
COMPUTE: 'COMPUTE';
CONCATENATE: 'CONCATENATE';
CONSTRAINT: 'CONSTRAINT';
CONTAINS: 'CONTAINS';
COST: 'COST';
CREATE: 'CREATE';
CROSS: 'CROSS';
Expand All @@ -197,29 +161,24 @@ DATE_DIFF: 'DATE_DIFF';
DBPROPERTIES: 'DBPROPERTIES';
DEC: 'DEC';
DECIMAL: 'DECIMAL';
DECLARE: 'DECLARE';
DEFAULT: 'DEFAULT';
DEFINED: 'DEFINED';
DEFINER: 'DEFINER';
DELETE: 'DELETE';
DELIMITED: 'DELIMITED';
DESC: 'DESC';
DESCRIBE: 'DESCRIBE';
DETERMINISTIC: 'DETERMINISTIC';
DFS: 'DFS';
DIRECTORIES: 'DIRECTORIES';
DIRECTORY: 'DIRECTORY';
DISTINCT: 'DISTINCT';
DISTRIBUTE: 'DISTRIBUTE';
DIV: 'DIV';
DO: 'DO';
DOUBLE: 'DOUBLE';
DROP: 'DROP';
ELSE: 'ELSE';
END: 'END';
ESCAPE: 'ESCAPE';
ESCAPED: 'ESCAPED';
EVOLUTION: 'EVOLUTION';
EXCEPT: 'EXCEPT';
EXCHANGE: 'EXCHANGE';
EXCLUDE: 'EXCLUDE';
Expand Down Expand Up @@ -257,28 +216,24 @@ HOURS: 'HOURS';
IDENTIFIER_KW: 'IDENTIFIER';
IF: 'IF';
IGNORE: 'IGNORE';
IMMEDIATE: 'IMMEDIATE';
IMPORT: 'IMPORT';
IN: 'IN';
INCLUDE: 'INCLUDE';
INDEX: 'INDEX';
INDEXES: 'INDEXES';
INNER: 'INNER';
INPATH: 'INPATH';
INPUT: 'INPUT';
INPUTFORMAT: 'INPUTFORMAT';
INSERT: 'INSERT';
INTERSECT: 'INTERSECT';
INTERVAL: 'INTERVAL';
INT: 'INT';
INTEGER: 'INTEGER';
INTO: 'INTO';
INVOKER: 'INVOKER';
IS: 'IS';
ITEMS: 'ITEMS';
JOIN: 'JOIN';
KEYS: 'KEYS';
LANGUAGE: 'LANGUAGE';
LAST: 'LAST';
LATERAL: 'LATERAL';
LAZY: 'LAZY';
Expand All @@ -297,7 +252,7 @@ LOCKS: 'LOCKS';
LOGICAL: 'LOGICAL';
LONG: 'LONG';
MACRO: 'MACRO';
MAP: 'MAP' {incComplexTypeLevelCounter();};
MAP: 'MAP';
MATCHED: 'MATCHED';
MERGE: 'MERGE';
MICROSECOND: 'MICROSECOND';
Expand All @@ -306,7 +261,6 @@ MILLISECOND: 'MILLISECOND';
MILLISECONDS: 'MILLISECONDS';
MINUTE: 'MINUTE';
MINUTES: 'MINUTES';
MODIFIES: 'MODIFIES';
MONTH: 'MONTH';
MONTHS: 'MONTHS';
MSCK: 'MSCK';
Expand All @@ -317,8 +271,7 @@ NANOSECOND: 'NANOSECOND';
NANOSECONDS: 'NANOSECONDS';
NATURAL: 'NATURAL';
NO: 'NO';
NONE: 'NONE';
NOT: 'NOT';
NOT: 'NOT' | '!';
NULL: 'NULL';
NULLS: 'NULLS';
NUMERIC: 'NUMERIC';
Expand All @@ -340,6 +293,8 @@ OVERWRITE: 'OVERWRITE';
PARTITION: 'PARTITION';
PARTITIONED: 'PARTITIONED';
PARTITIONS: 'PARTITIONS';
PERCENTILE_CONT: 'PERCENTILE_CONT';
PERCENTILE_DISC: 'PERCENTILE_DISC';
PERCENTLIT: 'PERCENT';
PIVOT: 'PIVOT';
PLACING: 'PLACING';
Expand All @@ -352,7 +307,6 @@ PURGE: 'PURGE';
QUARTER: 'QUARTER';
QUERY: 'QUERY';
RANGE: 'RANGE';
READS: 'READS';
REAL: 'REAL';
RECORDREADER: 'RECORDREADER';
RECORDWRITER: 'RECORDWRITER';
Expand All @@ -367,8 +321,6 @@ REPLACE: 'REPLACE';
RESET: 'RESET';
RESPECT: 'RESPECT';
RESTRICT: 'RESTRICT';
RETURN: 'RETURN';
RETURNS: 'RETURNS';
REVOKE: 'REVOKE';
RIGHT: 'RIGHT';
RLIKE: 'RLIKE' | 'REGEXP';
Expand All @@ -382,7 +334,6 @@ SECOND: 'SECOND';
SECONDS: 'SECONDS';
SCHEMA: 'SCHEMA';
SCHEMAS: 'SCHEMAS';
SECURITY: 'SECURITY';
SELECT: 'SELECT';
SEMI: 'SEMI';
SEPARATED: 'SEPARATED';
Expand All @@ -394,21 +345,18 @@ SETMINUS: 'MINUS';
SETS: 'SETS';
SHORT: 'SHORT';
SHOW: 'SHOW';
SINGLE: 'SINGLE';
SKEWED: 'SKEWED';
SMALLINT: 'SMALLINT';
SOME: 'SOME';
SORT: 'SORT';
SORTED: 'SORTED';
SOURCE: 'SOURCE';
SPECIFIC: 'SPECIFIC';
SQL: 'SQL';
START: 'START';
STATISTICS: 'STATISTICS';
STORED: 'STORED';
STRATIFY: 'STRATIFY';
STRING: 'STRING';
STRUCT: 'STRUCT' {incComplexTypeLevelCounter();};
STRUCT: 'STRUCT';
SUBSTR: 'SUBSTR';
SUBSTRING: 'SUBSTRING';
SYNC: 'SYNC';
Expand All @@ -423,15 +371,13 @@ TEMPORARY: 'TEMPORARY' | 'TEMP';
TERMINATED: 'TERMINATED';
THEN: 'THEN';
TIME: 'TIME';
TIMEDIFF: 'TIMEDIFF';
TIMESTAMP: 'TIMESTAMP';
TIMESTAMP_LTZ: 'TIMESTAMP_LTZ';
TIMESTAMP_NTZ: 'TIMESTAMP_NTZ';
TIMESTAMPADD: 'TIMESTAMPADD';
TIMESTAMPDIFF: 'TIMESTAMPDIFF';
TINYINT: 'TINYINT';
TO: 'TO';
EXECUTE: 'EXECUTE';
TOUCH: 'TOUCH';
TRAILING: 'TRAILING';
TRANSACTION: 'TRANSACTION';
Expand All @@ -457,9 +403,6 @@ USER: 'USER';
USING: 'USING';
VALUES: 'VALUES';
VARCHAR: 'VARCHAR';
VAR: 'VAR';
VARIABLE: 'VARIABLE';
VARIANT: 'VARIANT';
VERSION: 'VERSION';
VIEW: 'VIEW';
VIEWS: 'VIEWS';
Expand All @@ -468,7 +411,6 @@ WEEK: 'WEEK';
WEEKS: 'WEEKS';
WHEN: 'WHEN';
WHERE: 'WHERE';
WHILE: 'WHILE';
WINDOW: 'WINDOW';
WITH: 'WITH';
WITHIN: 'WITHIN';
Expand All @@ -486,11 +428,8 @@ NEQ : '<>';
NEQJ: '!=';
LT : '<';
LTE : '<=' | '!>';
GT : '>' {decComplexTypeLevelCounter();};
GT : '>';
GTE : '>=' | '!<';
SHIFT_LEFT: '<<';
SHIFT_RIGHT: '>>' {isShiftRightOperator()}?;
SHIFT_RIGHT_UNSIGNED: '>>>' {isShiftRightOperator()}?;

PLUS: '+';
MINUS: '-';
Expand All @@ -503,7 +442,6 @@ PIPE: '|';
CONCAT_PIPE: '||';
HAT: '^';
COLON: ':';
DOUBLE_COLON: '::';
ARROW: '->';
FAT_ARROW : '=>';
HENT_START: '/*+';
Expand Down Expand Up @@ -563,13 +501,8 @@ BIGDECIMAL_LITERAL
| DECIMAL_DIGITS EXPONENT? 'BD' {isValidDecimal()}?
;

// Generalize the identifier to give a sensible INVALID_IDENTIFIER error message:
// * Unicode letters rather than a-z and A-Z only
// * URI paths for table references using paths
// We then narrow down to ANSI rules in exitUnquotedIdentifier() in the parser.
IDENTIFIER
: (UNICODE_LETTER | DIGIT | '_')+
| UNICODE_LETTER+ '://' (UNICODE_LETTER | DIGIT | '_' | '/' | '-' | '.' | '?' | '=' | '&' | '#' | '%')+
: (LETTER | DIGIT | '_')+
;

BACKQUOTED_IDENTIFIER
Expand All @@ -593,10 +526,6 @@ fragment LETTER
: [A-Z]
;

fragment UNICODE_LETTER
: [\p{L}]
;

SIMPLE_COMMENT
: '--' ('\\\n' | ~[\r\n])* '\r'? '\n'? -> channel(HIDDEN)
;
Expand All @@ -606,7 +535,7 @@ BRACKETED_COMMENT
;

WS
: [ \t\n\f\r\u000B\u00A0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u2028\u202F\u205F\u3000]+ -> channel(HIDDEN)
: [ \r\n\t]+ -> channel(HIDDEN)
;

// Catch-all for anything we can't recognize.
Expand Down
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