feat: add support for INTERPRET function parsing (#1816)

* feat: add support for INTERPRET function parsing

Update JSqlParserCC.jjt adding properly definition
Added InterpretExpression java class
Add visit function implementation to classes that implements ExpressionVisitor
Added InterpretExpression tests

BREAKING CHANGE: No

* Add INTERPRET support using CastExpression instead adding a new class
Remove unused code
Replace stat import with class-specific import

---------

Co-authored-by: Matteo Sist <matteo.sist@molo17.com>

Author: matteosist

src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt

@@ -265,6 +265,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
 |   <K_STRAIGHT:"STRAIGHT_JOIN">
 |   <K_INSERT:"INSERT">
 |   <K_INTERLEAVE: "INTERLEAVE">
+|   <K_INTERPRET: "INTERPRET">
 |   <K_INTERSECT:"INTERSECT">
 |   <K_INTERVAL:"INTERVAL">
 |   <K_INTO:"INTO">
@@ -1739,7 +1740,7 @@ String RelObjectNameWithoutValue() :
 {    Token tk = null; }
 {
     ( 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="ACTION" | tk="ACTIVE" | tk="ADD" | tk="ADVANCE" | tk="ADVISE" | tk="AGAINST" | tk="ALGORITHM" | tk="ALTER" | tk="ANALYZE" | tk="APPLY" | tk="ARCHIVE" | tk="ARRAY" | tk="ASC" | tk="AT" | tk="AUTHORIZATION" | tk="AUTO" | tk="BEGIN" | tk="BINARY" | tk="BIT" | tk="BROWSE" | tk="BUFFERS" | tk="BY" | tk="BYTE" | tk="BYTES" | tk="CACHE" | tk="CALL" | tk="CASCADE" | tk="CASE" | tk="CAST" | tk="CHANGE" | tk="CHANGES" | tk="CHAR" | tk="CHARACTER" | tk="CHECKPOINT" | tk="CLOSE" | tk="COLLATE" | tk="COLUMN" | tk="COLUMNS" | tk="COMMENT" | tk="COMMIT" | tk="CONFLICT" | tk="CONVERT" | tk="COSTS" | tk="CS" | tk="CYCLE" | tk="DATABASE" | tk="DDL" | tk="DECLARE" | tk="DEFAULT" | tk="DEFERRABLE" | tk="DELAYED" | tk="DELETE" | tk="DESC" | tk="DESCRIBE" | tk="DISABLE" | tk="DISCONNECT" | tk="DIV" | tk="DML" | tk="DO" | tk="DOMAIN" | tk="DROP" | tk="DUMP" | tk="DUPLICATE" | tk="ELEMENTS" | tk="EMIT" | tk="ENABLE" | tk="END" | tk="ESCAPE" | tk="EXCLUDE" | tk="EXEC" | tk="EXECUTE" | tk="EXPLAIN" | tk="EXPLICIT" | tk="EXTENDED" | tk="EXTRACT" | tk="FALSE" | tk="FILTER" | tk="FIRST" | tk="FLUSH" | tk="FN" | tk="FOLLOWING" | tk="FORMAT" | tk="FULLTEXT" | tk="FUNCTION" | tk="GLOBAL" | tk="GRANT" | tk="GUARD" | tk="HISTORY" | tk="HOPPING" | tk="INCLUDE" | tk="INCREMENT" | tk="INDEX" | tk="INSERT" | tk="INTERLEAVE" | tk="ISNULL" | tk="JSON" | tk="KEEP" | tk="KEY" | tk="KEYS" | tk="LAST" | tk="LEADING" | tk="LINK" | tk="LOCAL" | tk="LOCKED" | tk="LOG" | tk="MATCH" | tk="MATCHED" | tk="MATERIALIZED" | tk="MAXVALUE" | tk="MEMBER" | tk="MERGE" | tk="MINVALUE" | tk="MODIFY" | tk="MOVEMENT" | tk="NEXT" | tk="NO" | tk="NOCACHE" | tk="NOKEEP" | tk="NOLOCK" | tk="NOMAXVALUE" | tk="NOMINVALUE" | tk="NOORDER" | tk="NOTHING" | tk="NOTNULL" | tk="NOVALIDATE" | tk="NOWAIT" | tk="NULLS" | tk="OF" | tk="OFF" | tk="OPEN" | tk="OVER" | tk="OVERLAPS" | tk="PARALLEL" | tk="PARENT" | tk="PARTITION" | tk="PATH" | tk="PERCENT" | tk="PLACING" | tk="PRECEDING" | tk="PRECISION" | tk="PRIMARY" | tk="PRIOR" | tk="PURGE" | tk="QUERY" | tk="QUICK" | tk="QUIESCE" | tk="RANGE" | tk="RAW" | tk="READ" | tk="RECYCLEBIN" | tk="REFERENCES" | tk="REFRESH" | tk="REGISTER" | tk="RENAME" | tk="REPLACE" | tk="RESET" | tk="RESTART" | tk="RESTRICT" | tk="RESTRICTED" | tk="RESUMABLE" | tk="RESUME" | tk="RLIKE" | tk="ROLLBACK" | tk="ROOT" | tk="ROW" | tk="ROWS" | tk="RR" | tk="RS" | tk="SAVEPOINT" | tk="SCHEMA" | tk="SEPARATOR" | tk="SEQUENCE" | tk="SESSION" | tk="SETS" | tk="SHOW" | tk="SHUTDOWN" | tk="SIBLINGS" | tk="SIGNED" | tk="SIMILAR" | tk="SIZE" | tk="SKIP" | tk="STORED" | tk="STRING" | tk="SUSPEND" | tk="SWITCH" | tk="SYNONYM" | tk="SYSTEM" | tk="TABLE" | tk="TABLESPACE" | tk="TEMP" | tk="TEMPORARY" | tk="THEN" | tk="TIMEOUT" | tk="TIMESTAMPTZ" | tk="TO" | tk="TRIGGER" | tk="TRUE" | tk="TRUNCATE" | tk="TUMBLING" | tk="TYPE" | tk="UNLOGGED" | tk="UNQIESCE" | tk="UNSIGNED" | tk="UPDATE" | tk="UPSERT" | tk="UR" | tk="USER" | tk="VALIDATE" | tk="VERBOSE" | tk="VIEW" | tk="WAIT" | tk="WITHIN" | tk="WITHOUT" | tk="WORK" | tk="XML" | tk="XMLAGG" | tk="XMLDATA" | tk="XMLSCHEMA" | tk="XMLTEXT" | tk="XSINIL" | tk="YAML" | tk="YES" | tk="ZONE" )
+       | tk="ACTION" | tk="ACTIVE" | tk="ADD" | tk="ADVANCE" | tk="ADVISE" | tk="AGAINST" | tk="ALGORITHM" | tk="ALTER" | tk="ANALYZE" | tk="APPLY" | tk="ARCHIVE" | tk="ARRAY" | tk="ASC" | tk="AT" | tk="AUTHORIZATION" | tk="AUTO" | tk="BEGIN" | tk="BINARY" | tk="BIT" | tk="BROWSE" | tk="BUFFERS" | tk="BY" | tk="BYTE" | tk="BYTES" | tk="CACHE" | tk="CALL" | tk="CASCADE" | tk="CASE" | tk="CAST" | tk="CHANGE" | tk="CHANGES" | tk="CHAR" | tk="CHARACTER" | tk="CHECKPOINT" | tk="CLOSE" | tk="COLLATE" | tk="COLUMN" | tk="COLUMNS" | tk="COMMENT" | tk="COMMIT" | tk="CONFLICT" | tk="CONVERT" | tk="COSTS" | tk="CS" | tk="CYCLE" | tk="DATABASE" | tk="DDL" | tk="DECLARE" | tk="DEFAULT" | tk="DEFERRABLE" | tk="DELAYED" | tk="DELETE" | tk="DESC" | tk="DESCRIBE" | tk="DISABLE" | tk="DISCONNECT" | tk="DIV" | tk="DML" | tk="DO" | tk="DOMAIN" | tk="DROP" | tk="DUMP" | tk="DUPLICATE" | tk="ELEMENTS" | tk="EMIT" | tk="ENABLE" | tk="END" | tk="ESCAPE" | tk="EXCLUDE" | tk="EXEC" | tk="EXECUTE" | tk="EXPLAIN" | tk="EXPLICIT" | tk="EXTENDED" | tk="EXTRACT" | tk="FALSE" | tk="FILTER" | tk="FIRST" | tk="FLUSH" | tk="FN" | tk="FOLLOWING" | tk="FORMAT" | tk="FULLTEXT" | tk="FUNCTION" | tk="GLOBAL" | tk="GRANT" | tk="GUARD" | tk="HISTORY" | tk="HOPPING" | tk="INCLUDE" | tk="INCREMENT" | tk="INDEX" | tk="INSERT" | tk="INTERLEAVE" | tk="INTERPRET" | tk="ISNULL" | tk="JSON" | tk="KEEP" | tk="KEY" | tk="KEYS" | tk="LAST" | tk="LEADING" | tk="LINK" | tk="LOCAL" | tk="LOCKED" | tk="LOG" | tk="MATCH" | tk="MATCHED" | tk="MATERIALIZED" | tk="MAXVALUE" | tk="MEMBER" | tk="MERGE" | tk="MINVALUE" | tk="MODIFY" | tk="MOVEMENT" | tk="NEXT" | tk="NO" | tk="NOCACHE" | tk="NOKEEP" | tk="NOLOCK" | tk="NOMAXVALUE" | tk="NOMINVALUE" | tk="NOORDER" | tk="NOTHING" | tk="NOTNULL" | tk="NOVALIDATE" | tk="NOWAIT" | tk="NULLS" | tk="OF" | tk="OFF" | tk="OPEN" | tk="OVER" | tk="OVERLAPS" | tk="PARALLEL" | tk="PARENT" | tk="PARTITION" | tk="PATH" | tk="PERCENT" | tk="PLACING" | tk="PRECEDING" | tk="PRECISION" | tk="PRIMARY" | tk="PRIOR" | tk="PURGE" | tk="QUERY" | tk="QUICK" | tk="QUIESCE" | tk="RANGE" | tk="RAW" | tk="READ" | tk="RECYCLEBIN" | tk="REFERENCES" | tk="REFRESH" | tk="REGISTER" | tk="RENAME" | tk="REPLACE" | tk="RESET" | tk="RESTART" | tk="RESTRICT" | tk="RESTRICTED" | tk="RESUMABLE" | tk="RESUME" | tk="RLIKE" | tk="ROLLBACK" | tk="ROOT" | tk="ROW" | tk="ROWS" | tk="RR" | tk="RS" | tk="SAVEPOINT" | tk="SCHEMA" | tk="SEPARATOR" | tk="SEQUENCE" | tk="SESSION" | tk="SETS" | tk="SHOW" | tk="SHUTDOWN" | tk="SIBLINGS" | tk="SIGNED" | tk="SIMILAR" | tk="SIZE" | tk="SKIP" | tk="STORED" | tk="STRING" | tk="SUSPEND" | tk="SWITCH" | tk="SYNONYM" | tk="SYSTEM" | tk="TABLE" | tk="TABLESPACE" | tk="TEMP" | tk="TEMPORARY" | tk="THEN" | tk="TIMEOUT" | tk="TIMESTAMPTZ" | tk="TO" | tk="TRIGGER" | tk="TRUE" | tk="TRUNCATE" | tk="TUMBLING" | tk="TYPE" | tk="UNLOGGED" | tk="UNQIESCE" | tk="UNSIGNED" | tk="UPDATE" | tk="UPSERT" | tk="UR" | tk="USER" | tk="VALIDATE" | tk="VERBOSE" | tk="VIEW" | tk="WAIT" | tk="WITHIN" | tk="WITHOUT" | tk="WORK" | tk="XML" | tk="XMLAGG" | tk="XMLDATA" | tk="XMLSCHEMA" | tk="XMLTEXT" | tk="XSINIL" | tk="YAML" | tk="YES" | tk="ZONE" )
     { return tk.image; }
 }
 
@@ -4693,6 +4694,8 @@ CastExpression CastExpression():
         keyword=<K_SAFE_CAST>
         |
         keyword=<K_TRY_CAST>
+        |
+        keyword=<K_INTERPRET>
     )
     {
         retval = new CastExpression(keyword.image);

src/test/java/net/sf/jsqlparser/expression/InterpretExpressionTest.java

@@ -0,0 +1,17 @@
+package net.sf.jsqlparser.expression;
+
+import net.sf.jsqlparser.JSQLParserException;
+import net.sf.jsqlparser.test.TestUtils;
+import org.junit.jupiter.api.Test;
+
+/**
+ * @author Matteo Sist
+ */
+public class InterpretExpressionTest {
+
+    @Test
+    public void testInterpret() throws JSQLParserException {
+        TestUtils.assertExpressionCanBeParsedAndDeparsed("INTERPRET(1 AS INTEGER)", true);
+        TestUtils.assertExpressionCanBeParsedAndDeparsed("INTERPRET(SUBSTRING(ENTRY_DATA, 1, 4) AS INTEGER)", true);
+    }
+}