Calcite 无法解析DDL

"C:\Program Files\Java\jdk1.8.0_271\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Educational Edition 2019.3\lib\idea_rt.jar=64197:C:\Program Files\JetBrains\IntelliJ IDEA Educational Edition 2019.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_271\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunmscapi.jar;C:\Program 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com.dj.ParseFlinkSql
org.apache.calcite.sql.parser.SqlParseException: Encountered "show" at line 1, column 1.
Was expecting one of:
    "ABS" ...
    "ALTER" ...
    "ARRAY" ...
    "AVG" ...
    "CALL" ...
    "CARDINALITY" ...
    "CASE" ...
    "CAST" ...
    "CEIL" ...
    "CEILING" ...
    "CHAR_LENGTH" ...
    "CHARACTER_LENGTH" ...
    "CLASSIFIER" ...
    "COALESCE" ...
    "COLLECT" ...
    "CONVERT" ...
    "COUNT" ...
    "COVAR_POP" ...
    "COVAR_SAMP" ...
    "CUME_DIST" ...
    "CURRENT" ...
    "CURRENT_CATALOG" ...
    "CURRENT_DATE" ...
    "CURRENT_DEFAULT_TRANSFORM_GROUP" ...
    "CURRENT_PATH" ...
    "CURRENT_ROLE" ...
    "CURRENT_SCHEMA" ...
    "CURRENT_TIME" ...
    "CURRENT_TIMESTAMP" ...
    "CURRENT_USER" ...
    "CURSOR" ...
    "DATE" ...
    "DELETE" ...
    "DENSE_RANK" ...
    "DESCRIBE" ...
    "ELEMENT" ...
    "EXISTS" ...
    "EXP" ...
    "EXPLAIN" ...
    "EXTRACT" ...
    "FALSE" ...
    "FIRST_VALUE" ...
    "FLOOR" ...
    "FUSION" ...
    "GROUPING" ...
    "HOUR" ...
    "INSERT" ...
    "INTERVAL" ...
    "JSON_ARRAY" ...
    "JSON_ARRAYAGG" ...
    "JSON_EXISTS" ...
    "JSON_OBJECT" ...
    "JSON_OBJECTAGG" ...
    "JSON_QUERY" ...
    "JSON_VALUE" ...
    "LAG" ...
    "LAST_VALUE" ...
    "LEAD" ...
    "LEFT" ...
    "LN" ...
    "LOCALTIME" ...
    "LOCALTIMESTAMP" ...
    "LOWER" ...
    "MATCH_NUMBER" ...
    "MAX" ...
    "MERGE" ...
    "MIN" ...
    "MINUTE" ...
    "MOD" ...
    "MONTH" ...
    "MULTISET" ...
    "NEW" ...
    "NEXT" ...
    "NOT" ...
    "NTH_VALUE" ...
    "NTILE" ...
    "NULL" ...
    "NULLIF" ...
    "OCTET_LENGTH" ...
    "OVERLAY" ...
    "PERCENT_RANK" ...
    "PERIOD" ...
    "POSITION" ...
    "POWER" ...
    "PREV" ...
    "RANK" ...
    "REGR_COUNT" ...
    "REGR_SXX" ...
    "REGR_SYY" ...
    "RESET" ...
    "RIGHT" ...
    "ROW" ...
    "ROW_NUMBER" ...
    "RUNNING" ...
    "SECOND" ...
    "SELECT" ...
    "SESSION_USER" ...
    "SET" ...
    "SPECIFIC" ...
    "SQRT" ...
    "STDDEV_POP" ...
    "STDDEV_SAMP" ...
    "SUBSTRING" ...
    "SUM" ...
    "SYSTEM_USER" ...
    "TABLE" ...
    "TIME" ...
    "TIMESTAMP" ...
    "TRANSLATE" ...
    "TRIM" ...
    "TRUE" ...
    "TRUNCATE" ...
    "UNKNOWN" ...
    "UPDATE" ...
    "UPPER" ...
    "UPSERT" ...
    "USER" ...
    "VALUES" ...
    "VAR_POP" ...
    "VAR_SAMP" ...
    "WITH" ...
    "YEAR" ...
    <UNSIGNED_INTEGER_LITERAL> ...
    <APPROX_NUMERIC_LITERAL> ...
    <DECIMAL_NUMERIC_LITERAL> ...
    <BINARY_STRING_LITERAL> ...
    <QUOTED_STRING> ...
    <PREFIXED_STRING_LITERAL> ...
    <UNICODE_STRING_LITERAL> ...
    "(" ...
    <LBRACE_D> ...
    <LBRACE_T> ...
    <LBRACE_TS> ...
    <LBRACE_FN> ...
    "?" ...
    "+" ...
    "-" ...
    <BRACKET_QUOTED_IDENTIFIER> ...
    <QUOTED_IDENTIFIER> ...
    <BACK_QUOTED_IDENTIFIER> ...
    <IDENTIFIER> ...
    <UNICODE_QUOTED_IDENTIFIER> ...
    
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.convertException(SqlParserImpl.java:343)
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.normalizeException(SqlParserImpl.java:142)
	at org.apache.calcite.sql.parser.SqlParser.handleException(SqlParser.java:147)
	at org.apache.calcite.sql.parser.SqlParser.parseStmtList(SqlParser.java:202)
	at com.dj.ParseFlinkSql.main(ParseFlinkSql.java:93)
Caused by: org.apache.calcite.sql.parser.impl.ParseException: Encountered "show" at line 1, column 1.
Was expecting one of:
    "ABS" ...
    "ALTER" ...
    "ARRAY" ...
    "AVG" ...
    "CALL" ...
    "CARDINALITY" ...
    "CASE" ...
    "CAST" ...
    "CEIL" ...
    "CEILING" ...
    "CHAR_LENGTH" ...
    "CHARACTER_LENGTH" ...
    "CLASSIFIER" ...
    "COALESCE" ...
    "COLLECT" ...
    "CONVERT" ...
    "COUNT" ...
    "COVAR_POP" ...
    "COVAR_SAMP" ...
    "CUME_DIST" ...
    "CURRENT" ...
    "CURRENT_CATALOG" ...
    "CURRENT_DATE" ...
    "CURRENT_DEFAULT_TRANSFORM_GROUP" ...
    "CURRENT_PATH" ...
    "CURRENT_ROLE" ...
    "CURRENT_SCHEMA" ...
    "CURRENT_TIME" ...
    "CURRENT_TIMESTAMP" ...
    "CURRENT_USER" ...
    "CURSOR" ...
    "DATE" ...
    "DELETE" ...
    "DENSE_RANK" ...
    "DESCRIBE" ...
    "ELEMENT" ...
    "EXISTS" ...
    "EXP" ...
    "EXPLAIN" ...
    "EXTRACT" ...
    "FALSE" ...
    "FIRST_VALUE" ...
    "FLOOR" ...
    "FUSION" ...
    "GROUPING" ...
    "HOUR" ...
    "INSERT" ...
    "INTERVAL" ...
    "JSON_ARRAY" ...
    "JSON_ARRAYAGG" ...
    "JSON_EXISTS" ...
    "JSON_OBJECT" ...
    "JSON_OBJECTAGG" ...
    "JSON_QUERY" ...
    "JSON_VALUE" ...
    "LAG" ...
    "LAST_VALUE" ...
    "LEAD" ...
    "LEFT" ...
    "LN" ...
    "LOCALTIME" ...
    "LOCALTIMESTAMP" ...
    "LOWER" ...
    "MATCH_NUMBER" ...
    "MAX" ...
    "MERGE" ...
    "MIN" ...
    "MINUTE" ...
    "MOD" ...
    "MONTH" ...
    "MULTISET" ...
    "NEW" ...
    "NEXT" ...
    "NOT" ...
    "NTH_VALUE" ...
    "NTILE" ...
    "NULL" ...
    "NULLIF" ...
    "OCTET_LENGTH" ...
    "OVERLAY" ...
    "PERCENT_RANK" ...
    "PERIOD" ...
    "POSITION" ...
    "POWER" ...
    "PREV" ...
    "RANK" ...
    "REGR_COUNT" ...
    "REGR_SXX" ...
    "REGR_SYY" ...
    "RESET" ...
    "RIGHT" ...
    "ROW" ...
    "ROW_NUMBER" ...
    "RUNNING" ...
    "SECOND" ...
    "SELECT" ...
    "SESSION_USER" ...
    "SET" ...
    "SPECIFIC" ...
    "SQRT" ...
    "STDDEV_POP" ...
    "STDDEV_SAMP" ...
    "SUBSTRING" ...
    "SUM" ...
    "SYSTEM_USER" ...
    "TABLE" ...
    "TIME" ...
    "TIMESTAMP" ...
    "TRANSLATE" ...
    "TRIM" ...
    "TRUE" ...
    "TRUNCATE" ...
    "UNKNOWN" ...
    "UPDATE" ...
    "UPPER" ...
    "UPSERT" ...
    "USER" ...
    "VALUES" ...
    "VAR_POP" ...
    "VAR_SAMP" ...
    "WITH" ...
    "YEAR" ...
    <UNSIGNED_INTEGER_LITERAL> ...
    <APPROX_NUMERIC_LITERAL> ...
    <DECIMAL_NUMERIC_LITERAL> ...
    <BINARY_STRING_LITERAL> ...
    <QUOTED_STRING> ...
    <PREFIXED_STRING_LITERAL> ...
    <UNICODE_STRING_LITERAL> ...
    "(" ...
    <LBRACE_D> ...
    <LBRACE_T> ...
    <LBRACE_TS> ...
    <LBRACE_FN> ...
    "?" ...
    "+" ...
    "-" ...
    <BRACKET_QUOTED_IDENTIFIER> ...
    <QUOTED_IDENTIFIER> ...
    <BACK_QUOTED_IDENTIFIER> ...
    <IDENTIFIER> ...
    <UNICODE_QUOTED_IDENTIFIER> ...
    
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.generateParseException(SqlParserImpl.java:30551)
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.jj_consume_token(SqlParserImpl.java:30368)
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.SqlStmt(SqlParserImpl.java:3578)
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.SqlStmtList(SqlParserImpl.java:2633)
	at org.apache.calcite.sql.parser.impl.SqlParserImpl.parseSqlStmtList(SqlParserImpl.java:193)
	at org.apache.calcite.sql.parser.SqlParser.parseStmtList(SqlParser.java:200)
	... 1 more

Process finished with exit code 0