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Dilip Biswal 4a486d6716 [SPARK-26982][SQL] Enhance describe framework to describe the output of a query. 
## What changes were proposed in this pull request?
Currently we can use `df.printSchema` to discover the schema information for a query. We should have a way to describe the output schema of a query using SQL interface.

Example:

DESCRIBE SELECT * FROM desc_table
DESCRIBE QUERY SELECT * FROM desc_table
```SQL

spark-sql> create table desc_table (c1 int comment 'c1-comment', c2 decimal comment 'c2-comment', c3 string);

spark-sql> desc select * from desc_table;
c1	int	        c1-comment
c2	decimal(10,0)	c2-comment
c3	string	        NULL

```
## How was this patch tested?
Added a new test under SQLQueryTestSuite and SparkSqlParserSuite

Closes #23883 from dilipbiswal/dkb_describe_query.

Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-03-02 11:21:23 +08:00

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---
layout: global
title: SQL Reserved/Non-Reserved Keywords
displayTitle: SQL Reserved/Non-Reserved Keywords
---
In Spark SQL, there are 2 kinds of keywords: non-reserved and reserved. Non-reserved keywords have a
special meaning only in particular contexts and can be used as identifiers (e.g., table names, view names,
column names, column aliases, table aliases) in other contexts. Reserved keywords can't be used as
table alias, but can be used as other identifiers.
The list of reserved and non-reserved keywords can change according to the config
`spark.sql.parser.ansi.enabled`, which is false by default.
<table class="table">
<tr><th rowspan="2" style="vertical-align: middle;"><b>Keyword</b></th><th colspan="2"><b>Spark SQL</b></th><th rowspan="2" style="vertical-align: middle;"><b>SQL-2011</b></th></tr>
<tr><th><b>ANSI mode</b></th><th><b>default mode</b></th></tr>
<tr><td>ABS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ABSOLUTE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ACOS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ACTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ADD</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>AFTER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ALL</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ALLOCATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ALTER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ANALYZE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>AND</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ANTI</td><td>reserved</td><td>reserved</td><td>non-reserved</td></tr>
<tr><td>ANY</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ARE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ARCHIVE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ARRAY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ARRAY_AGG</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ARRAY_MAX_CARDINALITY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>AS</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ASC</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ASENSITIVE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ASIN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ASSERTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ASYMMETRIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>AT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ATAN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ATOMIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>AUTHORIZATION</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>AVG</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BEFORE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>BEGIN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BEGIN_FRAME</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BEGIN_PARTITION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BETWEEN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BIGINT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BINARY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BIT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>BIT_LENGTH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>BLOB</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BOOLEAN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BOTH</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>BREADTH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>BUCKET</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>BUCKETS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>BY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CACHE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CALL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CALLED</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CARDINALITY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CASCADE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CASCADED</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CASE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CAST</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CATALOG</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CEIL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CEILING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CHANGE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CHAR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CHAR_LENGTH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CHARACTER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CHARACTER_LENGTH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CHECK</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CLASSIFIER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CLEAR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CLOB</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CLOSE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CLUSTER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CLUSTERED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COALESCE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CODEGEN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COLLATE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COLLATION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COLLECT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COLLECTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COLUMN</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COLUMNS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COMMENT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COMMIT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COMPACT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COMPACTIONS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COMPUTE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONCATENATE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONDITION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CONNECT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONNECTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONSTRAINT</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CONSTRAINTS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONSTRUCTOR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONTAINS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONTINUE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CONVERT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COPY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>CORR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CORRESPONDING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COSH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COST</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>COUNT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COVAR_POP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>COVAR_SAMP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CREATE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CROSS</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>CUBE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CUME_DIST</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_CATALOG</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_DATE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_DEFAULT_TRANSFORM_GROUP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_PATH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_ROLE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_ROW</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_SCHEMA</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_TIME</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_TIMESTAMP</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_TRANSFORM_GROUP_FOR_TYPE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURRENT_USER</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CURSOR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>CYCLE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DATA</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DATABASE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DATABASES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DAY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DBPROPERTIES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DEALLOCATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DEC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DECFLOAT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DECIMAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DECLARE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DEFAULT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DEFERRABLE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DEFERRED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DEFINE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DEFINED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DELETE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DELIMITED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DENSE_RANK</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DEPTH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DEREF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DESC</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DESCRIBE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>QUERY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DESCRIPTOR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DETERMINISTIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DFS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DIAGNOSTICS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DIRECTORIES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DIRECTORY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DISCONNECT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DISTINCT</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DISTRIBUTE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DIV</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DO</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DOMAIN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>DOUBLE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DROP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>DYNAMIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EACH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ELEMENT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ELSE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ELSEIF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EMPTY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>END</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>END_FRAME</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>END_PARTITION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EQUALS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ESCAPE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ESCAPED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EVERY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EXCEPT</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>EXCEPTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXCHANGE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXEC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EXECUTE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EXISTS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EXIT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXP</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXPLAIN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXPORT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXTENDED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>EXTERNAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>EXTRACT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FALSE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FETCH</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FIELDS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FILEFORMAT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FILTER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FIRST</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FIRST_VALUE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FLOAT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FOLLOWING</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FOR</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FOREIGN</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FORMAT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FORMATTED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FOUND</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FRAME_ROW</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FREE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FROM</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FULL</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>FUNCTION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>FUNCTIONS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>FUSION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>GENERAL</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>GET</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>GLOBAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>GO</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>GOTO</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>GRANT</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>GROUP</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>GROUPING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>GROUPS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>HANDLER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>HAVING</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>HOLD</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>HOUR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>IDENTITY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>IF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>IGNORE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>IMMEDIATE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>IMPORT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>IN</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INDICATOR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INDEX</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INDEXES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INITIAL</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INITIALLY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INNER</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>INOUT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INPATH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INPUT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INPUTFORMAT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>INSENSITIVE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INSERT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INTEGER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INTERSECT</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>INTERSECTION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INTERVAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>INTO</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>IS</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ISOLATION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ITEMS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ITERATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>JOIN</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>JSON_ARRAY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_ARRAYAGG</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_EXISTS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_OBJECT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_OBJECTAGG</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_QUERY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_TABLE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_TABLE_PRIMITIVE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>JSON_VALUE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>KEY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>KEYS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LAG</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LANGUAGE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LARGE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LAST</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LAST_VALUE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LATERAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LAZY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LEAD</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LEADING</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LEAVE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LEFT</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>LEVEL</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LIKE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LIKE_REGEX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LIMIT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LINES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LIST</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LISTAGG</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LOAD</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOCAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LOCALTIME</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LOCALTIMESTAMP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LOCATION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOCATOR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOCK</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOCKS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOG</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOG10</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOGICAL</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>LOOP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>LOWER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MACRO</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>MAP</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>MATCH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MATCH_NUMBER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>MATCH_RECOGNIZE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>MATCHES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>MAX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MEMBER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MERGE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>METHOD</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MIN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MINUS</td><td>reserved</td><td>reserved</td><td>non-reserved</td></tr>
<tr><td>MINUTE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MOD</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MODIFIES</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MODULE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MONTH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>MSCK</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>MULTISET</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NAMES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>NATIONAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NATURAL</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>NCHAR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NCLOB</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NEW</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NEXT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>NO</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NONE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NORMALIZE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NOT</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NTH_VALUE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NTILE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NULL</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NULLS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>NULLIF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>NUMERIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OBJECT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OCCURRENCES_REGEX</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OCTET_LENGTH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OFFSET</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OLD</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OMIT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ON</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>ONE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ONLY</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OPEN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OPTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OPTIONS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OR</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ORDER</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ORDINALITY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OUT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OUTER</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OUTPUT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OUTPUTFORMAT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OVER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>OVERLAPS</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OVERLAY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>OVERWRITE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PAD</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PARAMETER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PARTIAL</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PARTITION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PARTITIONED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PARTITIONS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PATH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PATTERN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PERCENT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PERCENT_RANK</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PERCENTILE_CONT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PERCENTILE_DISC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PERCENTLIT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PERIOD</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PIVOT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PORTION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>POSITION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>POSITION_REGEX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>POWER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PRECEDES</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PRECEDING</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PRECISION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PREPARE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PRESERVE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PRIMARY</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PRINCIPALS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PRIOR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PRIVILEGES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PROCEDURE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>PTF</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PUBLIC</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>PURGE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RANGE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RANK</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>READ</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>READS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RECORDREADER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RECORDWRITER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RECURSIVE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RECOVER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>REDUCE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>REF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REFERENCES</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REFERENCING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REFRESH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>REGR_AVGX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_AVGY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_COUNT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_INTERCEPT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_R2</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_SLOPE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_SXX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_SXY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REGR_SYY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RELATIVE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RELEASE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RENAME</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>REPAIR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>REPEAT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REPLACE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RESET</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RESIGNAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RESTRICT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>RESULT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RETURN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RETURNS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>REVOKE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RIGHT</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>RLIKE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ROLE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ROLES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ROLLBACK</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ROLLUP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ROUTINE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>ROW</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ROW_NUMBER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ROWS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>RUNNING</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SAVEPOINT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SCHEMA</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SCOPE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SCROLL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SEARCH</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SECOND</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SECTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SEEK</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SELECT</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SEMI</td><td>reserved</td><td>reserved</td><td>non-reserved</td></tr>
<tr><td>SENSITIVE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SEPARATED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SERDE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SERDEPROPERTIES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SESSION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SESSION_USER</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SET</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SETS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SHOW</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SIGNAL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SIMILAR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SIN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SINH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SIZE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SKIP</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SKEWED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SMALLINT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SOME</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SORT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SORTED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SPACE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SPECIFIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SPECIFICTYPE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SQL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SQLCODE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SQLERROR</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SQLEXCEPTION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SQLSTATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SQLWARNING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SQRT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>START</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>STATE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>STATIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>STATISTICS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>STDDEV_POP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>STDDEV_SAMP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>STORED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>STRATIFY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>STRUCT</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SUBMULTISET</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SUBSET</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>SUBSTRING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SUBSTRING_REGEX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SUCCEEDS</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SUM</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SYMMETRIC</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SYSTEM</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SYSTEM_TIME</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>SYSTEM_USER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TABLE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TABLES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TABLESAMPLE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TAN</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TANH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TBLPROPERTIES</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TEMPORARY</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TERMINATED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>THEN</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TIME</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TIMESTAMP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TIMEZONE_HOUR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TIMEZONE_MINUTE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TO</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TOUCH</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TRAILING</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRANSACTION</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TRANSACTIONS</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TRANSFORM</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>TRANSLATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRANSLATE_REGEX</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRANSLATION</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TREAT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRIGGER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRIM</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRIM_ARRAY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRUE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>TRUNCATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UESCAPE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UNARCHIVE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>UNBOUNDED</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>UNCACHE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>UNDER</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>UNDO</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UNION</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>UNIQUE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UNKNOWN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UNLOCK</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>UNNEST</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UNSET</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>UNTIL</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UPDATE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>UPPER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>USAGE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>USE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>USER</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>USING</td><td>reserved</td><td>reserved</td><td>reserved</td></tr>
<tr><td>VALUE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VALUES</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VALUE_OF</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VAR_POP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VAR_SAMP</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VARBINARY</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VARCHAR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VARYING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VERSIONING</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>VIEW</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>WHEN</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WHENEVER</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WHERE</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WHILE</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WIDTH_BUCKET</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WINDOW</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WITH</td><td>reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WITHIN</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WITHOUT</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>WORK</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>WRITE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
<tr><td>YEAR</td><td>non-reserved</td><td>non-reserved</td><td>reserved</td></tr>
<tr><td>ZONE</td><td>non-reserved</td><td>non-reserved</td><td>non-reserved</td></tr>
</table>
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