<span class="hljs-comment">-- clauses</span>

<span class="hljs-keyword">ADD</span>, <span class="hljs-keyword">ADD</span> <span class="hljs-keyword">COLUMN</span>,
<span class="hljs-keyword">ALTER</span>,
<span class="hljs-keyword">DROP</span>, <span class="hljs-keyword">DROP</span> <span class="hljs-keyword">COLUMN</span>,
<span class="hljs-keyword">SET</span>, <span class="hljs-keyword">SET</span> ( .. ),
<span class="hljs-keyword">ON</span>,
    <span class="hljs-keyword">ACCESS</span> <span class="hljs-keyword">METHOD</span>,
    <span class="hljs-keyword">AGGREGATE</span>,
    <span class="hljs-keyword">ATTRIBUTE</span>,
    <span class="hljs-keyword">CASCADE</span>,
    <span class="hljs-keyword">COLLATION</span>,
    <span class="hljs-keyword">COLUMN</span>,
    <span class="hljs-keyword">CONFLICT</span>,
    <span class="hljs-keyword">CONSTRAINT</span>,
    <span class="hljs-keyword">CONVERSION</span>,
    <span class="hljs-keyword">DATABASE</span>,
    <span class="hljs-keyword">DEFAULT</span>,
    <span class="hljs-keyword">DOMAIN</span>,
    <span class="hljs-keyword">EVENT TRIGGER</span>,
    <span class="hljs-keyword">EXTENSION</span>,
    <span class="hljs-keyword">EVENT TRIGGER</span>,
    <span class="hljs-keyword">FOREIGN DATA</span> <span class="hljs-keyword">WRAPPER</span>,
    <span class="hljs-keyword">FOREIGN</span> <span class="hljs-keyword">TABLE</span>,
    <span class="hljs-keyword">FROM</span> <span class="hljs-keyword">CURRENT</span>,
    <span class="hljs-keyword">FUNCTION</span>,
    <span class="hljs-keyword">IDENTITY</span>,
    <span class="hljs-keyword">INDEX</span>,
    <span class="hljs-keyword">ISOLATION</span> <span class="hljs-keyword">LEVEL</span> <span class="hljs-keyword">SERIALIZABLE</span>, <span class="hljs-keyword">ISOLATION</span> <span class="hljs-keyword">LEVEL</span> <span class="hljs-keyword">REPEATABLE</span> <span class="hljs-keyword">READ</span>,
        <span class="hljs-keyword">ISOLATION</span> <span class="hljs-keyword">LEVEL</span> <span class="hljs-keyword">READ</span> <span class="hljs-keyword">COMMITTED</span>, <span class="hljs-keyword">ISOLATION</span> <span class="hljs-keyword">LEVEL</span> <span class="hljs-keyword">READ</span> <span class="hljs-keyword">UNCOMMITTED</span>,
    <span class="hljs-keyword">LARGE</span> <span class="hljs-keyword">OBJECT</span>,
    <span class="hljs-keyword">LOGGED</span>, <span class="hljs-keyword">UNLOGGED</span>,
    <span class="hljs-keyword">MAPPING</span> <span class="hljs-keyword">FOR</span> .. <span class="hljs-keyword">WITH</span> .., <span class="hljs-keyword">MAPPING REPLACE</span> .. <span class="hljs-keyword">WITH</span> .., 
    <span class="hljs-keyword">MATERIALIZED</span> <span class="hljs-keyword">VIEW</span>,
    <span class="hljs-keyword">NOT</span> <span class="hljs-keyword">VALID</span>,
    <span class="hljs-keyword">OPERATOR</span>,
    <span class="hljs-keyword">OPERATOR</span> <span class="hljs-keyword">CLASS</span> .. <span class="hljs-keyword">USING</span> ..,
    <span class="hljs-keyword">OPERATOR</span> <span class="hljs-keyword">FAMILY</span> .. <span class="hljs-keyword">USING</span> ..,
    <span class="hljs-keyword">POLICY</span>,
    <span class="hljs-keyword">PROCEDURAL</span> <span class="hljs-keyword">LANGUAGE</span>,
    <span class="hljs-keyword">PROCEDURE</span>,
    <span class="hljs-keyword">PUBLICATION</span>,
    <span class="hljs-keyword">READ</span> <span class="hljs-keyword">WRITE</span>, <span class="hljs-keyword">READ</span> <span class="hljs-keyword">ONLY</span>,
    <span class="hljs-keyword">RESTRICT</span>,
    <span class="hljs-keyword">ROLE</span>,
    <span class="hljs-keyword">ROUTINE</span>,
    <span class="hljs-keyword">RULE</span>,
    <span class="hljs-keyword">SCHEMA</span>,
    <span class="hljs-keyword">SEQUENCE</span>,
    <span class="hljs-keyword">SERVER</span>,
    <span class="hljs-keyword">STATISTICS</span>,
    <span class="hljs-keyword">STORAGE PLAIN</span>, <span class="hljs-keyword">STORAGE EXTERNAL</span>, <span class="hljs-keyword">STORAGE EXTENDED</span>, <span class="hljs-keyword">STORAGE MAIN</span>,
    <span class="hljs-keyword">SUBSCRIPTION</span>,
    <span class="hljs-keyword">TABLE</span>,
    <span class="hljs-keyword">TABLESPACE</span>,
    <span class="hljs-keyword">TEXT SEARCH</span> <span class="hljs-keyword">CONFIGURATION</span>,
    <span class="hljs-keyword">TEXT SEARCH</span> <span class="hljs-keyword">DICTIONARY</span>,
    <span class="hljs-keyword">TEXT SEARCH</span> <span class="hljs-keyword">PARSER</span>,
    <span class="hljs-keyword">TEXT SEARCH</span> <span class="hljs-keyword">TEMPLATE</span>,
    <span class="hljs-keyword">TRANSFORM</span> <span class="hljs-keyword">FOR</span> .. <span class="hljs-keyword">LANGUAGE</span> <span class="hljs-keyword">SQL</span>,
    <span class="hljs-keyword">TRIGGER</span>,
    <span class="hljs-keyword">TYPE</span>,
    <span class="hljs-keyword">VALUE</span>,
    <span class="hljs-keyword">VIEW</span>,
    <span class="hljs-keyword">WITH</span> <span class="hljs-keyword">OIDS</span>, <span class="hljs-keyword">WITHOUT</span> <span class="hljs-keyword">OIDS</span>,
    <span class="hljs-keyword">WITHOUT</span> <span class="hljs-keyword">CLUSTER</span>,
<span class="hljs-keyword">SET DATA</span> <span class="hljs-keyword">TYPE</span>;