external/sql/storm-sql-core/src/codegen/includes/parserImpls.ftl

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  You under the Apache License, Version 2.0 (the "License"); you may not use
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private void ColumnDef(List<ColumnDefinition> list) :
{
    SqlParserPos pos;
    SqlIdentifier name;
    SqlDataTypeSpec type;
    ColumnConstraint constraint = null;
    SqlMonotonicity monotonicity = SqlMonotonicity.NOT_MONOTONIC;
}
{
    name = SimpleIdentifier() { pos = getPos(); }
    type = DataType()
    [
      <PRIMARY> <KEY>
      [ <ASC>   { monotonicity = SqlMonotonicity.INCREASING; }
      | <DESC>  { monotonicity = SqlMonotonicity.DECREASING; }
      ]
      { constraint = new ColumnConstraint.PrimaryKey(monotonicity, getPos()); }
    ]
    {
        list.add(new ColumnDefinition(name, type, constraint, pos));
    }
}

SqlNodeList ColumnDefinitionList() :
{
    SqlParserPos pos;
    List<ColumnDefinition> list = Lists.newArrayList();
}
{
    <LPAREN> { pos = getPos(); }
    ColumnDef(list)
    ( <COMMA> ColumnDef(list) )*
    <RPAREN> {
        return new SqlNodeList(list, pos.plus(getPos()));
    }
}

/**
 * CREATE EXTERNAL TABLE ( IF NOT EXISTS )?
 *   ( database_name '.' )? table_name ( '(' column_def ( ',' column_def )* ')'
 *   ( STORED AS INPUTFORMAT input_format_classname OUTPUTFORMAT output_format_classname )?
 *   LOCATION location_uri
 *   ( TBLPROPERTIES tbl_properties )?
 *   ( AS select_stmt )
 */
SqlNode SqlCreateTable() :
{
    SqlParserPos pos;
    SqlIdentifier tblName;
    SqlNodeList fieldList;
    SqlNode location;
    SqlNode input_format_class_name = null, output_format_class_name = null;
    SqlNode tbl_properties = null;
    SqlNode select = null;
}
{
    <CREATE> { pos = getPos(); }
    <EXTERNAL> <TABLE>
    tblName = CompoundIdentifier()
    fieldList = ColumnDefinitionList()
    [
      <STORED> <AS>
      <INPUTFORMAT> input_format_class_name = StringLiteral()
      <OUTPUTFORMAT> output_format_class_name = StringLiteral()
    ]
    <LOCATION>
    location = StringLiteral()
    [ <TBLPROPERTIES> tbl_properties = StringLiteral() ]
    [ <AS> select = OrderedQueryOrExpr(ExprContext.ACCEPT_QUERY) ] {
        return new SqlCreateTable(pos, tblName, fieldList,
        input_format_class_name, output_format_class_name, location,
        tbl_properties, select);
    }
}