diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml new file mode 100644 index b5d3d3a..2c6c49c *** a/doc/src/sgml/ref/select.sgml --- b/doc/src/sgml/ref/select.sgml *************** SELECT [ ALL | DISTINCT [ ON ( grouping_element [, ...] ] [ HAVING condition [, ...] ] [ WINDOW window_name AS ( window_definition ) [, ...] ] ! [ { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] select ] [ ORDER BY expression [ ASC | DESC | USING operator ] [ NULLS { FIRST | LAST } ] [, ...] ] [ LIMIT { count | ALL } ] [ OFFSET start [ ROW | ROWS ] ] --- 40,46 ---- [ GROUP BY grouping_element [, ...] ] [ HAVING condition [, ...] ] [ WINDOW window_name AS ( window_definition ) [, ...] ] ! [ { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] limited_select ] [ ORDER BY expression [ ASC | DESC | USING operator ] [ NULLS { FIRST | LAST } ] [, ...] ] [ LIMIT { count | ALL } ] [ OFFSET start [ ROW | ROWS ] ] *************** TABLE [ ONLY ] limited_select is one or + more additional SELECT queries using only clauses + listed above this item. Clauses after this item can only be appended + to the last SELECT, unless parentheses are used. + + + + + Using the operators UNION, INTERSECT, and EXCEPT, the output of more than one SELECT statement can *************** TABLE [ ONLY ] non_recursive_term UNION [ ALL | DISTINCT ] recursive_term where the recursive self-reference must appear on the right-hand ! side of the UNION. Only one recursive self-reference is permitted per query. Recursive data-modifying statements are not supported, but you can use the results of a recursive SELECT query in --- 260,271 ---- SELECT subquery to reference itself by name. Such a subquery must have the form ! non_recursive_term { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] recursive_term where the recursive self-reference must appear on the right-hand ! side of ! UNION/INTERSECT/EXCEPT. ! Only one recursive self-reference is permitted per query. Recursive data-modifying statements are not supported, but you can use the results of a recursive SELECT query in *************** SELECT DISTINCT ON (location) location, *** 1129,1144 **** The UNION clause has this general form: ! select_statement UNION [ ALL | DISTINCT ] select_statement ! select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE, or FOR KEY SHARE clause. ! (ORDER BY and LIMIT can be attached to a ! subexpression if it is enclosed in parentheses. Without ! parentheses, these clauses will be taken to apply to the result of ! the UNION, not to its right-hand input ! expression.) --- 1140,1154 ---- The UNION clause has this general form: ! [ limited_select UNION [ ALL | DISTINCT ] [ ... ] select ! limited_select is any SELECT statement without an ORDER BY, LIMIT, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE, or FOR KEY SHARE clause. ! (ORDER BY and LIMIT can be ! attached if it is enclosed in parentheses.) The final select can contain the clauses listed ! above and those are applied to the result of the UNION. *************** SELECT DISTINCT ON (location) location, *** 1182,1189 **** The INTERSECT clause has this general form: ! select_statement INTERSECT [ ALL | DISTINCT ] select_statement ! select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE, or FOR KEY SHARE clause. --- 1192,1199 ---- The INTERSECT clause has this general form: ! limited_select INTERSECT [ ALL | DISTINCT ] [ ... ] select_statement ! limited_select is any SELECT statement without an ORDER BY, LIMIT, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE, or FOR KEY SHARE clause. *************** SELECT DISTINCT ON (location) location, *** 1230,1237 **** The EXCEPT clause has this general form: ! select_statement EXCEPT [ ALL | DISTINCT ] select_statement ! select_statement is any SELECT statement without an ORDER BY, LIMIT, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE, or FOR KEY SHARE clause. --- 1240,1247 ---- The EXCEPT clause has this general form: ! limited_select EXCEPT [ ALL | DISTINCT ] [ ... ] select_statement ! limited_select is any SELECT statement without an ORDER BY, LIMIT, FOR NO KEY UPDATE, FOR UPDATE, FOR SHARE, or FOR KEY SHARE clause.