Adjust indentation in src/backend/optimizer/README.
The previous indentation of optimizer functions was unclear; adjust the
indentation dashes so that a deeper level of indentation indicates that
the outer optimizer function calls the inner one.
Author: Richard Guo, with additional change by me
Discussion:
@@ -315,7 +315,7 @@ set up for recursive handling of subqueries
preprocess target list for non-SELECT queries
handle UNION/INTERSECT/EXCEPT, GROUP BY, HAVING, aggregates,
ORDER BY, DISTINCT, LIMIT
---query_planner()
+---query_planner()
make list of base relations used in query
split up the qual into restrictions (a=1) and joins (b=c)
find qual clauses that enable merge and hash joins
@@ -325,7 +325,7 @@ set up for recursive handling of subqueries
find selectivity of columns used in joins
make_rel_from_joinlist()
hand off join subproblems to a plugin, GEQO, or standard_join_search()
------standard_join_search()
+------standard_join_search()
call join_search_one_level() for each level of join tree needed
join_search_one_level():
For each joinrel of the prior level, do make_rels_by_clause_joins()
