diff --git a/doc/src/sgml/query.sgml b/doc/src/sgml/query.sgml
index 497aae416b..e73e805ec4 100644
--- a/doc/src/sgml/query.sgml
+++ b/doc/src/sgml/query.sgml
@@ -609,11 +609,11 @@ SELECT *
following query:
-SELECT W1.city, W1.temp_lo AS low, W1.temp_hi AS high,
- W2.city, W2.temp_lo AS low, W2.temp_hi AS high
- FROM weather W1, weather W2
- WHERE W1.temp_lo < W2.temp_lo
- AND W1.temp_hi > W2.temp_hi;
+SELECT w1.city, w1.temp_lo AS low, w1.temp_hi AS high,
+ w2.city, w2.temp_lo AS low, w2.temp_hi AS high
+ FROM weather w1, weather w2
+ WHERE w1.temp_lo < w2.temp_lo
+ AND w1.temp_hi > w2.temp_hi;
@@ -624,8 +624,8 @@ SELECT W1.city, W1.temp_lo AS low, W1.temp_hi AS high,
(2 rows)
- Here we have relabeled the weather table as W1 and
- W2 to be able to distinguish the left and right side
+ Here we have relabeled the weather table as w1 and
+ w2 to be able to distinguish the left and right side
of the join. You can also use these kinds of aliases in other
queries to save some typing, e.g.:
diff --git a/src/tutorial/basics.source b/src/tutorial/basics.source
index 9dbd75eb15..fe1cdfde2a 100644
--- a/src/tutorial/basics.source
+++ b/src/tutorial/basics.source
@@ -126,13 +126,13 @@ SELECT *
FROM weather LEFT OUTER JOIN cities ON (weather.city = cities.name);
-- Suppose we want to find all the records that are in the temperature range
--- of other records. W1 and W2 are aliases for weather.
+-- of other records. w1 and w2 are aliases for weather.
-SELECT W1.city, W1.temp_lo, W1.temp_hi,
- W2.city, W2.temp_lo, W2.temp_hi
-FROM weather W1, weather W2
-WHERE W1.temp_lo < W2.temp_lo
- and W1.temp_hi > W2.temp_hi;
+SELECT w1.city, w1.temp_lo, w1.temp_hi,
+ w2.city, w2.temp_lo, w2.temp_hi
+FROM weather w1, weather w2
+WHERE w1.temp_lo < w2.temp_lo
+ and w1.temp_hi > w2.temp_hi;
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