Make psql_crosstab plans more stable

To achieve this, ANALYZE the data table before querying it, as suggested
by Tom Lane.  On my system, this enables the test to pass with 128 kB of
work_mem (a value with which other tests fail -- so it seems good
enough).

Reported by Michaël Paquier.

diff --git a/src/test/regress/expected/psql_crosstab.out b/src/test/regress/expected/psql_crosstab.out
index a9c20a179b3d98d9d525fb0ddfe4aa7ee2fb7c86..f45e726132679153b7a604d03bde6003a6e48687 100644 (file)
--- a/src/test/regress/expected/psql_crosstab.out
+++ b/src/test/regress/expected/psql_crosstab.out
@@ -10,6 +10,8 @@ VALUES
    ('v0','h4','dbl', -3, '2014-12-15'),
    ('v0',NULL,'qux', 5, '2014-07-15'),
    ('v1','h2','quux',7, '2015-04-04');
+-- make plans more stable
+ANALYZE ctv_data;
 -- running \crosstabview after query uses query in buffer
 SELECT v, EXTRACT(year FROM d), count(*)
  FROM ctv_data

diff --git a/src/test/regress/sql/psql_crosstab.sql b/src/test/regress/sql/psql_crosstab.sql
index 43c959b7209adccc3e82826c6228ff872a1f7d52..dff023876bf9642a8dd8d4fd76b381d513b46b20 100644 (file)
--- a/src/test/regress/sql/psql_crosstab.sql
+++ b/src/test/regress/sql/psql_crosstab.sql
@@ -12,6 +12,9 @@ VALUES
    ('v0',NULL,'qux', 5, '2014-07-15'),
    ('v1','h2','quux',7, '2015-04-04');
 
+-- make plans more stable
+ANALYZE ctv_data;
+
 -- running \crosstabview after query uses query in buffer
 SELECT v, EXTRACT(year FROM d), count(*)
  FROM ctv_data