Tweak placement of explicit ANALYZE commands in the regression tests.

Make the COPY test, which loads most of the large static tables used in
the tests, also explicitly ANALYZE those tables.  This allows us to get
rid of various ad-hoc, and rather redundant, ANALYZE commands that had
gotten stuck into various test scripts over time to ensure we got
consistent plan choices.  (We could have done a database-wide ANALYZE,
but that would cause stats to get attached to the small static tables
too, which results in plan changes compared to the historical behavior.
I'm not sure that's a good idea, so not going that far for now.)

Back-patch to 9.0, since 9.0 and 9.1 are currently sometimes failing
regression tests for lack of an "ANALYZE tenk1" in the subselect test.
There's no need for this in 8.4 since we didn't print any plans back
then.

src/test/regress/expected/aggregates.out

@@ -506,7 +506,6 @@ FROM bool_test;
 -- Test cases that should be optimized into indexscans instead of
 -- the generic aggregate implementation.
 --
-analyze tenk1;		-- ensure we get consistent plans here
 -- Basic cases
 explain (costs off)
   select min(unique1) from tenk1;

src/test/regress/expected/alter_table.out

@@ -140,7 +140,6 @@ ALTER INDEX tmp_onek_unique1 RENAME TO onek_unique1;
 CREATE VIEW tmp_view (unique1) AS SELECT unique1 FROM tenk1;
 ALTER TABLE tmp_view RENAME TO tmp_view_new;
 -- hack to ensure we get an indexscan here
-ANALYZE tenk1;
 set enable_seqscan to off;
 set enable_bitmapscan to off;
 -- 5 values, sorted

src/test/regress/expected/arrays.out

@@ -421,7 +421,6 @@ SELECT 0 || ARRAY[1,2] || 3 AS "{0,1,2,3}";
  {0,1,2,3}
 (1 row)
 
-ANALYZE array_op_test;
 SELECT * FROM array_op_test WHERE i @> '{32}' ORDER BY seqno;
  seqno |                i                |                                                                 t                                                                  
 -------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------

src/test/regress/expected/create_index.out

@@ -2715,7 +2715,7 @@ SELECT count(*) FROM dupindexcols
 --
 -- Check ordering of =ANY indexqual results (bug in 9.2.0)
 --
-vacuum analyze tenk1;		-- ensure we get consistent plans here
+vacuum tenk1;		-- ensure we get consistent plans here
 explain (costs off)
 SELECT unique1 FROM tenk1
 WHERE unique1 IN (1,42,7)

src/test/regress/expected/join.out

@@ -2129,7 +2129,6 @@ on (x1 = xx1) where (xx2 is not null);
 -- regression test: check for bug with propagation of implied equality
 -- to outside an IN
 --
-analyze tenk1;		-- ensure we get consistent plans here
 select count(*) from tenk1 a where unique1 in
   (select unique1 from tenk1 b join tenk1 c using (unique1)
    where b.unique2 = 42);

src/test/regress/input/copy.source

@@ -60,6 +60,31 @@ COPY array_op_test FROM '@abs_srcdir@/data/array.data';
 
 COPY array_index_op_test FROM '@abs_srcdir@/data/array.data';
 
+-- analyze all the data we just loaded, to ensure plan consistency
+-- in later tests
+
+ANALYZE aggtest;
+ANALYZE onek;
+ANALYZE tenk1;
+ANALYZE slow_emp4000;
+ANALYZE person;
+ANALYZE emp;
+ANALYZE student;
+ANALYZE stud_emp;
+ANALYZE road;
+ANALYZE real_city;
+ANALYZE hash_i4_heap;
+ANALYZE hash_name_heap;
+ANALYZE hash_txt_heap;
+ANALYZE hash_f8_heap;
+ANALYZE test_tsvector;
+ANALYZE bt_i4_heap;
+ANALYZE bt_name_heap;
+ANALYZE bt_txt_heap;
+ANALYZE bt_f8_heap;
+ANALYZE array_op_test;
+ANALYZE array_index_op_test;
+
 --- test copying in CSV mode with various styles
 --- of embedded line ending characters
 

src/test/regress/output/copy.source

@@ -34,6 +34,29 @@ COPY bt_txt_heap FROM '@abs_srcdir@/data/desc.data';
 COPY bt_f8_heap FROM '@abs_srcdir@/data/hash.data';
 COPY array_op_test FROM '@abs_srcdir@/data/array.data';
 COPY array_index_op_test FROM '@abs_srcdir@/data/array.data';
+-- analyze all the data we just loaded, to ensure plan consistency
+-- in later tests
+ANALYZE aggtest;
+ANALYZE onek;
+ANALYZE tenk1;
+ANALYZE slow_emp4000;
+ANALYZE person;
+ANALYZE emp;
+ANALYZE student;
+ANALYZE stud_emp;
+ANALYZE road;
+ANALYZE real_city;
+ANALYZE hash_i4_heap;
+ANALYZE hash_name_heap;
+ANALYZE hash_txt_heap;
+ANALYZE hash_f8_heap;
+ANALYZE test_tsvector;
+ANALYZE bt_i4_heap;
+ANALYZE bt_name_heap;
+ANALYZE bt_txt_heap;
+ANALYZE bt_f8_heap;
+ANALYZE array_op_test;
+ANALYZE array_index_op_test;
 --- test copying in CSV mode with various styles
 --- of embedded line ending characters
 create temp table copytest (

src/test/regress/sql/aggregates.sql

@@ -220,7 +220,6 @@ FROM bool_test;
 -- Test cases that should be optimized into indexscans instead of
 -- the generic aggregate implementation.
 --
-analyze tenk1;		-- ensure we get consistent plans here
 
 -- Basic cases
 explain (costs off)

src/test/regress/sql/alter_table.sql

@@ -178,7 +178,6 @@ CREATE VIEW tmp_view (unique1) AS SELECT unique1 FROM tenk1;
 ALTER TABLE tmp_view RENAME TO tmp_view_new;
 
 -- hack to ensure we get an indexscan here
-ANALYZE tenk1;
 set enable_seqscan to off;
 set enable_bitmapscan to off;
 -- 5 values, sorted

src/test/regress/sql/arrays.sql

@@ -196,8 +196,6 @@ SELECT ARRAY[[1,2],[3,4]] || ARRAY[5,6] AS "{{1,2},{3,4},{5,6}}";
 SELECT ARRAY[0,0] || ARRAY[1,1] || ARRAY[2,2] AS "{0,0,1,1,2,2}";
 SELECT 0 || ARRAY[1,2] || 3 AS "{0,1,2,3}";
 
-ANALYZE array_op_test;
-
 SELECT * FROM array_op_test WHERE i @> '{32}' ORDER BY seqno;
 SELECT * FROM array_op_test WHERE i && '{32}' ORDER BY seqno;
 SELECT * FROM array_op_test WHERE i @> '{17}' ORDER BY seqno;

src/test/regress/sql/create_index.sql

@@ -898,7 +898,7 @@ SELECT count(*) FROM dupindexcols
 -- Check ordering of =ANY indexqual results (bug in 9.2.0)
 --
 
-vacuum analyze tenk1;		-- ensure we get consistent plans here
+vacuum tenk1;		-- ensure we get consistent plans here
 
 explain (costs off)
 SELECT unique1 FROM tenk1

src/test/regress/sql/join.sql

@@ -330,8 +330,6 @@ on (x1 = xx1) where (xx2 is not null);
 -- regression test: check for bug with propagation of implied equality
 -- to outside an IN
 --
-analyze tenk1;		-- ensure we get consistent plans here
-
 select count(*) from tenk1 a where unique1 in
   (select unique1 from tenk1 b join tenk1 c using (unique1)
    where b.unique2 = 42);