Move \crosstabview regression tests to a separate file

It cannot run in the same parallel group as misc, because it creates a
table which is unpredictably visible in that test.

Per buildfarm member crake.

doc/src/sgml/ref/psql-ref.sgml

@@ -1009,7 +1009,7 @@ testdb=>
         <replaceable class="parameter">colD</replaceable>
         is the output column to project into the grid.  If this is not
         specified and there are exactly three columns in the result set,
-        the column that isn't 
+        the column that isn't
         <replaceable class="parameter">colV</replaceable> nor
         <replaceable class="parameter">colH</replaceable>
         is displayed; if there are more columns, an error is thrown.

src/test/regress/expected/psql.out

@@ -2714,188 +2714,3 @@ NOTICE:  foo
 CONTEXT:  PL/pgSQL function inline_code_block line 3 at RAISE
 ERROR:  bar
 CONTEXT:  PL/pgSQL function inline_code_block line 4 at RAISE
---
--- \crosstabview
---
-CREATE TABLE ctv_data (v, h, c, i, d) AS
-VALUES
-   ('v1','h2','foo', 3, '2015-04-01'::date),
-   ('v2','h1','bar', 3, '2015-01-02'),
-   ('v1','h0','baz', NULL, '2015-07-12'),
-   ('v0','h4','qux', 4, '2015-07-15'),
-   ('v0','h4','dbl', -3, '2014-12-15'),
-   ('v0',NULL,'qux', 5, '2014-07-15'),
-   ('v1','h2','quux',7, '2015-04-04');
--- running \crosstabview after query uses query in buffer
-SELECT v, EXTRACT(year FROM d), count(*)
- FROM ctv_data
- GROUP BY 1, 2
- ORDER BY 1, 2;
- v  | date_part | count 
-----+-----------+-------
- v0 |      2014 |     2
- v0 |      2015 |     1
- v1 |      2015 |     3
- v2 |      2015 |     1
-(4 rows)
-
--- basic usage with 3 columns
- \crosstabview
- v  | 2014 | 2015 
-----+------+------
- v0 |    2 |    1
- v1 |      |    3
- v2 |      |    1
-(3 rows)
-
--- ordered months in horizontal header, quoted column name
-SELECT v, to_char(d, 'Mon') AS "month name", EXTRACT(month FROM d) AS num,
- count(*) FROM ctv_data  GROUP BY 1,2,3 ORDER BY 1
- \crosstabview v "month name":num 4
- v  | Jan | Apr | Jul | Dec 
-----+-----+-----+-----+-----
- v0 |     |     |   2 |   1
- v1 |     |   2 |   1 |    
- v2 |   1 |     |     |    
-(3 rows)
-
--- ordered months in vertical header, ordered years in horizontal header
-SELECT EXTRACT(year FROM d) AS year, to_char(d,'Mon') AS "month name",
-  EXTRACT(month FROM d) AS month,
-  format('sum=%s avg=%s', sum(i), avg(i)::numeric(2,1))
-  FROM ctv_data
-  GROUP BY EXTRACT(year FROM d), to_char(d,'Mon'), EXTRACT(month FROM d)
-ORDER BY month
-\crosstabview "month name" year:year format
- month name |      2014       |      2015      
-------------+-----------------+----------------
- Jan        |                 | sum=3 avg=3.0
- Apr        |                 | sum=10 avg=5.0
- Jul        | sum=5 avg=5.0   | sum=4 avg=4.0
- Dec        | sum=-3 avg=-3.0 | 
-(4 rows)
-
--- combine contents vertically into the same cell (V/H duplicates)
-SELECT v, h, string_agg(c, E'\n') FROM ctv_data GROUP BY v, h ORDER BY 1,2,3
- \crosstabview 1 2 3
- v  | h4  |     | h0  |  h2  | h1  
-----+-----+-----+-----+------+-----
- v0 | qux+| qux |     |      | 
-    | dbl |     |     |      | 
- v1 |     |     | baz | foo +| 
-    |     |     |     | quux | 
- v2 |     |     |     |      | bar
-(3 rows)
-
--- horizontal ASC order from window function
-SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h) AS r
-FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
- \crosstabview v h:r c
- v  | h0  | h1  |  h2  | h4  |     
-----+-----+-----+------+-----+-----
- v0 |     |     |      | qux+| qux
-    |     |     |      | dbl | 
- v1 | baz |     | foo +|     | 
-    |     |     | quux |     | 
- v2 |     | bar |      |     | 
-(3 rows)
-
--- horizontal DESC order from window function
-SELECT v, h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h DESC) AS r
-FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
- \crosstabview v h:r c
- v  |     | h4  |  h2  | h1  | h0  
-----+-----+-----+------+-----+-----
- v0 | qux | qux+|      |     | 
-    |     | dbl |      |     | 
- v1 |     |     | foo +|     | baz
-    |     |     | quux |     | 
- v2 |     |     |      | bar | 
-(3 rows)
-
--- horizontal ASC order from window function, NULLs pushed rightmost
-SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h NULLS LAST) AS r
-FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
- \crosstabview v h:r c
- v  | h0  | h1  |  h2  | h4  |     
-----+-----+-----+------+-----+-----
- v0 |     |     |      | qux+| qux
-    |     |     |      | dbl | 
- v1 | baz |     | foo +|     | 
-    |     |     | quux |     | 
- v2 |     | bar |      |     | 
-(3 rows)
-
--- only null, no column name, 2 columns: error
-SELECT null,null \crosstabview
-The query must return at least two columns to be shown in crosstab
--- only null, no column name, 3 columns: works
-SELECT null,null,null \crosstabview
- ?column? |  
-----------+--
-          | 
-(1 row)
-
--- null display
-\pset null '#null#'
-SELECT v,h, string_agg(i::text, E'\n') AS i FROM ctv_data
-GROUP BY v, h ORDER BY h,v
- \crosstabview v h i
- v  |   h0   | h1 | h2 | h4 | #null# 
-----+--------+----+----+----+--------
- v1 | #null# |    | 3 +|    | 
-    |        |    | 7  |    | 
- v2 |        | 3  |    |    | 
- v0 |        |    |    | 4 +| 5
-    |        |    |    | -3 | 
-(3 rows)
-
-\pset null ''
--- refer to columns by position
-SELECT v,h,string_agg(i::text, E'\n'), string_agg(c, E'\n')
-FROM ctv_data GROUP BY v, h ORDER BY h,v
- \crosstabview 2 1 4
- h  |  v1  | v2  | v0  
-----+------+-----+-----
- h0 | baz  |     | 
- h1 |      | bar | 
- h2 | foo +|     | 
-    | quux |     | 
- h4 |      |     | qux+
-    |      |     | dbl
-    |      |     | qux
-(5 rows)
-
--- refer to columns by positions and names mixed
-SELECT v,h, string_agg(i::text, E'\n') AS i, string_agg(c, E'\n') AS c
-FROM ctv_data GROUP BY v, h ORDER BY h,v
- \crosstabview 1 "h" 4
- v  | h0  | h1  |  h2  | h4  |     
-----+-----+-----+------+-----+-----
- v1 | baz |     | foo +|     | 
-    |     |     | quux |     | 
- v2 |     | bar |      |     | 
- v0 |     |     |      | qux+| qux
-    |     |     |      | dbl | 
-(3 rows)
-
--- error: bad column name
-SELECT v,h,c,i FROM ctv_data
- \crosstabview v h j
-Invalid column name: j
--- error: bad column number
-SELECT v,h,i,c FROM ctv_data
- \crosstabview 2 1 5
-Invalid column number: 5
--- error: same H and V columns
-SELECT v,h,i,c FROM ctv_data
- \crosstabview 2 h 4
-The same column cannot be used for both vertical and horizontal headers
--- error: too many columns
-SELECT a,a,1 FROM generate_series(1,3000) AS a
- \crosstabview
-Maximum number of columns (1600) exceeded
--- error: only one column
-SELECT 1 \crosstabview
-The query must return at least two columns to be shown in crosstab
-DROP TABLE ctv_data;

src/test/regress/expected/psql_crosstab.out

+--
+-- \crosstabview
+--
+CREATE TABLE ctv_data (v, h, c, i, d) AS
+VALUES
+   ('v1','h2','foo', 3, '2015-04-01'::date),
+   ('v2','h1','bar', 3, '2015-01-02'),
+   ('v1','h0','baz', NULL, '2015-07-12'),
+   ('v0','h4','qux', 4, '2015-07-15'),
+   ('v0','h4','dbl', -3, '2014-12-15'),
+   ('v0',NULL,'qux', 5, '2014-07-15'),
+   ('v1','h2','quux',7, '2015-04-04');
+-- running \crosstabview after query uses query in buffer
+SELECT v, EXTRACT(year FROM d), count(*)
+ FROM ctv_data
+ GROUP BY 1, 2
+ ORDER BY 1, 2;
+ v  | date_part | count 
+----+-----------+-------
+ v0 |      2014 |     2
+ v0 |      2015 |     1
+ v1 |      2015 |     3
+ v2 |      2015 |     1
+(4 rows)
+
+-- basic usage with 3 columns
+ \crosstabview
+ v  | 2014 | 2015 
+----+------+------
+ v0 |    2 |    1
+ v1 |      |    3
+ v2 |      |    1
+(3 rows)
+
+-- ordered months in horizontal header, quoted column name
+SELECT v, to_char(d, 'Mon') AS "month name", EXTRACT(month FROM d) AS num,
+ count(*) FROM ctv_data  GROUP BY 1,2,3 ORDER BY 1
+ \crosstabview v "month name":num 4
+ v  | Jan | Apr | Jul | Dec 
+----+-----+-----+-----+-----
+ v0 |     |     |   2 |   1
+ v1 |     |   2 |   1 |    
+ v2 |   1 |     |     |    
+(3 rows)
+
+-- ordered months in vertical header, ordered years in horizontal header
+SELECT EXTRACT(year FROM d) AS year, to_char(d,'Mon') AS "month name",
+  EXTRACT(month FROM d) AS month,
+  format('sum=%s avg=%s', sum(i), avg(i)::numeric(2,1))
+  FROM ctv_data
+  GROUP BY EXTRACT(year FROM d), to_char(d,'Mon'), EXTRACT(month FROM d)
+ORDER BY month
+\crosstabview "month name" year:year format
+ month name |      2014       |      2015      
+------------+-----------------+----------------
+ Jan        |                 | sum=3 avg=3.0
+ Apr        |                 | sum=10 avg=5.0
+ Jul        | sum=5 avg=5.0   | sum=4 avg=4.0
+ Dec        | sum=-3 avg=-3.0 | 
+(4 rows)
+
+-- combine contents vertically into the same cell (V/H duplicates)
+SELECT v, h, string_agg(c, E'\n') FROM ctv_data GROUP BY v, h ORDER BY 1,2,3
+ \crosstabview 1 2 3
+ v  | h4  |     | h0  |  h2  | h1  
+----+-----+-----+-----+------+-----
+ v0 | qux+| qux |     |      | 
+    | dbl |     |     |      | 
+ v1 |     |     | baz | foo +| 
+    |     |     |     | quux | 
+ v2 |     |     |     |      | bar
+(3 rows)
+
+-- horizontal ASC order from window function
+SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h) AS r
+FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
+ \crosstabview v h:r c
+ v  | h0  | h1  |  h2  | h4  |     
+----+-----+-----+------+-----+-----
+ v0 |     |     |      | qux+| qux
+    |     |     |      | dbl | 
+ v1 | baz |     | foo +|     | 
+    |     |     | quux |     | 
+ v2 |     | bar |      |     | 
+(3 rows)
+
+-- horizontal DESC order from window function
+SELECT v, h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h DESC) AS r
+FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
+ \crosstabview v h:r c
+ v  |     | h4  |  h2  | h1  | h0  
+----+-----+-----+------+-----+-----
+ v0 | qux | qux+|      |     | 
+    |     | dbl |      |     | 
+ v1 |     |     | foo +|     | baz
+    |     |     | quux |     | 
+ v2 |     |     |      | bar | 
+(3 rows)
+
+-- horizontal ASC order from window function, NULLs pushed rightmost
+SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h NULLS LAST) AS r
+FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
+ \crosstabview v h:r c
+ v  | h0  | h1  |  h2  | h4  |     
+----+-----+-----+------+-----+-----
+ v0 |     |     |      | qux+| qux
+    |     |     |      | dbl | 
+ v1 | baz |     | foo +|     | 
+    |     |     | quux |     | 
+ v2 |     | bar |      |     | 
+(3 rows)
+
+-- only null, no column name, 2 columns: error
+SELECT null,null \crosstabview
+The query must return at least two columns to be shown in crosstab
+-- only null, no column name, 3 columns: works
+SELECT null,null,null \crosstabview
+ ?column? |  
+----------+--
+          | 
+(1 row)
+
+-- null display
+\pset null '#null#'
+SELECT v,h, string_agg(i::text, E'\n') AS i FROM ctv_data
+GROUP BY v, h ORDER BY h,v
+ \crosstabview v h i
+ v  |   h0   | h1 | h2 | h4 | #null# 
+----+--------+----+----+----+--------
+ v1 | #null# |    | 3 +|    | 
+    |        |    | 7  |    | 
+ v2 |        | 3  |    |    | 
+ v0 |        |    |    | 4 +| 5
+    |        |    |    | -3 | 
+(3 rows)
+
+\pset null ''
+-- refer to columns by position
+SELECT v,h,string_agg(i::text, E'\n'), string_agg(c, E'\n')
+FROM ctv_data GROUP BY v, h ORDER BY h,v
+ \crosstabview 2 1 4
+ h  |  v1  | v2  | v0  
+----+------+-----+-----
+ h0 | baz  |     | 
+ h1 |      | bar | 
+ h2 | foo +|     | 
+    | quux |     | 
+ h4 |      |     | qux+
+    |      |     | dbl
+    |      |     | qux
+(5 rows)
+
+-- refer to columns by positions and names mixed
+SELECT v,h, string_agg(i::text, E'\n') AS i, string_agg(c, E'\n') AS c
+FROM ctv_data GROUP BY v, h ORDER BY h,v
+ \crosstabview 1 "h" 4
+ v  | h0  | h1  |  h2  | h4  |     
+----+-----+-----+------+-----+-----
+ v1 | baz |     | foo +|     | 
+    |     |     | quux |     | 
+ v2 |     | bar |      |     | 
+ v0 |     |     |      | qux+| qux
+    |     |     |      | dbl | 
+(3 rows)
+
+-- error: bad column name
+SELECT v,h,c,i FROM ctv_data
+ \crosstabview v h j
+Invalid column name: j
+-- error: bad column number
+SELECT v,h,i,c FROM ctv_data
+ \crosstabview 2 1 5
+Invalid column number: 5
+-- error: same H and V columns
+SELECT v,h,i,c FROM ctv_data
+ \crosstabview 2 h 4
+The same column cannot be used for both vertical and horizontal headers
+-- error: too many columns
+SELECT a,a,1 FROM generate_series(1,3000) AS a
+ \crosstabview
+Maximum number of columns (1600) exceeded
+-- error: only one column
+SELECT 1 \crosstabview
+The query must return at least two columns to be shown in crosstab
+DROP TABLE ctv_data;

src/test/regress/parallel_schedule

@@ -92,7 +92,7 @@ test: brin gin gist spgist privileges init_privs security_label collate matview
 test: alter_generic alter_operator misc psql async dbsize misc_functions
 
 # rules cannot run concurrently with any test that creates a view
-test: rules
+test: rules psql_crosstab
 
 # ----------
 # Another group of parallel tests

src/test/regress/serial_schedule

@@ -124,6 +124,7 @@ test: async
 test: dbsize
 test: misc_functions
 test: rules
+test: psql_crosstab
 test: select_views
 test: portals_p2
 test: foreign_key

src/test/regress/sql/psql.sql

@@ -379,102 +379,3 @@ begin
   raise notice 'foo';
   raise exception 'bar';
 end $$;
-
---
--- \crosstabview
---
-
-CREATE TABLE ctv_data (v, h, c, i, d) AS
-VALUES
-   ('v1','h2','foo', 3, '2015-04-01'::date),
-   ('v2','h1','bar', 3, '2015-01-02'),
-   ('v1','h0','baz', NULL, '2015-07-12'),
-   ('v0','h4','qux', 4, '2015-07-15'),
-   ('v0','h4','dbl', -3, '2014-12-15'),
-   ('v0',NULL,'qux', 5, '2014-07-15'),
-   ('v1','h2','quux',7, '2015-04-04');
-
--- running \crosstabview after query uses query in buffer
-SELECT v, EXTRACT(year FROM d), count(*)
- FROM ctv_data
- GROUP BY 1, 2
- ORDER BY 1, 2;
--- basic usage with 3 columns
- \crosstabview
-
--- ordered months in horizontal header, quoted column name
-SELECT v, to_char(d, 'Mon') AS "month name", EXTRACT(month FROM d) AS num,
- count(*) FROM ctv_data  GROUP BY 1,2,3 ORDER BY 1
- \crosstabview v "month name":num 4
-
--- ordered months in vertical header, ordered years in horizontal header
-SELECT EXTRACT(year FROM d) AS year, to_char(d,'Mon') AS "month name",
-  EXTRACT(month FROM d) AS month,
-  format('sum=%s avg=%s', sum(i), avg(i)::numeric(2,1))
-  FROM ctv_data
-  GROUP BY EXTRACT(year FROM d), to_char(d,'Mon'), EXTRACT(month FROM d)
-ORDER BY month
-\crosstabview "month name" year:year format
-
--- combine contents vertically into the same cell (V/H duplicates)
-SELECT v, h, string_agg(c, E'\n') FROM ctv_data GROUP BY v, h ORDER BY 1,2,3
- \crosstabview 1 2 3
-
--- horizontal ASC order from window function
-SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h) AS r
-FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
- \crosstabview v h:r c
-
--- horizontal DESC order from window function
-SELECT v, h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h DESC) AS r
-FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
- \crosstabview v h:r c
-
--- horizontal ASC order from window function, NULLs pushed rightmost
-SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h NULLS LAST) AS r
-FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
- \crosstabview v h:r c
-
--- only null, no column name, 2 columns: error
-SELECT null,null \crosstabview
-
--- only null, no column name, 3 columns: works
-SELECT null,null,null \crosstabview
-
--- null display
-\pset null '#null#'
-SELECT v,h, string_agg(i::text, E'\n') AS i FROM ctv_data
-GROUP BY v, h ORDER BY h,v
- \crosstabview v h i
-\pset null ''
-
--- refer to columns by position
-SELECT v,h,string_agg(i::text, E'\n'), string_agg(c, E'\n')
-FROM ctv_data GROUP BY v, h ORDER BY h,v
- \crosstabview 2 1 4
-
--- refer to columns by positions and names mixed
-SELECT v,h, string_agg(i::text, E'\n') AS i, string_agg(c, E'\n') AS c
-FROM ctv_data GROUP BY v, h ORDER BY h,v
- \crosstabview 1 "h" 4
-
--- error: bad column name
-SELECT v,h,c,i FROM ctv_data
- \crosstabview v h j
-
--- error: bad column number
-SELECT v,h,i,c FROM ctv_data
- \crosstabview 2 1 5
-
--- error: same H and V columns
-SELECT v,h,i,c FROM ctv_data
- \crosstabview 2 h 4
-
--- error: too many columns
-SELECT a,a,1 FROM generate_series(1,3000) AS a
- \crosstabview
-
--- error: only one column
-SELECT 1 \crosstabview
-
-DROP TABLE ctv_data;

src/test/regress/sql/psql_crosstab.sql

+--
+-- \crosstabview
+--
+
+CREATE TABLE ctv_data (v, h, c, i, d) AS
+VALUES
+   ('v1','h2','foo', 3, '2015-04-01'::date),
+   ('v2','h1','bar', 3, '2015-01-02'),
+   ('v1','h0','baz', NULL, '2015-07-12'),
+   ('v0','h4','qux', 4, '2015-07-15'),
+   ('v0','h4','dbl', -3, '2014-12-15'),
+   ('v0',NULL,'qux', 5, '2014-07-15'),
+   ('v1','h2','quux',7, '2015-04-04');
+
+-- running \crosstabview after query uses query in buffer
+SELECT v, EXTRACT(year FROM d), count(*)
+ FROM ctv_data
+ GROUP BY 1, 2
+ ORDER BY 1, 2;
+-- basic usage with 3 columns
+ \crosstabview
+
+-- ordered months in horizontal header, quoted column name
+SELECT v, to_char(d, 'Mon') AS "month name", EXTRACT(month FROM d) AS num,
+ count(*) FROM ctv_data  GROUP BY 1,2,3 ORDER BY 1
+ \crosstabview v "month name":num 4
+
+-- ordered months in vertical header, ordered years in horizontal header
+SELECT EXTRACT(year FROM d) AS year, to_char(d,'Mon') AS "month name",
+  EXTRACT(month FROM d) AS month,
+  format('sum=%s avg=%s', sum(i), avg(i)::numeric(2,1))
+  FROM ctv_data
+  GROUP BY EXTRACT(year FROM d), to_char(d,'Mon'), EXTRACT(month FROM d)
+ORDER BY month
+\crosstabview "month name" year:year format
+
+-- combine contents vertically into the same cell (V/H duplicates)
+SELECT v, h, string_agg(c, E'\n') FROM ctv_data GROUP BY v, h ORDER BY 1,2,3
+ \crosstabview 1 2 3
+
+-- horizontal ASC order from window function
+SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h) AS r
+FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
+ \crosstabview v h:r c
+
+-- horizontal DESC order from window function
+SELECT v, h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h DESC) AS r
+FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
+ \crosstabview v h:r c
+
+-- horizontal ASC order from window function, NULLs pushed rightmost
+SELECT v,h, string_agg(c, E'\n') AS c, row_number() OVER(ORDER BY h NULLS LAST) AS r
+FROM ctv_data GROUP BY v, h ORDER BY 1,3,2
+ \crosstabview v h:r c
+
+-- only null, no column name, 2 columns: error
+SELECT null,null \crosstabview
+
+-- only null, no column name, 3 columns: works
+SELECT null,null,null \crosstabview
+
+-- null display
+\pset null '#null#'
+SELECT v,h, string_agg(i::text, E'\n') AS i FROM ctv_data
+GROUP BY v, h ORDER BY h,v
+ \crosstabview v h i
+\pset null ''
+
+-- refer to columns by position
+SELECT v,h,string_agg(i::text, E'\n'), string_agg(c, E'\n')
+FROM ctv_data GROUP BY v, h ORDER BY h,v
+ \crosstabview 2 1 4
+
+-- refer to columns by positions and names mixed
+SELECT v,h, string_agg(i::text, E'\n') AS i, string_agg(c, E'\n') AS c
+FROM ctv_data GROUP BY v, h ORDER BY h,v
+ \crosstabview 1 "h" 4
+
+-- error: bad column name
+SELECT v,h,c,i FROM ctv_data
+ \crosstabview v h j
+
+-- error: bad column number
+SELECT v,h,i,c FROM ctv_data
+ \crosstabview 2 1 5
+
+-- error: same H and V columns
+SELECT v,h,i,c FROM ctv_data
+ \crosstabview 2 h 4
+
+-- error: too many columns
+SELECT a,a,1 FROM generate_series(1,3000) AS a
+ \crosstabview
+
+-- error: only one column
+SELECT 1 \crosstabview
+
+DROP TABLE ctv_data;