1 files changed, 124 insertions, 0 deletions
diff --git a/src/test/regress/sql/psql_crosstab.sql b/src/test/regress/sql/psql_crosstab.sql
new file mode 100644
index 0000000..5a45113
--- /dev/null
+++ b/src/test/regress/sql/psql_crosstab.sql
@@ -0,0 +1,124 @@
+--
+-- \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');
+
+-- 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
+ 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" 4 num
+
+-- 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 format year
+
+-- 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 c r
+
+-- 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 c r
+
+-- 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 c r
+
+-- 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
+
+-- refer to columns by quoted names, check downcasing of unquoted name
+SELECT 1 as "22", 2 as b, 3 as "Foo"
+ \crosstabview "22" B "Foo"
+
+-- error: bad column name
+SELECT v,h,c,i FROM ctv_data
+ \crosstabview v h j
+
+-- error: need to quote name
+SELECT 1 as "22", 2 as b, 3 as "Foo"
+ \crosstabview 1 2 Foo
+
+-- error: need to not quote name
+SELECT 1 as "22", 2 as b, 3 as "Foo"
+ \crosstabview 1 "B" "Foo"
+
+-- 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;
+
+-- check error reporting (bug #14476)
+CREATE TABLE ctv_data (x int, y int, v text);
+
+INSERT INTO ctv_data SELECT 1, x, '*' || x FROM generate_series(1,10) x;
+SELECT * FROM ctv_data \crosstabview
+
+INSERT INTO ctv_data VALUES (1, 10, '*'); -- duplicate data to cause error
+SELECT * FROM ctv_data \crosstabview
+
+DROP TABLE ctv_data;