[PATCH v2 6/7] Row pattern recognition patch (tests).

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From: Tatsuo Ishii <[email protected]>
Subject: [PATCH v2 6/7] Row pattern recognition patch (tests).
Date: Mon, 26 Jun 2023 17:05:35 +0900

---
 src/test/regress/expected/rpr.out  | 296 +++++++++++++++++++++++++++++
 src/test/regress/parallel_schedule |   2 +-
 src/test/regress/sql/rpr.sql       | 153 +++++++++++++++
 3 files changed, 450 insertions(+), 1 deletion(-)
 create mode 100644 src/test/regress/expected/rpr.out
 create mode 100644 src/test/regress/sql/rpr.sql

diff --git a/src/test/regress/expected/rpr.out b/src/test/regress/expected/rpr.out
new file mode 100644
index 0000000000..6bf8818911
--- /dev/null
+++ b/src/test/regress/expected/rpr.out
@@ -0,0 +1,296 @@
+--
+-- Test for row pattern definition clause
+--
+CREATE TEMP TABLE stock (
+       company TEXT,
+       tdate DATE,
+       price INTEGER
+       	       );
+INSERT INTO stock VALUES ('company1', '2023-07-01', 100);
+INSERT INTO stock VALUES ('company1', '2023-07-02', 200);
+INSERT INTO stock VALUES ('company1', '2023-07-03', 150);
+INSERT INTO stock VALUES ('company1', '2023-07-04', 140);
+INSERT INTO stock VALUES ('company1', '2023-07-05', 150);
+INSERT INTO stock VALUES ('company1', '2023-07-06', 90);
+INSERT INTO stock VALUES ('company1', '2023-07-07', 110);
+INSERT INTO stock VALUES ('company1', '2023-07-08', 130);
+INSERT INTO stock VALUES ('company1', '2023-07-09', 120);
+INSERT INTO stock VALUES ('company1', '2023-07-10', 130);
+INSERT INTO stock VALUES ('company2', '2023-07-01', 50);
+INSERT INTO stock VALUES ('company2', '2023-07-02', 2000);
+INSERT INTO stock VALUES ('company2', '2023-07-03', 1500);
+INSERT INTO stock VALUES ('company2', '2023-07-04', 1400);
+INSERT INTO stock VALUES ('company2', '2023-07-05', 1500);
+INSERT INTO stock VALUES ('company2', '2023-07-06', 60);
+INSERT INTO stock VALUES ('company2', '2023-07-07', 1100);
+INSERT INTO stock VALUES ('company2', '2023-07-08', 1300);
+INSERT INTO stock VALUES ('company2', '2023-07-09', 1200);
+INSERT INTO stock VALUES ('company2', '2023-07-10', 1300);
+SELECT * FROM stock;
+ company  |   tdate    | price 
+----------+------------+-------
+ company1 | 07-01-2023 |   100
+ company1 | 07-02-2023 |   200
+ company1 | 07-03-2023 |   150
+ company1 | 07-04-2023 |   140
+ company1 | 07-05-2023 |   150
+ company1 | 07-06-2023 |    90
+ company1 | 07-07-2023 |   110
+ company1 | 07-08-2023 |   130
+ company1 | 07-09-2023 |   120
+ company1 | 07-10-2023 |   130
+ company2 | 07-01-2023 |    50
+ company2 | 07-02-2023 |  2000
+ company2 | 07-03-2023 |  1500
+ company2 | 07-04-2023 |  1400
+ company2 | 07-05-2023 |  1500
+ company2 | 07-06-2023 |    60
+ company2 | 07-07-2023 |  1100
+ company2 | 07-08-2023 |  1300
+ company2 | 07-09-2023 |  1200
+ company2 | 07-10-2023 |  1300
+(20 rows)
+
+-- basic test using PREV
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+ company  |   tdate    | price | rpr 
+----------+------------+-------+-----
+ company1 | 07-01-2023 |   100 | 100
+ company1 | 07-02-2023 |   200 |    
+ company1 | 07-03-2023 |   150 |    
+ company1 | 07-04-2023 |   140 |    
+ company1 | 07-05-2023 |   150 |    
+ company1 | 07-06-2023 |    90 |  90
+ company1 | 07-07-2023 |   110 |    
+ company1 | 07-08-2023 |   130 |    
+ company1 | 07-09-2023 |   120 |    
+ company1 | 07-10-2023 |   130 |    
+ company2 | 07-01-2023 |    50 |  50
+ company2 | 07-02-2023 |  2000 |    
+ company2 | 07-03-2023 |  1500 |    
+ company2 | 07-04-2023 |  1400 |    
+ company2 | 07-05-2023 |  1500 |    
+ company2 | 07-06-2023 |    60 |  60
+ company2 | 07-07-2023 |  1100 |    
+ company2 | 07-08-2023 |  1300 |    
+ company2 | 07-09-2023 |  1200 |    
+ company2 | 07-10-2023 |  1300 |    
+(20 rows)
+
+-- the first row start with less than or equal to 100
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price <= 100,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+ company  |   tdate    | price | rpr 
+----------+------------+-------+-----
+ company1 | 07-01-2023 |   100 | 100
+ company1 | 07-02-2023 |   200 |    
+ company1 | 07-03-2023 |   150 |    
+ company1 | 07-04-2023 |   140 |    
+ company1 | 07-05-2023 |   150 |    
+ company1 | 07-06-2023 |    90 |  90
+ company1 | 07-07-2023 |   110 |    
+ company1 | 07-08-2023 |   130 |    
+ company1 | 07-09-2023 |   120 |    
+ company1 | 07-10-2023 |   130 |    
+ company2 | 07-01-2023 |    50 |  50
+ company2 | 07-02-2023 |  2000 |    
+ company2 | 07-03-2023 |  1500 |    
+ company2 | 07-04-2023 |  1400 |    
+ company2 | 07-05-2023 |  1500 |    
+ company2 | 07-06-2023 |    60 |  60
+ company2 | 07-07-2023 |  1100 |    
+ company2 | 07-08-2023 |  1300 |    
+ company2 | 07-09-2023 |  1200 |    
+ company2 | 07-10-2023 |  1300 |    
+(20 rows)
+
+-- second row raises 120%
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price <= 100,
+  UP AS price > PREV(price) * 1.2,
+  DOWN AS price < PREV(price)
+);
+ company  |   tdate    | price | rpr 
+----------+------------+-------+-----
+ company1 | 07-01-2023 |   100 | 100
+ company1 | 07-02-2023 |   200 |    
+ company1 | 07-03-2023 |   150 |    
+ company1 | 07-04-2023 |   140 |    
+ company1 | 07-05-2023 |   150 |    
+ company1 | 07-06-2023 |    90 |    
+ company1 | 07-07-2023 |   110 |    
+ company1 | 07-08-2023 |   130 |    
+ company1 | 07-09-2023 |   120 |    
+ company1 | 07-10-2023 |   130 |    
+ company2 | 07-01-2023 |    50 |  50
+ company2 | 07-02-2023 |  2000 |    
+ company2 | 07-03-2023 |  1500 |    
+ company2 | 07-04-2023 |  1400 |    
+ company2 | 07-05-2023 |  1500 |    
+ company2 | 07-06-2023 |    60 |    
+ company2 | 07-07-2023 |  1100 |    
+ company2 | 07-08-2023 |  1300 |    
+ company2 | 07-09-2023 |  1200 |    
+ company2 | 07-10-2023 |  1300 |    
+(20 rows)
+
+-- using NEXT
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UPDOWN)
+ DEFINE
+  START AS TRUE,
+  UPDOWN AS price > PREV(price) AND price > NEXT(price)
+);
+ company  |   tdate    | price | rpr  
+----------+------------+-------+------
+ company1 | 07-01-2023 |   100 |  100
+ company1 | 07-02-2023 |   200 |     
+ company1 | 07-03-2023 |   150 |     
+ company1 | 07-04-2023 |   140 |  140
+ company1 | 07-05-2023 |   150 |     
+ company1 | 07-06-2023 |    90 |     
+ company1 | 07-07-2023 |   110 |  110
+ company1 | 07-08-2023 |   130 |     
+ company1 | 07-09-2023 |   120 |     
+ company1 | 07-10-2023 |   130 |     
+ company2 | 07-01-2023 |    50 |   50
+ company2 | 07-02-2023 |  2000 |     
+ company2 | 07-03-2023 |  1500 |     
+ company2 | 07-04-2023 |  1400 | 1400
+ company2 | 07-05-2023 |  1500 |     
+ company2 | 07-06-2023 |    60 |     
+ company2 | 07-07-2023 |  1100 | 1100
+ company2 | 07-08-2023 |  1300 |     
+ company2 | 07-09-2023 |  1200 |     
+ company2 | 07-10-2023 |  1300 |     
+(20 rows)
+
+-- using AFTER MATCH SKIP TO NEXT ROW
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP TO NEXT ROW
+ INITIAL
+ PATTERN (START UPDOWN)
+ DEFINE
+  START AS TRUE,
+  UPDOWN AS price > PREV(price) AND price > NEXT(price)
+);
+ company  |   tdate    | price | rpr  
+----------+------------+-------+------
+ company1 | 07-01-2023 |   100 |  100
+ company1 | 07-02-2023 |   200 |     
+ company1 | 07-03-2023 |   150 |     
+ company1 | 07-04-2023 |   140 |  140
+ company1 | 07-05-2023 |   150 |     
+ company1 | 07-06-2023 |    90 |     
+ company1 | 07-07-2023 |   110 |  110
+ company1 | 07-08-2023 |   130 |     
+ company1 | 07-09-2023 |   120 |     
+ company1 | 07-10-2023 |   130 |     
+ company2 | 07-01-2023 |    50 |   50
+ company2 | 07-02-2023 |  2000 |     
+ company2 | 07-03-2023 |  1500 |     
+ company2 | 07-04-2023 |  1400 | 1400
+ company2 | 07-05-2023 |  1500 |     
+ company2 | 07-06-2023 |    60 |     
+ company2 | 07-07-2023 |  1100 | 1100
+ company2 | 07-08-2023 |  1300 |     
+ company2 | 07-09-2023 |  1200 |     
+ company2 | 07-10-2023 |  1300 |     
+(20 rows)
+
+--
+-- Error cases
+--
+-- row pattern definition variable name must not appear more than once
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price),
+  UP AS price > PREV(price)
+);
+ERROR:  row pattern definition variable name "up" appears more than once in DEFINE clause
+LINE 9:   UP AS price > PREV(price),
+          ^
+-- pattern variable name must appear in DEFINE
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+ END)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+ERROR:  syntax error at or near "END"
+LINE 6:  PATTERN (START UP+ DOWN+ END)
+                                  ^
+-- FRAME must start at current row when row patttern recognition is used
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+ERROR:  FRAME must start at current row when row patttern recognition is used
+-- SEEK is not supported
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP TO NEXT ROW
+ SEEK
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+ERROR:  SEEK is not supported
+LINE 6:  SEEK
+         ^
+HINT:  Use INITIAL.
diff --git a/src/test/regress/parallel_schedule b/src/test/regress/parallel_schedule
index cf46fa3359..ebb741318a 100644
--- a/src/test/regress/parallel_schedule
+++ b/src/test/regress/parallel_schedule
@@ -98,7 +98,7 @@ test: publication subscription
 # Another group of parallel tests
 # select_views depends on create_view
 # ----------
-test: select_views portals_p2 foreign_key cluster dependency guc bitmapops combocid tsearch tsdicts foreign_data window xmlmap functional_deps advisory_lock indirect_toast equivclass
+test: select_views portals_p2 foreign_key cluster dependency guc bitmapops combocid tsearch tsdicts foreign_data window xmlmap functional_deps advisory_lock indirect_toast equivclass rpr
 
 # ----------
 # Another group of parallel tests (JSON related)
diff --git a/src/test/regress/sql/rpr.sql b/src/test/regress/sql/rpr.sql
new file mode 100644
index 0000000000..951c9abfe9
--- /dev/null
+++ b/src/test/regress/sql/rpr.sql
@@ -0,0 +1,153 @@
+--
+-- Test for row pattern definition clause
+--
+
+CREATE TEMP TABLE stock (
+       company TEXT,
+       tdate DATE,
+       price INTEGER
+       	       );
+INSERT INTO stock VALUES ('company1', '2023-07-01', 100);
+INSERT INTO stock VALUES ('company1', '2023-07-02', 200);
+INSERT INTO stock VALUES ('company1', '2023-07-03', 150);
+INSERT INTO stock VALUES ('company1', '2023-07-04', 140);
+INSERT INTO stock VALUES ('company1', '2023-07-05', 150);
+INSERT INTO stock VALUES ('company1', '2023-07-06', 90);
+INSERT INTO stock VALUES ('company1', '2023-07-07', 110);
+INSERT INTO stock VALUES ('company1', '2023-07-08', 130);
+INSERT INTO stock VALUES ('company1', '2023-07-09', 120);
+INSERT INTO stock VALUES ('company1', '2023-07-10', 130);
+INSERT INTO stock VALUES ('company2', '2023-07-01', 50);
+INSERT INTO stock VALUES ('company2', '2023-07-02', 2000);
+INSERT INTO stock VALUES ('company2', '2023-07-03', 1500);
+INSERT INTO stock VALUES ('company2', '2023-07-04', 1400);
+INSERT INTO stock VALUES ('company2', '2023-07-05', 1500);
+INSERT INTO stock VALUES ('company2', '2023-07-06', 60);
+INSERT INTO stock VALUES ('company2', '2023-07-07', 1100);
+INSERT INTO stock VALUES ('company2', '2023-07-08', 1300);
+INSERT INTO stock VALUES ('company2', '2023-07-09', 1200);
+INSERT INTO stock VALUES ('company2', '2023-07-10', 1300);
+
+SELECT * FROM stock;
+
+-- basic test using PREV
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+
+-- the first row start with less than or equal to 100
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price <= 100,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+
+-- second row raises 120%
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price <= 100,
+  UP AS price > PREV(price) * 1.2,
+  DOWN AS price < PREV(price)
+);
+
+-- using NEXT
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UPDOWN)
+ DEFINE
+  START AS TRUE,
+  UPDOWN AS price > PREV(price) AND price > NEXT(price)
+);
+
+-- using AFTER MATCH SKIP TO NEXT ROW
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP TO NEXT ROW
+ INITIAL
+ PATTERN (START UPDOWN)
+ DEFINE
+  START AS TRUE,
+  UPDOWN AS price > PREV(price) AND price > NEXT(price)
+);
+
+--
+-- Error cases
+--
+
+-- row pattern definition variable name must not appear more than once
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price),
+  UP AS price > PREV(price)
+);
+
+-- pattern variable name must appear in DEFINE
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+ END)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+
+-- FRAME must start at current row when row patttern recognition is used
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+ INITIAL
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
+
+-- SEEK is not supported
+SELECT company, tdate, price, rpr(price) OVER w FROM stock
+ WINDOW w AS (
+ PARTITION BY company
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP TO NEXT ROW
+ SEEK
+ PATTERN (START UP+ DOWN+)
+ DEFINE
+  START AS TRUE,
+  UP AS price > PREV(price),
+  DOWN AS price < PREV(price)
+);
-- 
2.25.1


----Next_Part(Mon_Jun_26_17_45_07_2023_724)----

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