3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give.
10 #***********************************************************************
11 # This file implements regression tests for SQLite library. The
12 # focus of this file is the MATERIALIZED hint to common table expressions
15 set testdir [file dirname $argv0]
16 source $testdir/tester.tcl
17 set ::testprefix with6
25 WITH c(x) AS (VALUES(0),(1))
26 SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
27 } {000 001 010 011 100 101 110 111}
29 WITH c(x) AS (VALUES(0),(1))
30 SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
34 | `--SCAN 2 CONSTANT ROWS
41 WITH c(x) AS MATERIALIZED (VALUES(0),(1))
42 SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
43 } {000 001 010 011 100 101 110 111}
45 WITH c(x) AS MATERIALIZED (VALUES(0),(1))
46 SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
50 | `--SCAN 2 CONSTANT ROWS
56 # Even though the CTE is not materialized, the self-join optimization
57 # kicks in and does the materialization for us.
60 WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
61 SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
62 } {000 001 010 011 100 101 110 111}
64 WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
65 SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
69 | `--SCAN 2 CONSTANT ROWS
76 WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
77 SELECT c1.x||c2.x||c3.x
78 FROM (SELECT x FROM c LIMIT 5) AS c1,
79 (SELECT x FROM c LIMIT 5) AS c2,
80 (SELECT x FROM c LIMIT 5) AS c3;
81 } {000 001 010 011 100 101 110 111}
83 WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
84 SELECT c1.x||c2.x||c3.x
85 FROM (SELECT x FROM c LIMIT 5) AS c1,
86 (SELECT x FROM c LIMIT 5) AS c2,
87 (SELECT x FROM c LIMIT 5) AS c3;
92 | | `--SCAN 2 CONSTANT ROWS
96 | | `--SCAN 2 CONSTANT ROWS
100 | | `--SCAN 2 CONSTANT ROWS
107 # The (SELECT x FROM c LIMIT N) subqueries get materialized once each.
108 # Show multiple materializations are shown. But there is only one
109 # materialization for c, shown by the "SCAN 2 CONSTANT ROWS" line.
111 do_execsql_test 140 {
112 WITH c(x) AS MATERIALIZED (VALUES(0),(1))
113 SELECT c1.x||c2.x||c3.x
114 FROM (SELECT x FROM c LIMIT 5) AS c1,
115 (SELECT x FROM c LIMIT 6) AS c2,
116 (SELECT x FROM c LIMIT 7) AS c3;
117 } {000 001 010 011 100 101 110 111}
119 WITH c(x) AS MATERIALIZED (VALUES(0),(1))
120 SELECT c1.x||c2.x||c3.x
121 FROM (SELECT x FROM c LIMIT 5) AS c1,
122 (SELECT x FROM c LIMIT 6) AS c2,
123 (SELECT x FROM c LIMIT 7) AS c3;
128 | | `--SCAN 2 CONSTANT ROWS
139 do_execsql_test 150 {
140 WITH c(x) AS (VALUES(0),(1))
141 SELECT c1.x||c2.x||c3.x
142 FROM (SELECT x FROM c LIMIT 5) AS c1,
143 (SELECT x FROM c LIMIT 6) AS c2,
144 (SELECT x FROM c LIMIT 7) AS c3;
145 } {000 001 010 011 100 101 110 111}
147 WITH c(x) AS (VALUES(0),(1))
148 SELECT c1.x||c2.x||c3.x
149 FROM (SELECT x FROM c LIMIT 5) AS c1,
150 (SELECT x FROM c LIMIT 6) AS c2,
151 (SELECT x FROM c LIMIT 7) AS c3;
156 | | `--SCAN 2 CONSTANT ROWS
167 do_execsql_test 160 {
168 WITH c(x) AS (VALUES(0),(1))
169 SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
170 FROM c AS c2 WHERE c2.x<10;
173 WITH c(x) AS (VALUES(0),(1))
174 SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
175 FROM c AS c2 WHERE c2.x<10;
179 | `--SCAN 2 CONSTANT ROWS
181 `--CORRELATED SCALAR SUBQUERY xxxxxx
185 do_execsql_test 170 {
186 WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
187 SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
188 FROM c AS c2 WHERE c2.x<10;
191 WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
192 SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
193 FROM c AS c2 WHERE c2.x<10;
197 | `--SCAN 2 CONSTANT ROWS
199 `--CORRELATED SCALAR SUBQUERY xxxxxx
201 | `--SCAN 2 CONSTANT ROWS
206 do_execsql_test 200 {
208 INSERT INTO t1(x) VALUES(4);
210 WITH c(z) AS (VALUES(4),(5),(6))
211 SELECT c1.z+c2.z*100+t1.x*10000
213 (SELECT z FROM c LIMIT 5) AS c1,
214 (SELECT z FROM c LIMIT 5) AS c2;
215 SELECT y FROM t2 ORDER BY y;
216 } {40404 40405 40406 40504 40505 40506 40604 40605 40606}
217 do_execsql_test 210 {
220 WITH c(z) AS NOT MATERIALIZED (VALUES(4),(5),(6))
221 SELECT c1.z+c2.z*100+t1.x*10000
223 (SELECT z FROM c LIMIT 5) AS c1,
224 (SELECT z FROM c LIMIT 5) AS c2;
225 SELECT y FROM t2 ORDER BY y;
226 } {40404 40405 40406 40504 40505 40506 40604 40605 40606}
228 SELECT y FROM t2 ORDER BY y;
233 | | `--SCAN 3 CONSTANT ROWS
240 `--USE TEMP B-TREE FOR ORDER BY
242 do_execsql_test 220 {
245 WITH c(z) AS MATERIALIZED (VALUES(4),(5),(6))
246 SELECT c1.z+c2.z*100+t1.x*10000
248 (SELECT z FROM c LIMIT 5) AS c1,
249 (SELECT z FROM c LIMIT 5) AS c2;
250 SELECT y FROM t2 ORDER BY y;
251 } {40404 40405 40406 40504 40505 40506 40604 40605 40606}