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296 lines
7.3 KiB
Plaintext
296 lines
7.3 KiB
Plaintext
# 2013-04-25
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# Test cases for transitive_closure virtual table.
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix closure01
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ifcapable !vtab||!cte { finish_test ; return }
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load_static_extension db closure
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do_execsql_test 1.0 {
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BEGIN;
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CREATE TABLE t1(x INTEGER PRIMARY KEY, y INTEGER);
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WITH RECURSIVE
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cnt(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM cnt LIMIT 131072)
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INSERT INTO t1(x, y) SELECT i, nullif(i,1)/2 FROM cnt;
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CREATE INDEX t1y ON t1(y);
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COMMIT;
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CREATE VIRTUAL TABLE cx
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USING transitive_closure(tablename=t1, idcolumn=x, parentcolumn=y);
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} {}
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# The entire table
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do_timed_execsql_test 1.1 {
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SELECT count(*), depth FROM cx WHERE root=1 GROUP BY depth ORDER BY 1;
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} {/1 0 1 17 2 1 4 2 8 3 16 4 .* 65536 16/}
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do_timed_execsql_test 1.1-cte {
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WITH RECURSIVE
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below(id,depth) AS (
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VALUES(1,0)
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UNION ALL
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SELECT t1.x, below.depth+1
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FROM t1 JOIN below on t1.y=below.id
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)
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SELECT count(*), depth FROM below GROUP BY depth ORDER BY 1;
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} {/1 0 1 17 2 1 4 2 8 3 16 4 .* 65536 16/}
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# descendents of 32768
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do_timed_execsql_test 1.2 {
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SELECT * FROM cx WHERE root=32768 ORDER BY id;
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} {32768 0 65536 1 65537 1 131072 2}
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do_timed_execsql_test 1.2-cte {
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WITH RECURSIVE
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below(id,depth) AS (
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VALUES(32768,0)
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UNION ALL
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SELECT t1.x, below.depth+1
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FROM t1 JOIN below on t1.y=below.id
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WHERE below.depth<2
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)
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SELECT id, depth FROM below ORDER BY id;
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} {32768 0 65536 1 65537 1 131072 2}
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# descendents of 16384
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do_timed_execsql_test 1.3 {
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SELECT * FROM cx WHERE root=16384 AND depth<=2 ORDER BY id;
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} {16384 0 32768 1 32769 1 65536 2 65537 2 65538 2 65539 2}
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do_timed_execsql_test 1.3-cte {
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WITH RECURSIVE
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below(id,depth) AS (
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VALUES(16384,0)
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UNION ALL
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SELECT t1.x, below.depth+1
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FROM t1 JOIN below on t1.y=below.id
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WHERE below.depth<2
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)
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SELECT id, depth FROM below ORDER BY id;
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} {16384 0 32768 1 32769 1 65536 2 65537 2 65538 2 65539 2}
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# children of 16384
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do_execsql_test 1.4 {
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SELECT id, depth, root, tablename, idcolumn, parentcolumn FROM cx
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WHERE root=16384
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AND depth=1
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ORDER BY id;
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} {32768 1 {} t1 x y 32769 1 {} t1 x y}
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# great-grandparent of 16384
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do_timed_execsql_test 1.5 {
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SELECT id, depth, root, tablename, idcolumn, parentcolumn FROM cx
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WHERE root=16384
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AND depth=3
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AND idcolumn='Y'
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AND parentcolumn='X';
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} {2048 3 {} t1 Y X}
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do_timed_execsql_test 1.5-cte {
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WITH RECURSIVE
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above(id,depth) AS (
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VALUES(16384,0)
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UNION ALL
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SELECT t1.y, above.depth+1
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FROM t1 JOIN above ON t1.x=above.id
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WHERE above.depth<3
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)
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SELECT id FROM above WHERE depth=3;
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} {2048}
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# depth<5
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do_timed_execsql_test 1.6 {
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SELECT count(*), depth FROM cx WHERE root=1 AND depth<5
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GROUP BY depth ORDER BY 1;
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} {1 0 2 1 4 2 8 3 16 4}
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do_timed_execsql_test 1.6-cte {
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WITH RECURSIVE
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below(id,depth) AS (
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VALUES(1,0)
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UNION ALL
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SELECT t1.x, below.depth+1
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FROM t1 JOIN below ON t1.y=below.id
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WHERE below.depth<4
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)
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SELECT count(*), depth FROM below GROUP BY depth ORDER BY 1;
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} {1 0 2 1 4 2 8 3 16 4}
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# depth<=5
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do_execsql_test 1.7 {
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SELECT count(*), depth FROM cx WHERE root=1 AND depth<=5
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GROUP BY depth ORDER BY 1;
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} {1 0 2 1 4 2 8 3 16 4 32 5}
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# depth==5
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do_execsql_test 1.8 {
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SELECT count(*), depth FROM cx WHERE root=1 AND depth=5
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GROUP BY depth ORDER BY 1;
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} {32 5}
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# depth BETWEEN 3 AND 5
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do_execsql_test 1.9 {
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SELECT count(*), depth FROM cx WHERE root=1 AND depth BETWEEN 3 AND 5
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GROUP BY depth ORDER BY 1;
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} {8 3 16 4 32 5}
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# depth==5 with min() and max()
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do_timed_execsql_test 1.10 {
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SELECT count(*), min(id), max(id) FROM cx WHERE root=1 AND depth=5;
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} {32 32 63}
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do_timed_execsql_test 1.10-cte {
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WITH RECURSIVE
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below(id,depth) AS (
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VALUES(1,0)
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UNION ALL
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SELECT t1.x, below.depth+1
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FROM t1 JOIN below ON t1.y=below.id
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WHERE below.depth<5
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)
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SELECT count(*), min(id), max(id) FROM below WHERE depth=5;
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} {32 32 63}
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# Create a much smaller table t2 with only 32 elements
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db eval {
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CREATE TABLE t2(x INTEGER PRIMARY KEY, y INTEGER);
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INSERT INTO t2 SELECT x, y FROM t1 WHERE x<32;
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CREATE INDEX t2y ON t2(y);
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CREATE VIRTUAL TABLE c2
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USING transitive_closure(tablename=t2, idcolumn=x, parentcolumn=y);
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}
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# t2 full-table
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do_execsql_test 2.1 {
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SELECT count(*), min(id), max(id) FROM c2 WHERE root=1;
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} {31 1 31}
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# t2 root=10
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do_execsql_test 2.2 {
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SELECT id FROM c2 WHERE root=10;
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} {10 20 21}
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# t2 root=11
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do_execsql_test 2.3 {
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SELECT id FROM c2 WHERE root=12;
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} {12 24 25}
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# t2 root IN [10,12]
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do_execsql_test 2.4 {
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SELECT id FROM c2 WHERE root IN (10,12) ORDER BY id;
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} {10 12 20 21 24 25}
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# t2 root IN [10,12] (sorted)
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do_execsql_test 2.5 {
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SELECT id FROM c2 WHERE root IN (10,12) ORDER BY +id;
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} {10 12 20 21 24 25}
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# t2 c2up from 20
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do_execsql_test 3.0 {
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CREATE VIRTUAL TABLE c2up USING transitive_closure(
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tablename = t2,
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idcolumn = y,
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parentcolumn = x
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);
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SELECT id FROM c2up WHERE root=20;
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} {1 2 5 10 20}
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# cx as c2up
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do_execsql_test 3.1 {
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SELECT id FROM cx
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WHERE root=20
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AND tablename='t2'
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AND idcolumn='y'
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AND parentcolumn='x';
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} {1 2 5 10 20}
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# t2 first cousins of 20
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do_execsql_test 3.2 {
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SELECT DISTINCT id FROM c2
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WHERE root IN (SELECT id FROM c2up
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WHERE root=20 AND depth<=2)
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ORDER BY id;
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} {5 10 11 20 21 22 23}
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# t2 first cousins of 20
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do_execsql_test 3.3 {
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SELECT id FROM c2
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WHERE root=(SELECT id FROM c2up
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WHERE root=20 AND depth=2)
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AND depth=2
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EXCEPT
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SELECT id FROM c2
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WHERE root=(SELECT id FROM c2up
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WHERE root=20 AND depth=1)
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AND depth<=1
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ORDER BY id;
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} {22 23}
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# missing tablename.
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do_test 4.1 {
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catchsql {
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SELECT id FROM cx
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WHERE root=20
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AND tablename='t3'
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AND idcolumn='y'
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AND parentcolumn='x';
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}
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} {1 {no such table: t3}}
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# missing idcolumn
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do_test 4.2 {
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catchsql {
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SELECT id FROM cx
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WHERE root=20
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AND tablename='t2'
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AND idcolumn='xyz'
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AND parentcolumn='x';
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}
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} {1 {no such column: t2.xyz}}
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# missing parentcolumn
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do_test 4.3 {
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catchsql {
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SELECT id FROM cx
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WHERE root=20
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AND tablename='t2'
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AND idcolumn='x'
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AND parentcolumn='pqr';
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}
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} {1 {no such column: t2.pqr}}
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# generic closure
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do_execsql_test 5.1 {
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CREATE VIRTUAL TABLE temp.closure USING transitive_closure;
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SELECT id FROM closure
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WHERE root=1
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AND depth=3
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AND tablename='t1'
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AND idcolumn='x'
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AND parentcolumn='y'
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ORDER BY id;
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} {8 9 10 11 12 13 14 15}
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#-------------------------------------------------------------------------
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# At one point the following join query was causing a malfunction in
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# xBestIndex.
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#
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do_execsql_test 6.0 {
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CREATE TABLE t4 (
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id INTEGER PRIMARY KEY,
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name TEXT NOT NULL,
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parent_id INTEGER
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);
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CREATE VIRTUAL TABLE vt4 USING transitive_closure (
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idcolumn=id, parentcolumn=parent_id, tablename=t4
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);
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}
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do_execsql_test 6.1 {
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SELECT * FROM t4, vt4 WHERE t4.id = vt4.root AND vt4.id=4 AND vt4.depth=2;
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}
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finish_test
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