184 lines
6.1 KiB
Plaintext
184 lines
6.1 KiB
Plaintext
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# 2014-03-21
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing that the block-sort optimization.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set ::testprefix orderby6
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# Run all tests twice. Once with a normal table and a second time
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# with a WITHOUT ROWID table
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#
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foreach {tn rowidclause} {1 {} 2 {WITHOUT ROWID}} {
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# Construct a table with 1000 rows and a split primary key
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#
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reset_db
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do_test $tn.1 {
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db eval "CREATE TABLE t1(a,b,c,PRIMARY KEY(b,c)) $rowidclause;"
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db eval {
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WITH RECURSIVE
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cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<1000)
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INSERT INTO t1 SELECT x, x%40, x/40 FROM cnt;
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}
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} {}
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# Run various ORDER BY queries that can benefit from block-sort.
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# Compare the output to the same output using a full-sort enforced
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# by adding + to each term of the ORDER BY clause.
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#
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do_execsql_test $tn.2 {
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SELECT b,a,c FROM t1 ORDER BY b,a,c;
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} [db eval {SELECT b,a,c FROM t1 ORDER BY +b,+a,+c}]
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do_execsql_test $tn.3 {
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SELECT b,a,c FROM t1 ORDER BY b,c DESC,a;
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} [db eval {SELECT b,a,c FROM t1 ORDER BY +b,+c DESC,+a}]
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do_execsql_test $tn.4 {
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SELECT b,a,c FROM t1 ORDER BY b DESC,c,a;
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} [db eval {SELECT b,a,c FROM t1 ORDER BY +b DESC,+c,+a}]
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do_execsql_test $tn.5 {
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SELECT b,a,c FROM t1 ORDER BY b DESC,a,c;
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} [db eval {SELECT b,a,c FROM t1 ORDER BY +b DESC,+a,+c}]
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# LIMIT and OFFSET clauses on block-sort queries.
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#
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do_execsql_test $tn.11 {
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SELECT a FROM t1 ORDER BY b, a LIMIT 10 OFFSET 20;
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} {840 880 920 960 1000 1 41 81 121 161}
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do_execsql_test $tn.11x {
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SELECT a FROM t1 ORDER BY +b, a LIMIT 10 OFFSET 20;
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} {840 880 920 960 1000 1 41 81 121 161}
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do_execsql_test $tn.12 {
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SELECT a FROM t1 ORDER BY b DESC, a LIMIT 10 OFFSET 20;
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} {839 879 919 959 999 38 78 118 158 198}
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do_execsql_test $tn.12 {
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SELECT a FROM t1 ORDER BY +b DESC, a LIMIT 10 OFFSET 20;
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} {839 879 919 959 999 38 78 118 158 198}
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do_execsql_test $tn.13 {
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SELECT a FROM t1 ORDER BY b, a DESC LIMIT 10 OFFSET 45;
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} {161 121 81 41 1 962 922 882 842 802}
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do_execsql_test $tn.13x {
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SELECT a FROM t1 ORDER BY +b, a DESC LIMIT 10 OFFSET 45;
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} {161 121 81 41 1 962 922 882 842 802}
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do_execsql_test $tn.14 {
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SELECT a FROM t1 ORDER BY b DESC, a LIMIT 10 OFFSET 45;
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} {838 878 918 958 998 37 77 117 157 197}
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do_execsql_test $tn.14x {
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SELECT a FROM t1 ORDER BY +b DESC, a LIMIT 10 OFFSET 45;
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} {838 878 918 958 998 37 77 117 157 197}
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# Many test cases where the LIMIT+OFFSET window is in various
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# alignments with block-sort boundaries.
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#
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foreach {tx limit offset orderby} {
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1 10 24 {+b,+a}
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2 10 25 {+b,+a}
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3 10 26 {+b,+a}
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4 10 39 {+b,+a}
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5 10 40 {+b,+a}
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6 10 41 {+b,+a}
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7 27 24 {+b,+a}
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8 27 49 {+b,+a}
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11 10 24 {+b DESC,+a}
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12 10 25 {+b DESC,+a}
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13 10 26 {+b DESC,+a}
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14 10 39 {+b DESC,+a}
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15 10 40 {+b DESC,+a}
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16 10 41 {+b DESC,+a}
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17 27 24 {+b DESC,+a}
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18 27 49 {+b DESC,+a}
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21 10 24 {+b,+a DESC}
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22 10 25 {+b,+a DESC}
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23 10 26 {+b,+a DESC}
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24 10 39 {+b,+a DESC}
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25 10 40 {+b,+a DESC}
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26 10 41 {+b,+a DESC}
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27 27 24 {+b,+a DESC}
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28 27 49 {+b,+a DESC}
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31 10 24 {+b DESC,+a DESC}
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32 10 25 {+b DESC,+a DESC}
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33 10 26 {+b DESC,+a DESC}
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34 10 39 {+b DESC,+a DESC}
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35 10 40 {+b DESC,+a DESC}
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36 10 41 {+b DESC,+a DESC}
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37 27 24 {+b DESC,+a DESC}
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38 27 49 {+b DESC,+a DESC}
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} {
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set sql1 "SELECT a FROM t1 ORDER BY $orderby LIMIT $limit OFFSET $offset;"
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set sql2 [string map {+ {}} $sql1]
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# puts $sql2\n$sql1\n[db eval $sql2]
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do_test $tn.21.$tx {db eval $::sql2} [db eval $sql1]
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}
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########################################################################
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# A second test table, t2, has many columns open to sorting.
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do_test $tn.31 {
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db eval "CREATE TABLE t2(a,b,c,d,e,f,PRIMARY KEY(b,c,d,e,f)) $rowidclause;"
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db eval {
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WITH RECURSIVE
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cnt(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM cnt WHERE x<242)
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INSERT INTO t2 SELECT x, x%3, (x/3)%3, (x/9)%3, (x/27)%3, (x/81)%3
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FROM cnt;
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}
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} {}
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do_execsql_test $tn.32 {
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SELECT a FROM t2 ORDER BY b,c,d,e,f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
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do_execsql_test $tn.33 {
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SELECT a FROM t2 ORDER BY b,c,d,e,+f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
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do_execsql_test $tn.34 {
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SELECT a FROM t2 ORDER BY b,c,d,+e,+f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
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do_execsql_test $tn.35 {
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SELECT a FROM t2 ORDER BY b,c,+d,+e,+f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
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do_execsql_test $tn.36 {
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SELECT a FROM t2 ORDER BY b,+c,+d,+e,+f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
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do_execsql_test $tn.37 {
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SELECT a FROM t2 ORDER BY b,c,d,e,f DESC;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f DESC;}]
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do_execsql_test $tn.38 {
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SELECT a FROM t2 ORDER BY b,c,d,e DESC,f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e DESC,+f;}]
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do_execsql_test $tn.39 {
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SELECT a FROM t2 ORDER BY b,c,d DESC,e,f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d DESC,+e,+f;}]
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do_execsql_test $tn.40 {
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SELECT a FROM t2 ORDER BY b,c DESC,d,e,f;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c DESC,+d,+e,+f;}]
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do_execsql_test $tn.41 {
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SELECT a FROM t2 ORDER BY b DESC,c,d,e,f;
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} [db eval {SELECT a FROM t2 ORDER BY +b DESC,+c,+d,+e,+f;}]
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do_execsql_test $tn.42 {
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SELECT a FROM t2 ORDER BY b DESC,c DESC,d,e,f LIMIT 31;
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} [db eval {SELECT a FROM t2 ORDER BY +b DESC,+c DESC,+d,+e,+f LIMIT 31}]
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do_execsql_test $tn.43 {
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SELECT a FROM t2 ORDER BY b,c,d,e,f DESC LIMIT 8 OFFSET 7;
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} [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f DESC LIMIT 8 OFFSET 7}]
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}
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finish_test
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