# 2014-03-21 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing that the block-sort optimization. # set testdir [file dirname $argv0] source $testdir/tester.tcl set ::testprefix orderby6 # Run all tests twice. Once with a normal table and a second time # with a WITHOUT ROWID table # foreach {tn rowidclause} {1 {} 2 {WITHOUT ROWID}} { # Construct a table with 1000 rows and a split primary key # reset_db do_test $tn.1 { db eval "CREATE TABLE t1(a,b,c,PRIMARY KEY(b,c)) $rowidclause;" db eval { WITH RECURSIVE cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<1000) INSERT INTO t1 SELECT x, x%40, x/40 FROM cnt; } } {} # Run various ORDER BY queries that can benefit from block-sort. # Compare the output to the same output using a full-sort enforced # by adding + to each term of the ORDER BY clause. # do_execsql_test $tn.2 { SELECT b,a,c FROM t1 ORDER BY b,a,c; } [db eval {SELECT b,a,c FROM t1 ORDER BY +b,+a,+c}] do_execsql_test $tn.3 { SELECT b,a,c FROM t1 ORDER BY b,c DESC,a; } [db eval {SELECT b,a,c FROM t1 ORDER BY +b,+c DESC,+a}] do_execsql_test $tn.4 { SELECT b,a,c FROM t1 ORDER BY b DESC,c,a; } [db eval {SELECT b,a,c FROM t1 ORDER BY +b DESC,+c,+a}] do_execsql_test $tn.5 { SELECT b,a,c FROM t1 ORDER BY b DESC,a,c; } [db eval {SELECT b,a,c FROM t1 ORDER BY +b DESC,+a,+c}] # LIMIT and OFFSET clauses on block-sort queries. # do_execsql_test $tn.11 { SELECT a FROM t1 ORDER BY b, a LIMIT 10 OFFSET 20; } {840 880 920 960 1000 1 41 81 121 161} do_execsql_test $tn.11x { SELECT a FROM t1 ORDER BY +b, a LIMIT 10 OFFSET 20; } {840 880 920 960 1000 1 41 81 121 161} do_execsql_test $tn.12 { SELECT a FROM t1 ORDER BY b DESC, a LIMIT 10 OFFSET 20; } {839 879 919 959 999 38 78 118 158 198} do_execsql_test $tn.12 { SELECT a FROM t1 ORDER BY +b DESC, a LIMIT 10 OFFSET 20; } {839 879 919 959 999 38 78 118 158 198} do_execsql_test $tn.13 { SELECT a FROM t1 ORDER BY b, a DESC LIMIT 10 OFFSET 45; } {161 121 81 41 1 962 922 882 842 802} do_execsql_test $tn.13x { SELECT a FROM t1 ORDER BY +b, a DESC LIMIT 10 OFFSET 45; } {161 121 81 41 1 962 922 882 842 802} do_execsql_test $tn.14 { SELECT a FROM t1 ORDER BY b DESC, a LIMIT 10 OFFSET 45; } {838 878 918 958 998 37 77 117 157 197} do_execsql_test $tn.14x { SELECT a FROM t1 ORDER BY +b DESC, a LIMIT 10 OFFSET 45; } {838 878 918 958 998 37 77 117 157 197} # Many test cases where the LIMIT+OFFSET window is in various # alignments with block-sort boundaries. # foreach {tx limit offset orderby} { 1 10 24 {+b,+a} 2 10 25 {+b,+a} 3 10 26 {+b,+a} 4 10 39 {+b,+a} 5 10 40 {+b,+a} 6 10 41 {+b,+a} 7 27 24 {+b,+a} 8 27 49 {+b,+a} 11 10 24 {+b DESC,+a} 12 10 25 {+b DESC,+a} 13 10 26 {+b DESC,+a} 14 10 39 {+b DESC,+a} 15 10 40 {+b DESC,+a} 16 10 41 {+b DESC,+a} 17 27 24 {+b DESC,+a} 18 27 49 {+b DESC,+a} 21 10 24 {+b,+a DESC} 22 10 25 {+b,+a DESC} 23 10 26 {+b,+a DESC} 24 10 39 {+b,+a DESC} 25 10 40 {+b,+a DESC} 26 10 41 {+b,+a DESC} 27 27 24 {+b,+a DESC} 28 27 49 {+b,+a DESC} 31 10 24 {+b DESC,+a DESC} 32 10 25 {+b DESC,+a DESC} 33 10 26 {+b DESC,+a DESC} 34 10 39 {+b DESC,+a DESC} 35 10 40 {+b DESC,+a DESC} 36 10 41 {+b DESC,+a DESC} 37 27 24 {+b DESC,+a DESC} 38 27 49 {+b DESC,+a DESC} } { set sql1 "SELECT a FROM t1 ORDER BY $orderby LIMIT $limit OFFSET $offset;" set sql2 [string map {+ {}} $sql1] # puts $sql2\n$sql1\n[db eval $sql2] do_test $tn.21.$tx {db eval $::sql2} [db eval $sql1] } ######################################################################## # A second test table, t2, has many columns open to sorting. do_test $tn.31 { db eval "CREATE TABLE t2(a,b,c,d,e,f,PRIMARY KEY(b,c,d,e,f)) $rowidclause;" db eval { WITH RECURSIVE cnt(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM cnt WHERE x<242) INSERT INTO t2 SELECT x, x%3, (x/3)%3, (x/9)%3, (x/27)%3, (x/81)%3 FROM cnt; } } {} do_execsql_test $tn.32 { SELECT a FROM t2 ORDER BY b,c,d,e,f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}] do_execsql_test $tn.33 { SELECT a FROM t2 ORDER BY b,c,d,e,+f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}] do_execsql_test $tn.34 { SELECT a FROM t2 ORDER BY b,c,d,+e,+f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}] do_execsql_test $tn.35 { SELECT a FROM t2 ORDER BY b,c,+d,+e,+f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}] do_execsql_test $tn.36 { SELECT a FROM t2 ORDER BY b,+c,+d,+e,+f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}] do_execsql_test $tn.37 { SELECT a FROM t2 ORDER BY b,c,d,e,f DESC; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f DESC;}] do_execsql_test $tn.38 { SELECT a FROM t2 ORDER BY b,c,d,e DESC,f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e DESC,+f;}] do_execsql_test $tn.39 { SELECT a FROM t2 ORDER BY b,c,d DESC,e,f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d DESC,+e,+f;}] do_execsql_test $tn.40 { SELECT a FROM t2 ORDER BY b,c DESC,d,e,f; } [db eval {SELECT a FROM t2 ORDER BY +b,+c DESC,+d,+e,+f;}] do_execsql_test $tn.41 { SELECT a FROM t2 ORDER BY b DESC,c,d,e,f; } [db eval {SELECT a FROM t2 ORDER BY +b DESC,+c,+d,+e,+f;}] do_execsql_test $tn.42 { SELECT a FROM t2 ORDER BY b DESC,c DESC,d,e,f LIMIT 31; } [db eval {SELECT a FROM t2 ORDER BY +b DESC,+c DESC,+d,+e,+f LIMIT 31}] do_execsql_test $tn.43 { SELECT a FROM t2 ORDER BY b,c,d,e,f DESC LIMIT 8 OFFSET 7; } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f DESC LIMIT 8 OFFSET 7}] } finish_test