gitlab.com/CoiaPrant/sqlite3@v1.19.1/testdata/tcl/whereK.test (about) 1 # 2015-03-16 2 # 3 # The author disclaims copyright to this source code. In place of 4 # a legal notice, here is a blessing: 5 # 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. 9 # 10 #*********************************************************************** 11 # This file implements regression tests for SQLite library. The 12 # focus of this file is testing OR expressions where terms can be 13 # factored from either side of the OR and combined into a single new 14 # AND term that is beneficial to the search. Examples: 15 # 16 # (x>A OR x=A) --> ... AND (x>=A) 17 # (x>A OR (x=A AND y>=B) --> ... AND (x>=A) 18 # 19 20 21 22 set testdir [file dirname $argv0] 23 source $testdir/tester.tcl 24 set ::testprefix whereK 25 26 do_execsql_test 1.1 { 27 CREATE TABLE t1(a,b,c); 28 WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<99) 29 INSERT INTO t1(a,b,c) SELECT x, x/10, x%10 FROM c; 30 CREATE INDEX t1bc ON t1(b,c); 31 SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a; 32 } {90 91 92 93 94 95 96 97 98 99} 33 do_execsql_test 1.1eqp { 34 EXPLAIN QUERY PLAN 35 SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a; 36 } {/SEARCH t1 USING INDEX t1bc/} 37 38 do_execsql_test 1.2 { 39 SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a; 40 } {88 89 90 91 92 93 94 95 96 97 98 99} 41 do_execsql_test 1.2eqp { 42 EXPLAIN QUERY PLAN 43 SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a; 44 } {/SEARCH t1 USING INDEX t1bc/} 45 46 do_execsql_test 1.3 { 47 SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a; 48 } {88 89 90 91 92 93 94 95 96 97 98 99} 49 do_execsql_test 1.3eqp { 50 EXPLAIN QUERY PLAN 51 SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a; 52 } {/SEARCH t1 USING INDEX t1bc/} 53 54 do_execsql_test 1.4 { 55 SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a; 56 } {88 89 90 91 92 93 94 95 96 97 98 99} 57 do_execsql_test 1.4eqp { 58 EXPLAIN QUERY PLAN 59 SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a; 60 } {/SEARCH t1 USING INDEX t1bc/} 61 62 do_execsql_test 1.5 { 63 SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6)) 64 ORDER BY +a; 65 } {88 89 90 91 92 93 97 98 99} 66 do_execsql_test 1.5eqp { 67 EXPLAIN QUERY PLAN 68 SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6)) 69 ORDER BY +a; 70 } {/SEARCH t1 USING INDEX t1bc/} 71 72 finish_test