AryaWu/sqlite

1# 2012 December 192#3# The author disclaims copyright to this source code.  In place of4# 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 name resolution in SELECT12# statements that have parenthesized FROM clauses.13#14 15set testdir [file dirname $argv0]16source $testdir/tester.tcl17 18 19for {set i 1} {$i<=2} {incr i} {20  db close21  forcedelete test$i.db22  sqlite3 db test$i.db23  if {$i==2} {24    optimization_control db query-flattener off25  }26  do_test selectD-$i.0 {27    db eval {28      ATTACH ':memory:' AS aux1;29      CREATE TABLE t1(a,b); INSERT INTO t1 VALUES(111,'x1');30      CREATE TABLE t2(a,b); INSERT INTO t2 VALUES(222,'x2');31      CREATE TEMP TABLE t3(a,b); INSERT INTO t3 VALUES(333,'x3');32      CREATE TABLE main.t4(a,b); INSERT INTO main.t4 VALUES(444,'x4');33      CREATE TABLE aux1.t4(a,b); INSERT INTO aux1.t4 VALUES(555,'x5');34    }35  } {}36  do_test selectD-$i.1 {37    db eval {38      SELECT *39        FROM (t1), (t2), (t3), (t4)40       WHERE t4.a=t3.a+111 41         AND t3.a=t2.a+11142         AND t2.a=t1.a+111;43    }44  } {111 x1 222 x2 333 x3 444 x4}45  do_test selectD-$i.2.1 {46    db eval {47      SELECT *48        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)49                              ON t3.a=t2.a+111)50                     ON t2.a=t1.a+111;51    }52  } {111 x1 222 x2 333 x3 444 x4}53  do_test selectD-$i.2.2 {54    db eval {55      SELECT t3.a56        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)57                              ON t3.a=t2.a+111)58                     ON t2.a=t1.a+111;59    }60  } {333}61  do_test selectD-$i.2.3 {62    db eval {63      SELECT t3.*64        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)65                              ON t3.a=t2.a+111)66                     ON t2.a=t1.a+111;67    }68  } {333 x3}69  do_test selectD-$i.2.3 {70    db eval {71      SELECT t3.*, t2.*72        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)73                              ON t3.a=t2.a+111)74                     ON t2.a=t1.a+111;75    }76  } {333 x3 222 x2}77  do_test selectD-$i.2.4 {78    db eval {79      SELECT *80        FROM t1 JOIN (t2 JOIN (main.t4 JOIN aux1.t4 ON aux1.t4.a=main.t4.a+111)81                              ON main.t4.a=t2.a+222)82                     ON t2.a=t1.a+111;83    }84  } {111 x1 222 x2 444 x4 555 x5}85  do_test selectD-$i.2.5 {86    db eval {87      SELECT *88        FROM t1 JOIN (t2 JOIN (main.t4 AS x JOIN aux1.t4 ON aux1.t4.a=x.a+111)89                              ON x.a=t2.a+222)90                     ON t2.a=t1.a+111;91    }92  } {111 x1 222 x2 444 x4 555 x5}93  do_test selectD-$i.2.6 {94    catchsql {95      SELECT *96        FROM t1 JOIN (t2 JOIN (main.t4 JOIN aux.t4 ON aux.t4.a=main.t4.a+111)97                              ON main.t4.a=t2.a+222)98                     ON t2.a=t1.a+111;99    }100  } {1 {no such table: aux.t4}}101  do_test selectD-$i.2.7 {102    db eval {103      SELECT x.a, y.b104        FROM t1 JOIN (t2 JOIN (main.t4 x JOIN aux1.t4 y ON y.a=x.a+111)105                              ON x.a=t2.a+222)106                     ON t2.a=t1.a+111;107    }108  } {444 x5}109  do_test selectD-$i.3 {110    db eval {111      UPDATE t2 SET a=111;112      UPDATE t3 SET a=111;113      UPDATE t4 SET a=111;114      SELECT *115        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 USING(a)) USING (a)) USING (a);116    }117  } {111 x1 x2 x3 x4}118  do_test selectD-$i.4 {119    db eval {120      UPDATE t2 SET a=111;121      UPDATE t3 SET a=111;122      UPDATE t4 SET a=111;123      SELECT *124        FROM t1 LEFT JOIN (t2 LEFT JOIN (t3 LEFT JOIN t4 USING(a))125                                        USING (a))126                           USING (a);127    }128  } {111 x1 x2 x3 x4}129  do_test selectD-$i.5 {130    db eval {131      UPDATE t3 SET a=222;132      UPDATE t4 SET a=222;133      SELECT *134        FROM (t1 LEFT JOIN t2 USING(a)) JOIN (t3 LEFT JOIN t4 USING(a))135             ON t1.a=t3.a-111;136    }137  } {111 x1 x2 222 x3 x4}138  do_test selectD-$i.6 {139    db eval {140      UPDATE t4 SET a=333;141      SELECT *142        FROM (t1 LEFT JOIN t2 USING(a)) JOIN (t3 LEFT JOIN t4 USING(a))143             ON t1.a=t3.a-111;144    }145  } {111 x1 x2 222 x3 {}}146  do_test selectD-$i.7 {147    db eval {148      SELECT t1.*, t2.*, t3.*, t4.b149        FROM (t1 LEFT JOIN t2 USING(a)) JOIN (t3 LEFT JOIN t4 USING(a))150             ON t1.a=t3.a-111;151    }152  } {111 x1 111 x2 222 x3 {}}153}154 155# The following test was added on 2013-04-24 in order to verify that156# the datatypes and affinities of sub-sub-queries are set prior to computing157# the datatypes and affinities of the parent sub-queries because the 158# latter computation depends on the former.159#160do_execsql_test selectD-4.1 {161  CREATE TABLE t41(a INTEGER PRIMARY KEY, b INTEGER);162  CREATE TABLE t42(d INTEGER PRIMARY KEY, e INTEGER);163  CREATE TABLE t43(f INTEGER PRIMARY KEY, g INTEGER);164  EXPLAIN QUERY PLAN165  SELECT * 166   FROM t41167   LEFT JOIN (SELECT count(*) AS cnt, x1.d168                FROM (t42 INNER JOIN t43 ON d=g) AS x1169               WHERE x1.d>5170               GROUP BY x1.d) AS x2171                  ON t41.b=x2.d;172} {/SEARCH x2 USING AUTOMATIC/}173 174finish_test175