test/aggnested.test

# 2012 August 23
#
# 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.
#
# This file implements tests for processing aggregate queries with 
# subqueries in which the subqueries hold the aggregate functions
# or in which the subqueries are themselves aggregate queries
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

do_test aggnested-1.1 {
  db eval {
    CREATE TABLE t1(a1 INTEGER);
    INSERT INTO t1 VALUES(1), (2), (3);
    CREATE TABLE t2(b1 INTEGER);
    INSERT INTO t2 VALUES(4), (5);
    SELECT (SELECT group_concat(a1,'x') FROM t2) FROM t1;
  }
} {1x2x3}
do_test aggnested-1.2 {
  db eval {
    SELECT
     (SELECT group_concat(a1,'x') || '-' || group_concat(b1,'y') FROM t2)
    FROM t1;
  }
} {1x2x3-4y5}
do_test aggnested-1.3 {
  db eval {
    SELECT (SELECT group_concat(b1,a1) FROM t2) FROM t1;
  }
} {415 425 435}
do_test aggnested-1.4 {
  db eval {
    SELECT (SELECT group_concat(a1,b1) FROM t2) FROM t1;
  }
} {151 252 353}


# This test case is a copy of the one in
# http://www.mail-archive.com/sqlite-users@sqlite.org/msg70787.html
#
do_test aggnested-2.0 {
  sqlite3 db2 :memory:
  db2 eval {
    CREATE TABLE t1 (A1 INTEGER NOT NULL,A2 INTEGER NOT NULL,A3 INTEGER NOT 
    NULL,A4 INTEGER NOT NULL,PRIMARY KEY(A1));
    REPLACE INTO t1 VALUES(1,11,111,1111);
    REPLACE INTO t1 VALUES(2,22,222,2222);
    REPLACE INTO t1 VALUES(3,33,333,3333);
    CREATE TABLE t2 (B1 INTEGER NOT NULL,B2 INTEGER NOT NULL,B3 INTEGER NOT 
    NULL,B4 INTEGER NOT NULL,PRIMARY KEY(B1));
    REPLACE INTO t2 VALUES(1,88,888,8888);
    REPLACE INTO t2 VALUES(2,99,999,9999);
    SELECT (SELECT GROUP_CONCAT(CASE WHEN a1=1 THEN'A' ELSE 'B' END) FROM t2),
            t1.* 
    FROM t1;
  }
} {A,B,B 3 33 333 3333}
db2 close

finish_test