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}

finish_test