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Suppress superfluous OP_OpenTemps when flattening subqueries. (CVS 412)

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FossilOrigin-Name: 000441c8fec48cc172894eb767ae9549b8ed8c34
This commit is contained in:
drh
2002-03-03 03:03:52 +00:00
parent 1b2e032999
commit 2d0794e325
5 changed files with 31 additions and 15 deletions
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12
test/select6.test
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@ -12,7 +12,7 @@
# focus of this file is testing SELECT statements that contain
# subqueries in their FROM clause.
#
# $Id: select6.test,v 1.3 2002/03/03 02:49:52 drh Exp $
# $Id: select6.test,v 1.4 2002/03/03 03:03:54 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -263,6 +263,16 @@ do_test select6-4.3 {
SELECT DISTINCT y FROM (SELECT y FROM t1) WHERE y<5 ORDER BY y
}
} {1 2 3 4}
do_test select6-4.4 {
execsql {
SELECT avg(y) FROM (SELECT DISTINCT y FROM t1) WHERE y<5 ORDER BY y
}
} {2.5}
do_test select6-4.5 {
execsql {
SELECT avg(y) FROM (SELECT DISTINCT y FROM t1 WHERE y<5) ORDER BY y
}
} {2.5}
finish_test