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Merge the latest trunk changes, especially the ORDER BY optimizer enhancements

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but also other fixes, onto the sessions branch.

FossilOrigin-Name: f1fbb8c5bfa84e84e0b8e2872d83b06a0c0d5acc
This commit is contained in:
drh
2012-10-09 14:58:15 +00:00
parent c4645dacfb 5a55826bcd
commit d1102b1ec7
41 changed files with 1105 additions and 565 deletions
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11
test/tclsqlite.test
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@ -319,14 +319,23 @@ do_test tcl-8.1 {
execsql {INSERT INTO t1 VALUES(30,NULL)}
db eval {SELECT * FROM t1 WHERE b IS NULL}
} {30 NaN}
proc concatFunc args {return [join $args {}]}
do_test tcl-8.2 {
db function concat concatFunc
db eval {SELECT concat('a', b, 'z') FROM t1 WHERE b is NULL}
} {aNaNz}
do_test tcl-8.3 {
db nullvalue NULL
db nullvalue
} {NULL}
do_test tcl-8.3 {
do_test tcl-8.4 {
db nullvalue {}
db eval {SELECT * FROM t1 WHERE b IS NULL}
} {30 {}}
do_test tcl-8.5 {
db function concat concatFunc
db eval {SELECT concat('a', b, 'z') FROM t1 WHERE b is NULL}
} {az}
# Test the return type of user-defined functions
#