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Preliminary code to support RIGHT JOIN. Everything seems to work, except that

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the code to compute the unmatched rows for the RIGHT JOIN has not yet been
added, so the result of a RIGHT JOIN is currently the same as an INNER JOIN.

FossilOrigin-Name: 415abd6731b8e8a605adabfa6066c8a852a8531c300df41325d5f7e75cae5a70
This commit is contained in:
drh
2022-04-08 19:20:12 +00:00
parent 7d0ae00361
commit a76ac88af8
12 changed files with 103 additions and 90 deletions
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12
test/join.test
View File

@ -272,11 +272,13 @@ do_test join-2.2 {
SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1;
}
} {1 2 3 {} 2 3 4 1 3 4 5 2}
do_test join-2.3 {
catchsql {
SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
}
} {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
#do_test join-2.3 {
# catchsql {
# SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
# }
#} {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
do_test join-2.4 {
execsql {
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d

10
test/vtab6.test
View File

@ -223,11 +223,11 @@ do_test vtab6-2.2 {
SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1;
}
} {1 2 3 {} 2 3 4 1 3 4 5 2}
do_test vtab6-2.3 {
catchsql {
SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
}
} {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
#do_test vtab6-2.3 {
# catchsql {
# SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
# }
#} {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
do_test vtab6-2.4 {
execsql {
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d