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Enhance the code generator for INSERT INTO ... SELECT so that the SELECT

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generates output directly in the registers that INSERT INTO will be using,
in many cases, and OP_SCopy operations can thus be avoided.

FossilOrigin-Name: aa2d8b0e8154dd2f5e2c837dc11ab362b083495b
This commit is contained in:
drh
2014-02-16 01:55:49 +00:00
parent cfc6ca4179
commit 05a86c5c0f
9 changed files with 165 additions and 199 deletions
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2
test/insert.test
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@ -398,7 +398,7 @@ ifcapable compound {
} {1 2 3 4 5 6 7 8 9}
do_test insert-10.2 {
catchsql {
INSERT INTO t10 VALUES(11,12,13), (14,15);
INSERT INTO t10 VALUES(11,12,13), (14,15), (16,17,28);
}
} {1 {all VALUES must have the same number of terms}}
}