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| author | drh <drh@noemail.net> | 2016-11-25 14:30:42 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2016-11-25 14:30:42 +0000 |
| commit | 36fd41e52b8c8eba02c2fa89e1a39afa7c7e9907 (patch) | |
| tree | e2830d88da05ca72e7e6d030fe01c393af16c694 /src/expr.c | |
| parent | 36f49d05650bd928eea77934172b9feae497f659 (diff) | |
| download | sqlite-36fd41e52b8c8eba02c2fa89e1a39afa7c7e9907.tar.gz sqlite-36fd41e52b8c8eba02c2fa89e1a39afa7c7e9907.zip | |
Add a comment to help clarify the EP_FromJoin hack in exprCodeBetween().
FossilOrigin-Name: 6df7c5747e0247b14bf015ef4320ddcf6fccf694
Diffstat (limited to 'src/expr.c')
| -rw-r--r-- | src/expr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/expr.c b/src/expr.c index ffbafb0aa..2f7deeea9 100644 --- a/src/expr.c +++ b/src/expr.c @@ -4167,6 +4167,11 @@ static void exprCodeBetween( if( xJump ){ xJump(pParse, &exprAnd, dest, jumpIfNull); }else{ + /* Mark the expression is being from the ON or USING clause of a join + ** so that the sqlite3ExprCodeTarget() routine will not attempt to move + ** it into the Parse.pConstExpr list. We should use a new bit for this, + ** for clarity, but we are out of bits in the Expr.flags field so we + ** have to reuse the EP_FromJoin bit. Bummer. */ exprX.flags |= EP_FromJoin; sqlite3ExprCodeTarget(pParse, &exprAnd, dest); } |