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| author | drh <drh@noemail.net> | 2017-08-14 14:53:24 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2017-08-14 14:53:24 +0000 |
| commit | 4dd89d5a249e93cec34d4396f27b1e9c1eb9a296 (patch) | |
| tree | f8695e6bf86395827e8c7d08ce10686781677469 /src/expr.c | |
| parent | 1112cc797b2b588287e32aaee537343a9d3dc02e (diff) | |
| download | sqlite-4dd89d5a249e93cec34d4396f27b1e9c1eb9a296.tar.gz sqlite-4dd89d5a249e93cec34d4396f27b1e9c1eb9a296.zip | |
Sometimes a TK_COLUMN Expr node can have Expr.pTab==0 if it is a reference
to an expression column in an index on and expression. Fix for ticket
[aa98619ad08ddcab].
FossilOrigin-Name: d0da791ba0edfb65186459345e43500d8364a086a5a1651d828fecc1a1dd1edb
Diffstat (limited to 'src/expr.c')
| -rw-r--r-- | src/expr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/expr.c b/src/expr.c index 6a3ccd833..d090aab3b 100644 --- a/src/expr.c +++ b/src/expr.c @@ -1973,8 +1973,8 @@ int sqlite3ExprCanBeNull(const Expr *p){ case TK_BLOB: return 0; case TK_COLUMN: - assert( p->pTab!=0 ); return ExprHasProperty(p, EP_CanBeNull) || + p->pTab==0 || /* Reference to column of index on expression */ (p->iColumn>=0 && p->pTab->aCol[p->iColumn].notNull==0); default: return 1; |