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-rw-r--r--src/vdbe.c3
-rw-r--r--src/wherecode.c1
2 files changed, 3 insertions, 1 deletions
diff --git a/src/vdbe.c b/src/vdbe.c
index 143fd49c1..d8b471de2 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -4584,7 +4584,8 @@ case OP_SequenceTest: {
** is the only cursor opcode that works with a pseudo-table.
**
** P3 is the number of fields in the records that will be stored by
-** the pseudo-table.
+** the pseudo-table. If P2 is 0 or negative then the pseudo-cursor
+** will return NULL for every column.
*/
case OP_OpenPseudo: {
VdbeCursor *pCx;
diff --git a/src/wherecode.c b/src/wherecode.c
index e91bc283b..cad2293dd 100644
--- a/src/wherecode.c
+++ b/src/wherecode.c
@@ -2739,6 +2739,7 @@ SQLITE_NOINLINE void sqlite3WhereRightJoinLoop(
v, OP_Null, 0, pRight->regResult,
pRight->regResult + pRight->pSelect->pEList->nExpr-1
);
+ sqlite3VdbeAddOp1(v, OP_OpenPseudo, pWInfo->a[k].iTabCur);
}else{
sqlite3VdbeAddOp1(v, OP_NullRow, pWInfo->a[k].iTabCur);
iIdxCur = pWInfo->a[k].iIdxCur;