gfphoenix78 commented on code in PR #724:
URL: https://github.com/apache/cloudberry/pull/724#discussion_r1855727314
##########
src/backend/executor/nodeHashjoin.c:
##########
@@ -2157,3 +2174,225 @@ ExecHashJoinInitializeWorker(HashJoinState *state,
ExecSetExecProcNode(&state->js.ps, ExecParallelHashJoin);
}
}
+
+/*
+ * Find "inner var = outer var" in hj->hashclauses and create runtime filter
+ * for it.
+ */
+void
+CreateRuntimeFilter(HashJoinState* hjstate)
+{
+ AttrNumber lattno, rattno;
+ Expr *expr;
+ JoinType jointype;
+ HashJoin *hj;
+ HashState *hstate;
+ PlanState *target;
+ AttrFilter *attr_filter;
+ ListCell *lc;
+
+ /*
+ * Only applicatable for inner, right and semi join,
+ */
Review Comment:
Could you give a little more explain about why these join types are
supported and others are not?
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