Replace the array-style TupleTable data structure with a simple List of
Tom Lane <tgl@sss.pgh.pa.us>
Replace the array-style TupleTable data structure with a simple List of TupleTableSlot nodes. This eliminates the need to count in advance how many Slots will be needed, which seems more than worth the small increase in the amount of palloc traffic during executor startup. The ExecCountSlots infrastructure is now all dead code, but I'll remove it in a separate commit for clarity. Per a comment from Robert Haas.
Files
| Path | Change | +/− |
|---|---|---|
| src/backend/executor/execMain.c | modified | +19 −45 |
| src/backend/executor/execTuples.c | modified | +80 −150 |
| src/backend/executor/execUtils.c | modified | +2 −2 |
| src/backend/executor/nodeSubplan.c | modified | +3 −13 |
| src/include/executor/tuptable.h | modified | +6 −19 |
| src/include/nodes/execnodes.h | modified | +2 −2 |