Clean up handling of inherited-table update queries, per bug report
Tom Lane <tgl@sss.pgh.pa.us>
Clean up handling of inherited-table update queries, per bug report from Sebastian Böck. The fix involves being more consistent about when rangetable entries are copied or modified. Someday we really need to fix this stuff to not scribble on its input data structures in the first place...
Files
| Path | Change | +/− |
|---|---|---|
| src/backend/optimizer/path/allpaths.c | modified | +2 −10 |
| src/backend/optimizer/plan/planner.c | modified | +31 −15 |
| src/backend/optimizer/prep/prepunion.c | modified | +32 −26 |
| src/backend/optimizer/util/clauses.c | modified | +11 −1 |
| src/include/optimizer/prep.h | modified | +2 −3 |