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Rework join-removal logic as per recent discussion. In particular this
fixes things so that it works for cases where nested removals are possible. The overhead of the optimization should be significantly less, as well.
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.383 2010/02/16 22:34:43 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.384 2010/03/28 22:59:32 tgl Exp $
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*
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* NOTES
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* Every node type that can appear in stored rules' parsetrees *must*
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@ -1478,16 +1478,6 @@ _outUniquePath(StringInfo str, UniquePath *node)
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WRITE_FLOAT_FIELD(rows, "%.0f");
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}
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static void
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_outNoOpPath(StringInfo str, NoOpPath *node)
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{
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WRITE_NODE_TYPE("NOOPPATH");
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_outPathInfo(str, (Path *) node);
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WRITE_NODE_FIELD(subpath);
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}
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static void
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_outNestPath(StringInfo str, NestPath *node)
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{
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@ -2740,9 +2730,6 @@ _outNode(StringInfo str, void *obj)
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case T_UniquePath:
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_outUniquePath(str, obj);
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break;
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case T_NoOpPath:
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_outNoOpPath(str, obj);
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break;
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case T_NestPath:
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_outNestPath(str, obj);
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break;
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