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Create executor and planner-backend support for decoupled heap and index

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scans, using in-memory tuple ID bitmaps as the intermediary.  The planner
frontend (path creation and cost estimation) is not there yet, so none
of this code can be executed.  I have tested it using some hacked planner
code that is far too ugly to see the light of day, however.  Committing
now so that the bulk of the infrastructure changes go in before the tree
drifts under me.
This commit is contained in:
Tom Lane
2005-04-19 22:35:18 +00:00
parent 04ce41ca62
commit 4a8c5d0375
30 changed files with 2783 additions and 76 deletions
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4
src/include/executor/nodeIndexscan.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/executor/nodeIndexscan.h,v 1.21 2004/12/31 22:03:29 pgsql Exp $
* $PostgreSQL: pgsql/src/include/executor/nodeIndexscan.h,v 1.22 2005/04/19 22:35:17 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -24,6 +24,4 @@ extern void ExecIndexMarkPos(IndexScanState *node);
extern void ExecIndexRestrPos(IndexScanState *node);
extern void ExecIndexReScan(IndexScanState *node, ExprContext *exprCtxt);
extern void ExecUpdateIndexScanKeys(IndexScanState *node, ExprContext *econtext);
#endif /* NODEINDEXSCAN_H */