Update mark/reset index code for multiple indexes, (OR code).

Thanks for Vadim for fixes.

diff --git a/src/backend/executor/nodeIndexscan.c b/src/backend/executor/nodeIndexscan.c
index f964c18..0749431 100644 (file)
--- a/src/backend/executor/nodeIndexscan.c
+++ b/src/backend/executor/nodeIndexscan.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/executor/nodeIndexscan.c,v 1.21 1998/08/01 22:44:52 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/executor/nodeIndexscan.c,v 1.22 1998/08/03 19:41:29 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -258,9 +258,8 @@ ExecIndexReScan(IndexScan *node, ExprContext *exprCtxt, Plan *parent)
        if (exprCtxt == NULL)
                exprCtxt = node->scan.scanstate->cstate.cs_ExprContext;
 
-       if (exprCtxt != NULL)
-               node->scan.scanstate->cstate.cs_ExprContext->ecxt_outertuple =
-                       exprCtxt->ecxt_outertuple;
+       node->scan.scanstate->cstate.cs_ExprContext->ecxt_outertuple =
+               exprCtxt->ecxt_outertuple;
                
        /*
         * get the index qualifications and recalculate the appropriate
@@ -268,43 +267,40 @@ ExecIndexReScan(IndexScan *node, ExprContext *exprCtxt, Plan *parent)
         */
        for (i = 0; i < numIndices; i++)
        {
-               if (runtimeKeyInfo && runtimeKeyInfo[i] != NULL)
+               qual = nth(i, indxqual);
+               n_keys = numScanKeys[i];
+               run_keys = (int *) runtimeKeyInfo[i];
+               scan_keys = (ScanKey) scanKeys[i];
+       
+               for (j = 0; j < n_keys; j++)
                {
-                       qual = nth(i, indxqual);
-                       n_keys = numScanKeys[i];
-                       run_keys = (int *) runtimeKeyInfo[i];
-                       scan_keys = (ScanKey) scanKeys[i];
-               
-                       for (j = 0; j < n_keys; j++)
+                       /*
+                        * If we have a run-time key, then extract the run-time
+                        * expression and evaluate it with respect to the current
+                        * outer tuple.  We then stick the result into the scan key.
+                        */
+                       if (run_keys[j] != NO_OP)
                        {
+                               clause = nth(j, qual);
+                               scanexpr = (run_keys[j] == RIGHT_OP) ?
+                                       (Node *) get_rightop(clause) : (Node *) get_leftop(clause);
+
                                /*
-                                * If we have a run-time key, then extract the run-time
-                                * expression and evaluate it with respect to the current
-                                * outer tuple.  We then stick the result into the scan key.
+                                * pass in isDone but ignore it.  We don't iterate in
+                                * quals
                                 */
-                               if (run_keys[j] != NO_OP)
-                               {
-                                       clause = nth(j, qual);
-                                       scanexpr = (run_keys[j] == RIGHT_OP) ?
-                                               (Node *) get_rightop(clause) : (Node *) get_leftop(clause);
-       
-                                       /*
-                                        * pass in isDone but ignore it.  We don't iterate in
-                                        * quals
-                                        */
-                                       scanvalue = (Datum)
-                                               ExecEvalExpr(scanexpr, exprCtxt, &isNull, &isDone);
-                                       scan_keys[j].sk_argument = scanvalue;
-                                       if (isNull)
-                                               scan_keys[j].sk_flags |= SK_ISNULL;
-                                       else
-                                               scan_keys[j].sk_flags &= ~SK_ISNULL;
-                               }
+                               scanvalue = (Datum)
+                                       ExecEvalExpr(scanexpr, exprCtxt, &isNull, &isDone);
+                               scan_keys[j].sk_argument = scanvalue;
+                               if (isNull)
+                                       scan_keys[j].sk_flags |= SK_ISNULL;
+                               else
+                                       scan_keys[j].sk_flags &= ~SK_ISNULL;
                        }
-                       sdesc = scanDescs[i];
-                       skey = scanKeys[i];
-                       index_rescan(sdesc, direction, skey);
                }
+               sdesc = scanDescs[i];
+               skey = scanKeys[i];
+               index_rescan(sdesc, direction, skey);
        }
        /* ----------------
         *      perhaps return something meaningful
@@ -416,7 +412,7 @@ ExecIndexMarkPos(IndexScan *node)
        int                     indexPtr;
 
        indexstate = node->indxstate;
-       indexPtr = indexstate->iss_IndexPtr;
+       indexPtr = indexstate->iss_MarkIndexPtr = indexstate->iss_IndexPtr;
        indexScanDescs = indexstate->iss_ScanDescs;
        scanDesc = indexScanDescs[indexPtr];
 
@@ -445,7 +441,7 @@ ExecIndexRestrPos(IndexScan *node)
        int                     indexPtr;
 
        indexstate = node->indxstate;
-       indexPtr = indexstate->iss_IndexPtr;
+       indexPtr = indexstate->iss_IndexPtr = indexstate->iss_MarkIndexPtr;
        indexScanDescs = indexstate->iss_ScanDescs;
        scanDesc = indexScanDescs[indexPtr];
 

diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h
index 533024e..c582cdd 100644 (file)
--- a/src/include/nodes/execnodes.h
+++ b/src/include/nodes/execnodes.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: execnodes.h,v 1.16 1998/07/27 19:38:34 vadim Exp $
+ * $Id: execnodes.h,v 1.17 1998/08/03 19:41:31 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -399,6 +399,7 @@ typedef struct IndexScanState
        CommonState cstate;                     /* its first field is NodeTag */
        int                     iss_NumIndices;
        int                     iss_IndexPtr;
+       int                     iss_MarkIndexPtr;
        ScanKey    *iss_ScanKeys;
        int                *iss_NumScanKeys;
        Pointer         iss_RuntimeKeyInfo;

diff --git a/src/tools/backend/flow.fig b/src/tools/backend/flow.fig
index c12880e..87b9df8 100644 (file)
--- a/src/tools/backend/flow.fig
+++ b/src/tools/backend/flow.fig
@@ -8,85 +8,63 @@ Inches
 4 0 -1 0 0 0 24 0.0000 4 330 1800 450 675 PostgreSQL\001
 4 0 -1 0 0 0 24 0.0000 4 330 1290 450 1095 Program\001
 -6
-6 5325 13125 7725 14400
-2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
-        7725 14400 5325 14400 5325 13800 7725 13800 7725 14400
-2 1 0 1 29 7 0 0 -1 0.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
-        6450 13200 6450 13800
--6
 2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 1
         8475 2175
 2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 1
         8475 2175
 2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
         2850 13200 450 13200 450 12600 2850 12600 2850 13200
-2 1 0 1 29 7 0 0 -1 0.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
+2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
         1650 12600 1650 12000
 2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
         9225 13200 6825 13200 6825 12600 9225 12600 9225 13200
-2 1 0 1 29 7 0 0 -1 0.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
+2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
         8025 11925 8025 12525
 2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
         6000 13200 3600 13200 3600 12600 6000 12600 6000 13200
-2 1 0 1 29 7 0 0 -1 0.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
+2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
         4800 12600 4800 12000
 2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
         4425 14400 2025 14400 2025 13800 4425 13800 4425 14400
-2 1 0 1 29 7 0 0 -1 0.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
+2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
         3225 13200 3225 13800
-2 1 0 1 8 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
+2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
         2625 6675 2625 7275
-2 1 0 1 19 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
-        2625 2775 2625 3375
 2 4 0 1 -1 4 0 0 20 0.000 0 0 7 0 0 5
         3825 3975 1425 3975 1425 3375 3825 3375 3825 3975
-2 1 0 1 20 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
-        2625 3975 2625 4575
-2 1 0 1 20 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
-        2625 3975 6525 4575
 2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
         3825 6675 1425 6675 1425 6075 3825 6075 3825 6675
 2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
-        3825 7875 1425 7875 1425 7275 3825 7275 3825 7875
-2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
         3825 9075 1425 9075 1425 8475 3825 8475 3825 9075
-2 1 0 1 8 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
+2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
         2625 7875 2625 8475
 2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
         3825 10275 1425 10275 1425 9675 3825 9675 3825 10275
-2 1 0 1 8 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
+2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
         2625 9075 2625 9675
-2 1 0 1 8 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
+2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
         2625 10275 2625 10875
 2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
         7725 7875 5325 7875 5325 7275 7725 7275 7725 7875
-2 1 0 1 8 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
-        3825 7575 5325 7575
-2 1 0 1 8 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
+2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
         2625 5775 2625 6075
 2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
         3825 11475 1425 11475 1425 10875 3825 10875 3825 11475
-2 1 0 1 31 7 0 0 -1 0.000 0 0 -1 1 0 2
-       0 0 1.00 60.00 120.00
+2 1 0 2 31 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
         2625 5175 2625 5775
 2 4 0 1 -1 31 0 0 20 0.000 0 0 7 0 0 5
         3825 5175 1425 5175 1425 4575 3825 4575 3825 5175
@@ -96,24 +74,44 @@ Inches
         8775 11775 375 11775 375 5625 8775 5625 8775 11775
 2 4 0 1 -1 0 0 0 20 0.000 0 0 7 0 0 5
         7725 3375 5325 3375 5325 2775 7725 2775 7725 3375
-2 1 1 1 -1 7 0 0 -1 3.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
-        4660 3324 5295 3093
-2 1 1 1 -1 7 0 0 -1 4.000 0 0 -1 1 1 2
-       0 0 1.00 60.00 120.00
-       0 0 1.00 60.00 120.00
-        4890 3708 5325 3150
-2 4 0 1 -1 26 0 0 20 0.000 0 0 7 0 0 5
-        3825 2775 1425 2775 1425 2175 3825 2175 3825 2775
 2 4 0 1 -1 23 0 0 20 0.000 0 0 8 0 0 5
         2925 15675 525 15675 525 15075 2925 15075 2925 15675
-3 0 0 1 8 7 0 0 -1 0.000 0 1 0 5
-       0 0 1.00 60.00 120.00
-        7725 7575 8325 7275 8325 6375 7950 5775 2625 5775
-3 0 0 1 8 7 0 0 -1 0.000 0 1 0 5
-       0 0 1.00 60.00 120.00
-        1425 11175 750 10725 750 6225 1425 5775 2625 5775
+2 1 0 2 25 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.50
+        2625 2775 2625 3375
+2 4 0 1 -1 26 0 0 20 0.000 0 0 7 0 0 5
+        3825 2775 1425 2775 1425 2175 3825 2175 3825 2775
+2 1 0 2 20 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
+        2625 3975 2625 4575
+2 1 0 2 20 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
+        2625 3975 6525 4575
+2 1 1 2 -1 7 0 0 -1 4.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
+        4890 3708 5325 3150
+2 4 0 1 -1 29 0 0 20 0.000 0 0 7 0 0 5
+        7725 14400 5325 14400 5325 13800 7725 13800 7725 14400
+2 1 0 2 29 7 0 0 -1 0.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
+        6450 13200 6450 13800
+2 1 0 2 8 7 0 0 -1 0.000 0 0 -1 1 0 2
+       0 0 2.00 150.00 180.00
+        3825 7575 5325 7575
+2 4 0 1 -1 8 0 0 20 0.000 0 0 7 0 0 5
+        3825 7875 1425 7875 1425 7275 3825 7275 3825 7875
+2 1 1 2 -1 7 0 0 -1 3.000 0 0 -1 1 1 2
+       0 0 2.00 150.00 180.00
+       0 0 2.00 150.00 180.00
+        4735 3324 5370 3093
+3 0 0 2 8 7 0 0 -1 0.000 0 1 0 5
+       0 0 2.00 150.00 180.00
+        7725 7575 8325 7275 8325 6375 7800 5775 2625 5775
+3 0 0 2 8 7 0 0 -1 0.000 0 1 0 5
+       0 0 2.00 150.00 180.00
+        1425 11175 825 10725 825 6225 1575 5775 2625 5775
 4 1 -1 0 0 28 18 0.0000 4 195 1050 1635 12990 Utilities\001
 4 1 -1 0 0 28 18 0.0000 4 240 2325 8040 12990 Storage Managers\001
 4 1 -1 0 0 0 18 0.0000 4 255 840 4800 12975 Catalog\001

diff --git a/src/tools/backend/flow.jpg b/src/tools/backend/flow.jpg
index dba7dcd..d2cfb67 100644 (file)
Binary files a/src/tools/backend/flow.jpg and b/src/tools/backend/flow.jpg differ

diff --git a/src/tools/backend/index.html b/src/tools/backend/index.html
index 1942e72..8a3244b 100644 (file)
--- a/src/tools/backend/index.html
+++ b/src/tools/backend/index.html
@@ -11,10 +11,6 @@ by Bruce Momjian
 </H2>
 <P>
 <CENTER>
-<EM><BIG>
-Click on an item to see more detail or look at the full
-<A HREF="backend_dirs.html">index.</A>
-</BIG></EM>
 <BR>
 <BR>
 <IMG src="flow.jpg" usemap="#flowmap" alt="flowchart">
@@ -38,10 +34,12 @@ Click on an item to see more detail or look at the full
 <AREA COORDS="340,900,500,950" HREF="backend_dirs.html#nodes">
 <AREA COORDS="20,990,180,1030" HREF="backend_dirs.html#bootstrap">
 </MAP>
+<CENTER><EM>
+Click on an item to see more detail or look at the full
+<A HREF="backend_dirs.html">index.</A>
+</EM></CENTER>
 <BR>
-<P>
 
-<HR>
 <P>
 
 A query comes to the backend via data packets arriving through TCP/IP or
@@ -117,8 +115,8 @@ can be accessed by clicking on the flowchart.<P>
 
 
 Another area of interest is the shared memory area, which contains data
-accessable to all backends.  It has table recently used data/index
-blocks, locks, backend information, and lookup tables for these
+accessable to all backends.  It has recently used data/index blocks,
+locks, backend process information, and lookup tables for these
 structures:
 
 <UL>