Support an SQLITE_SCANSTAT_NCYCLE statistic for "CO-ROUTINE" elements.

FossilOrigin-Name: d3f6a207fd1b3f53688fa1ff35eb71e1c5bcc4115c0c35bb187d22ccf7100b71

diff --git a/manifest b/manifest
index eb01d8ca73d29e75fee67ea53a798d1b9ab8180d..ec923e1cf98e7932cea63d59f90d0ff95cc39e16 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\soptional\sfeature:\sA\sCLI\scontinuation\sprompt\swhich\sreflects\sopen\slexemes\sand\sparens,\ssimilarly\sto\sPG\sshell.
-D 2022-12-06T05:31:20.264
+C Support\san\sSQLITE_SCANSTAT_NCYCLE\sstatistic\sfor\s"CO-ROUTINE"\selements.
+D 2022-12-06T11:41:05.297
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -645,7 +645,7 @@ F src/printf.c e99ee9741e79ae3873458146f59644276657340385ade4e76a5f5d1c25793764
 F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
 F src/resolve.c efea4e5fbecfd6d0a9071b0be0d952620991673391b6ffaaf4c277b0bb674633
 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
-F src/select.c 321f29e431fbb71e594cc7026391a827a0270237597d2e2401244e7602dea8bd
+F src/select.c 56162cde2f71314826f831618eae853205628080afa25cd90faef7a9b761dee4
 F src/shell.c.in f4ef4c6bca35bcab91041c2e10ac9b53440c37d5751563713cc7feaa8c1ac880
 F src/sqlite.h.in 1fe1836879ecbb2e28f00f44eb6092db09a2a06bf072af351c6c2466bd515496
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
@@ -2067,8 +2067,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 4893b4e3eafc7c9c22b24717f90a585862203f987cf108b079ce6e946093e675 dac2ddc287db7a68d0cd49b785060f62290868fbb1aa2ee09e54d3b1acfbf55f
-R 4e6f769112d568da8b23927a4847535b
-U larrybr
-Z 19f7409ace4582d7233d6e9f94f36495
+P f41f18b1c3c950565ee3c237aebb51cfc3241813c6425813a8217e07aa0153a6
+R 81af46208bd94570e4ca8392d104cd34
+U dan
+Z cc39d40fca54132e62b35ae953e9525e
 # Remove this line to create a well-formed Fossil manifest.

diff --git a/manifest.uuid b/manifest.uuid
index 02dae66a86f87acc38412a267ece509abe8682fc..43afcfd03e639ed681fece178d610d7ed072b1c6 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-f41f18b1c3c950565ee3c237aebb51cfc3241813c6425813a8217e07aa0153a6
\ No newline at end of file
+d3f6a207fd1b3f53688fa1ff35eb71e1c5bcc4115c0c35bb187d22ccf7100b71
\ No newline at end of file

diff --git a/src/select.c b/src/select.c
index 34ba3f7a4ce921e983ed7791149f18b04453c56a..886ac336f22c7d488e70493ad094947069edf82c 100644 (file)
--- a/src/select.c
+++ b/src/select.c
@@ -7260,13 +7260,16 @@ int sqlite3Select(
       ** set on each invocation.
       */
       int addrTop = sqlite3VdbeCurrentAddr(v)+1;
+#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
+      int addrExplain;
+#endif
      
       pItem->regReturn = ++pParse->nMem;
       sqlite3VdbeAddOp3(v, OP_InitCoroutine, pItem->regReturn, 0, addrTop);
       VdbeComment((v, "%!S", pItem));
       pItem->addrFillSub = addrTop;
       sqlite3SelectDestInit(&dest, SRT_Coroutine, pItem->regReturn);
-      ExplainQueryPlan((pParse, 1, "CO-ROUTINE %!S", pItem));
+      ExplainQueryPlan2(addrExplain, (pParse, 1, "CO-ROUTINE %!S", pItem));
       sqlite3Select(pParse, pSub, &dest);
       pItem->pTab->nRowLogEst = pSub->nSelectRow;
       pItem->fg.viaCoroutine = 1;
@@ -7274,6 +7277,10 @@ int sqlite3Select(
       sqlite3VdbeEndCoroutine(v, pItem->regReturn);
       sqlite3VdbeJumpHere(v, addrTop-1);
       sqlite3ClearTempRegCache(pParse);
+      /* For SQLITE_SCANSTAT_NCYCLE, all instructions from the 
+      ** OP_InitCoroutine coded above until this point are attributed to 
+      ** the CO-ROUTINE query element.  */
+      sqlite3VdbeScanStatusRange(v, addrExplain, addrExplain-1, -1);
     }else if( pItem->fg.isCte && pItem->u2.pCteUse->addrM9e>0 ){
       /* This is a CTE for which materialization code has already been
       ** generated.  Invoke the subroutine to compute the materialization,
@@ -7328,7 +7335,6 @@ int sqlite3Select(
       if( onceAddr ) sqlite3VdbeJumpHere(v, onceAddr);
       sqlite3VdbeAddOp2(v, OP_Return, pItem->regReturn, topAddr+1);
       VdbeComment((v, "end %!S", pItem));
-      sqlite3VdbeScanStatusRange(v, addrExplain, addrExplain, -1);
       sqlite3VdbeJumpHere(v, topAddr);
       sqlite3ClearTempRegCache(pParse);
       if( pItem->fg.isCte && pItem->fg.isCorrelated==0 ){
@@ -7338,6 +7344,9 @@ int sqlite3Select(
         pCteUse->iCur = pItem->iCursor;
         pCteUse->nRowEst = pSub->nSelectRow;
       }
+      /* For SQLITE_SCANSTAT_NCYCLE, all instructions from the 
+      ** OP_Explain to here are attibuted to the MATERIALIZE element. */
+      sqlite3VdbeScanStatusRange(v, addrExplain, addrExplain, -1);
     }
     if( db->mallocFailed ) goto select_end;
     pParse->nHeight -= sqlite3SelectExprHeight(p);