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Fix a dangling-else problem that was causing recursive CTEs to malfunction.

Browse Source 
Begin fixing test cases to work with the new EQP output.

FossilOrigin-Name: 82ca44b82fed6814c84440ba8bfaa019488ab956e84ac165180e2fcece6facb2
This commit is contained in:
drh 2018-05-02 14:24:34 +00:00
parent c631ded5e8
commit 03c3905f94
10 changed files with 590 additions and 432 deletions
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26
manifest
View File

@ -1,5 +1,5 @@
C Improvements\sto\sthe\sEQP\sdisplay\sfor\scompound\sselect\sstatements.
D 2018-05-02T02:22:22.993
C Fix\sa\sdangling-else\sproblem\sthat\swas\scausing\srecursive\sCTEs\sto\smalfunction.\nBegin\sfixing\stest\scases\sto\swork\swith\sthe\snew\sEQP\soutput.
D 2018-05-02T14:24:34.656
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F Makefile.in 5ce9343cba9c189046f1afe6d2bcc1f68079439febc05267b98aec6ecc752439
@ -488,17 +488,17 @@ F src/pcache.h 072f94d29281cffd99e46c1539849f248c4b56ae7684c1f36626797fee375170
F src/pcache1.c 716975564c15eb6679e97f734cec1bfd6c16ac3d4010f05f1f8e509fc7d19880
F src/pragma.c bea56df3ae0637768c0da4fbbb8f2492f780980d95000034a105ff291bf7ca69
F src/pragma.h bb83728944b42f6d409c77f5838a8edbdb0fe83046c5496ffc9602b40340a324
F src/prepare.c 1492a2bed7bc5770c5850404f09bf887a67d4580985b8cee37bdab2ea809f479
F src/prepare.c 95a9dba7a5d032039a77775188cb3b6fb17f2fa1a0b7cd915b30b4b823383ffa
F src/printf.c d3b7844ddeb11fbbdd38dd84d09c9c1ac171d21fb038473c3aa97981201cc660
F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
F src/resolve.c 6415381a0e9d22c0e7cba33ca4a53f81474190862f5d4838190f5eb5b0b47bc9
F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
F src/select.c 41962df2f21593db4eb5e0d7d8f15848b9ebd3ffed9b7584677033a8db37223b
F src/select.c e66bb89e00608e50fa03939d5d86213a302487e8b78e0960b646be9ea0ac2f3e
F src/shell.c.in 29309f2ab656c8817fbc3b7910b9af8464557b91cba75277a03669399c8e2730
F src/sqlite.h.in d669de545f18f2f01362de02e309cd7f15185958c71bac8f53cd5438b46d2bea
F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
F src/sqlite3ext.h 83a3c4ce93d650bedfd1aa558cb85a516bd6d094445ee989740827d0d944368d
F src/sqliteInt.h 337e4fe0a9e3bef575699bd0063ac2dcc31b73c905206d5425d442fe7fbb2798
F src/sqliteInt.h 4095263176d49601f27086b7e66ca541923b72a909187923e3b45e60511cfe2a
F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
F src/status.c 46e7aec11f79dad50965a5ca5fa9de009f7d6bde08be2156f1538a0a296d4d0e
F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
@ -579,7 +579,7 @@ F src/wal.h 8de5d2d3de0956d6f6cb48c83a4012d5f227b8fe940f3a349a4b7e85ebcb492a
F src/walker.c da987a20d40145c0a03c07d8fefcb2ed363becc7680d0500d9c79915591f5b1f
F src/where.c 7a1c5555c00bcf49c677472ae83bb49bf24c8d8e9a060d475e86dee39be2fb3a
F src/whereInt.h 2610cb87dd95509995b63decc674c60f2757697a206cfe0c085ee53d9c43cfff
F src/wherecode.c 13b831d258ab8468cb0469a882f0778632b55d787f329751e50d92b8133ea594
F src/wherecode.c 3368f0797a4b166e0773a4137d270d92ddcbce91618b11d1e9f11f7c39f33068
F src/whereexpr.c e90b2e76dcabc81edff56633bf281bc01d93b71e0c81482dc06925ce39f5844a
F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
F test/affinity2.test a6d901b436328bd67a79b41bb0ac2663918fe3bd
@ -595,13 +595,13 @@ F test/alter4.test b6d7b86860111864f6cddb54af313f5862dda23b
F test/altermalloc.test e81ac9657ed25c6c5bb09bebfa5a047cd8e4acfc
F test/amatch1.test b5ae7065f042b7f4c1c922933f4700add50cdb9f
F test/analyze.test b3a9c67d00e1df7588a5b7be9a0292899f94fe8cac1f94a017277474ca2e59df
F test/analyze3.test 8b3ef8ba6d1096b76c40e0925c0fe51e700d2b779cdda40914580de3f9b9d80f
F test/analyze3.test ff62d9029e6deb2c914490c6b00caf7fae47cc85cdc046e4a0d0a4d4b87c71d8
F test/analyze4.test eff2df19b8dd84529966420f29ea52edc6b56213
F test/analyze5.test 765c4e284aa69ca172772aa940946f55629bc8c4
F test/analyze6.test f1c552ce39cca4ec922a7e4e0e5d0203d6b3281f
F test/analyze7.test bb1409afc9e8629e414387ef048b8e0e3e0bdc4f
F test/analyze8.test c05a461d0a6b05991106467d0c47480f2e709c82
F test/analyze9.test dac0bdc7eab965b9ad639ca83564d98717aaf13ce5a776f23d9a3680238cecd8
F test/analyze9.test 9fbf0e0101eef4f5dc149769aa14e10b76ee06e7c28598264b32173cd1999a54
F test/analyzeA.test 3335697f6700c7052295cfd0067fc5b2aacddf9a
F test/analyzeB.test a4c1c3048f6d9e090eb76e83eecb18bcf6d31a70
F test/analyzeC.test 555a6cc388b9818b6eda6df816f01ce0a75d3a93
@ -791,7 +791,7 @@ F test/enc.test e54531cd6bf941ee6760be041dff19a104c7acea
F test/enc2.test 83437a79ba1545a55fb549309175c683fb334473
F test/enc3.test 6807f7a7740a00361ca8d0ccd66bc60c8dc5f2b6
F test/enc4.test c8f1ce3618508fd0909945beb8b8831feef2c020
F test/eqp.test 3fe051af50921284189d1970eb653f9fcf5117d2
F test/eqp.test 0d06518e010ca5f02bd56b6a45fb70514a29c7eb97d244d72826d164477cfb1e
F test/errmsg.test eae9f091eb39ce7e20305de45d8e5d115b68fa856fba4ea6757b6ca3705ff7f9
F test/eval.test a64c9105d6ff163df7cf09d6ac29cdad5922078c
F test/exclusive.test 1206b87e192497d78c7f35552e86a9d05421498da300fb1cce5ca5351ccde3c3
@ -1316,7 +1316,7 @@ F test/temptable.test d2c9b87a54147161bcd1822e30c1d1cd891e5b30
F test/temptable2.test d2940417496e2b9548e01d09990763fbe88c316504033256d51493e1f1a5ce6a
F test/temptable3.test d11a0974e52b347e45ee54ef1923c91ed91e4637
F test/temptrigger.test 38f0ca479b1822d3117069e014daabcaacefffcc
F test/tester.tcl 94901a4625d9a2229666dd5c44120ddf7f0fb639470710ef74a4cefc7b039e07
F test/tester.tcl aa7558f20fcf7dd9151325f849d9103bd450235093bc078073bf0f080991e3c4
F test/thread001.test b61a29dd87cf669f5f6ac96124a7c97d71b0c80d9012746072055877055cf9ef
F test/thread002.test e630504f8a06c00bf8bbe68528774dd96aeb2e58
F test/thread003.test ee4c9efc3b86a6a2767516a37bd64251272560a7
@ -1727,7 +1727,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 70b48a7972dfbb44af3ccd8ccd830e984bec88d80a78b3566a5de86a16e7fc14
R 21b35e2f4fb3267c4b0452fc48ac12e8
P 699a77e479010a331b0423f157a2fbfc373688e3d0d04ae5e64376c00cb3d488
R 5835567753900691e5cf824409193ffc
U drh
Z 26b206c16e8cc64ca80991a86c32cf32
Z eb3edd9f2f9ef18dad6eafce24ad9bb2

2
manifest.uuid
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@ -1 +1 @@
699a77e479010a331b0423f157a2fbfc373688e3d0d04ae5e64376c00cb3d488
82ca44b82fed6814c84440ba8bfaa019488ab956e84ac165180e2fcece6facb2

2
src/prepare.c
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@ -616,7 +616,7 @@ static int sqlite3Prepare(
if( rc==SQLITE_OK && sParse.pVdbe && sParse.explain ){
static const char * const azColName[] = {
"addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment",
"selectid", "order", "from", "detail"
"id", "parent", "notused", "detail"
};
int iFirst, mx;
if( sParse.explain==2 ){

412
src/select.c
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@ -2487,231 +2487,237 @@ static int multiSelect(
*/
if( p->pOrderBy ){
return multiSelectOrderBy(pParse, p, pDest);
}else
}else{
#ifndef SQLITE_OMIT_EXPLAIN
if( pPrior->pPrior==0 ){
ExplainQueryPlan((pParse, 1, "COMPOUND QUERY"));
ExplainQueryPlan((pParse, 1, "LEFT-MOST SUBQUERY"));
ExplainQueryPlanSetId(pParse, pPrior);
}
if( p->pNext==0 ){
ExplainQueryPlan((pParse, 1, "COMPOUND QUERY"));
}
if( pPrior->pPrior==0 ){
ExplainQueryPlan((pParse, 1, "LEFT-MOST SUBQUERY"));
ExplainQueryPlanSetId(pParse, pPrior);
}
#endif
/* Generate code for the left and right SELECT statements.
*/
switch( p->op ){
case TK_ALL: {
int addr = 0;
int nLimit;
assert( !pPrior->pLimit );
pPrior->iLimit = p->iLimit;
pPrior->iOffset = p->iOffset;
pPrior->pLimit = p->pLimit;
rc = sqlite3Select(pParse, pPrior, &dest);
p->pLimit = 0;
if( rc ){
goto multi_select_end;
}
p->pPrior = 0;
p->iLimit = pPrior->iLimit;
p->iOffset = pPrior->iOffset;
if( p->iLimit ){
addr = sqlite3VdbeAddOp1(v, OP_IfNot, p->iLimit); VdbeCoverage(v);
VdbeComment((v, "Jump ahead if LIMIT reached"));
if( p->iOffset ){
sqlite3VdbeAddOp3(v, OP_OffsetLimit,
p->iLimit, p->iOffset+1, p->iOffset);
/* Generate code for the left and right SELECT statements.
*/
switch( p->op ){
case TK_ALL: {
int addr = 0;
int nLimit;
assert( !pPrior->pLimit );
pPrior->iLimit = p->iLimit;
pPrior->iOffset = p->iOffset;
pPrior->pLimit = p->pLimit;
rc = sqlite3Select(pParse, pPrior, &dest);
p->pLimit = 0;
if( rc ){
goto multi_select_end;
}
p->pPrior = 0;
p->iLimit = pPrior->iLimit;
p->iOffset = pPrior->iOffset;
if( p->iLimit ){
addr = sqlite3VdbeAddOp1(v, OP_IfNot, p->iLimit); VdbeCoverage(v);
VdbeComment((v, "Jump ahead if LIMIT reached"));
if( p->iOffset ){
sqlite3VdbeAddOp3(v, OP_OffsetLimit,
p->iLimit, p->iOffset+1, p->iOffset);
}
}
ExplainQueryPlan((pParse, 1, "UNION ALL"));
ExplainQueryPlanSetId(pParse, p);
rc = sqlite3Select(pParse, p, &dest);
testcase( rc!=SQLITE_OK );
pDelete = p->pPrior;
p->pPrior = pPrior;
p->nSelectRow = sqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
if( pPrior->pLimit
&& sqlite3ExprIsInteger(pPrior->pLimit->pLeft, &nLimit)
&& nLimit>0 && p->nSelectRow > sqlite3LogEst((u64)nLimit)
){
p->nSelectRow = sqlite3LogEst((u64)nLimit);
}
if( addr ){
sqlite3VdbeJumpHere(v, addr);
}
break;
}
ExplainQueryPlan((pParse, 1, "UNION ALL"));
ExplainQueryPlanSetId(pParse, p);
rc = sqlite3Select(pParse, p, &dest);
testcase( rc!=SQLITE_OK );
pDelete = p->pPrior;
p->pPrior = pPrior;
p->nSelectRow = sqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
if( pPrior->pLimit
&& sqlite3ExprIsInteger(pPrior->pLimit->pLeft, &nLimit)
&& nLimit>0 && p->nSelectRow > sqlite3LogEst((u64)nLimit)
){
p->nSelectRow = sqlite3LogEst((u64)nLimit);
}
if( addr ){
sqlite3VdbeJumpHere(v, addr);
}
break;
}
case TK_EXCEPT:
case TK_UNION: {
int unionTab; /* Cursor number of the temporary table holding result */
u8 op = 0; /* One of the SRT_ operations to apply to self */
int priorOp; /* The SRT_ operation to apply to prior selects */
Expr *pLimit; /* Saved values of p->nLimit */
int addr;
SelectDest uniondest;
testcase( p->op==TK_EXCEPT );
testcase( p->op==TK_UNION );
priorOp = SRT_Union;
if( dest.eDest==priorOp ){
/* We can reuse a temporary table generated by a SELECT to our
** right.
case TK_EXCEPT:
case TK_UNION: {
int unionTab; /* Cursor number of the temp table holding result */
u8 op = 0; /* One of the SRT_ operations to apply to self */
int priorOp; /* The SRT_ operation to apply to prior selects */
Expr *pLimit; /* Saved values of p->nLimit */
int addr;
SelectDest uniondest;
testcase( p->op==TK_EXCEPT );
testcase( p->op==TK_UNION );
priorOp = SRT_Union;
if( dest.eDest==priorOp ){
/* We can reuse a temporary table generated by a SELECT to our
** right.
*/
assert( p->pLimit==0 ); /* Not allowed on leftward elements */
unionTab = dest.iSDParm;
}else{
/* We will need to create our own temporary table to hold the
** intermediate results.
*/
unionTab = pParse->nTab++;
assert( p->pOrderBy==0 );
addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, unionTab, 0);
assert( p->addrOpenEphm[0] == -1 );
p->addrOpenEphm[0] = addr;
findRightmost(p)->selFlags |= SF_UsesEphemeral;
assert( p->pEList );
}
/* Code the SELECT statements to our left
*/
assert( p->pLimit==0 ); /* Not allowed on leftward elements */
unionTab = dest.iSDParm;
}else{
/* We will need to create our own temporary table to hold the
** intermediate results.
assert( !pPrior->pOrderBy );
sqlite3SelectDestInit(&uniondest, priorOp, unionTab);
rc = sqlite3Select(pParse, pPrior, &uniondest);
if( rc ){
goto multi_select_end;
}
/* Code the current SELECT statement
*/
unionTab = pParse->nTab++;
if( p->op==TK_EXCEPT ){
op = SRT_Except;
}else{
assert( p->op==TK_UNION );
op = SRT_Union;
}
p->pPrior = 0;
pLimit = p->pLimit;
p->pLimit = 0;
uniondest.eDest = op;
ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE",
selectOpName(p->op)));
ExplainQueryPlanSetId(pParse, p);
rc = sqlite3Select(pParse, p, &uniondest);
testcase( rc!=SQLITE_OK );
/* Query flattening in sqlite3Select() might refill p->pOrderBy.
** Be sure to delete p->pOrderBy, therefore, to avoid a memory leak. */
sqlite3ExprListDelete(db, p->pOrderBy);
pDelete = p->pPrior;
p->pPrior = pPrior;
p->pOrderBy = 0;
if( p->op==TK_UNION ){
p->nSelectRow = sqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
}
sqlite3ExprDelete(db, p->pLimit);
p->pLimit = pLimit;
p->iLimit = 0;
p->iOffset = 0;
/* Convert the data in the temporary table into whatever form
** it is that we currently need.
*/
assert( unionTab==dest.iSDParm || dest.eDest!=priorOp );
if( dest.eDest!=priorOp ){
int iCont, iBreak, iStart;
assert( p->pEList );
iBreak = sqlite3VdbeMakeLabel(v);
iCont = sqlite3VdbeMakeLabel(v);
computeLimitRegisters(pParse, p, iBreak);
sqlite3VdbeAddOp2(v, OP_Rewind, unionTab, iBreak); VdbeCoverage(v);
iStart = sqlite3VdbeCurrentAddr(v);
selectInnerLoop(pParse, p, unionTab,
0, 0, &dest, iCont, iBreak);
sqlite3VdbeResolveLabel(v, iCont);
sqlite3VdbeAddOp2(v, OP_Next, unionTab, iStart); VdbeCoverage(v);
sqlite3VdbeResolveLabel(v, iBreak);
sqlite3VdbeAddOp2(v, OP_Close, unionTab, 0);
}
break;
}
default: assert( p->op==TK_INTERSECT ); {
int tab1, tab2;
int iCont, iBreak, iStart;
Expr *pLimit;
int addr;
SelectDest intersectdest;
int r1;
/* INTERSECT is different from the others since it requires
** two temporary tables. Hence it has its own case. Begin
** by allocating the tables we will need.
*/
tab1 = pParse->nTab++;
tab2 = pParse->nTab++;
assert( p->pOrderBy==0 );
addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, unionTab, 0);
addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, tab1, 0);
assert( p->addrOpenEphm[0] == -1 );
p->addrOpenEphm[0] = addr;
findRightmost(p)->selFlags |= SF_UsesEphemeral;
assert( p->pEList );
}
/* Code the SELECT statements to our left
*/
assert( !pPrior->pOrderBy );
sqlite3SelectDestInit(&uniondest, priorOp, unionTab);
rc = sqlite3Select(pParse, pPrior, &uniondest);
if( rc ){
goto multi_select_end;
}
/* Code the current SELECT statement
*/
if( p->op==TK_EXCEPT ){
op = SRT_Except;
}else{
assert( p->op==TK_UNION );
op = SRT_Union;
}
p->pPrior = 0;
pLimit = p->pLimit;
p->pLimit = 0;
uniondest.eDest = op;
ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE",
selectOpName(p->op)));
ExplainQueryPlanSetId(pParse, p);
rc = sqlite3Select(pParse, p, &uniondest);
testcase( rc!=SQLITE_OK );
/* Query flattening in sqlite3Select() might refill p->pOrderBy.
** Be sure to delete p->pOrderBy, therefore, to avoid a memory leak. */
sqlite3ExprListDelete(db, p->pOrderBy);
pDelete = p->pPrior;
p->pPrior = pPrior;
p->pOrderBy = 0;
if( p->op==TK_UNION ){
p->nSelectRow = sqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
}
sqlite3ExprDelete(db, p->pLimit);
p->pLimit = pLimit;
p->iLimit = 0;
p->iOffset = 0;
/* Convert the data in the temporary table into whatever form
** it is that we currently need.
*/
assert( unionTab==dest.iSDParm || dest.eDest!=priorOp );
if( dest.eDest!=priorOp ){
int iCont, iBreak, iStart;
/* Code the SELECTs to our left into temporary table "tab1".
*/
sqlite3SelectDestInit(&intersectdest, SRT_Union, tab1);
rc = sqlite3Select(pParse, pPrior, &intersectdest);
if( rc ){
goto multi_select_end;
}
/* Code the current SELECT into temporary table "tab2"
*/
addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, tab2, 0);
assert( p->addrOpenEphm[1] == -1 );
p->addrOpenEphm[1] = addr;
p->pPrior = 0;
pLimit = p->pLimit;
p->pLimit = 0;
intersectdest.iSDParm = tab2;
ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE",
selectOpName(p->op)));
ExplainQueryPlanSetId(pParse, p);
rc = sqlite3Select(pParse, p, &intersectdest);
testcase( rc!=SQLITE_OK );
pDelete = p->pPrior;
p->pPrior = pPrior;
if( p->nSelectRow>pPrior->nSelectRow ){
p->nSelectRow = pPrior->nSelectRow;
}
sqlite3ExprDelete(db, p->pLimit);
p->pLimit = pLimit;
/* Generate code to take the intersection of the two temporary
** tables.
*/
assert( p->pEList );
iBreak = sqlite3VdbeMakeLabel(v);
iCont = sqlite3VdbeMakeLabel(v);
computeLimitRegisters(pParse, p, iBreak);
sqlite3VdbeAddOp2(v, OP_Rewind, unionTab, iBreak); VdbeCoverage(v);
iStart = sqlite3VdbeCurrentAddr(v);
selectInnerLoop(pParse, p, unionTab,
sqlite3VdbeAddOp2(v, OP_Rewind, tab1, iBreak); VdbeCoverage(v);
r1 = sqlite3GetTempReg(pParse);
iStart = sqlite3VdbeAddOp2(v, OP_RowData, tab1, r1);
sqlite3VdbeAddOp4Int(v, OP_NotFound, tab2, iCont, r1, 0);
VdbeCoverage(v);
sqlite3ReleaseTempReg(pParse, r1);
selectInnerLoop(pParse, p, tab1,
0, 0, &dest, iCont, iBreak);
sqlite3VdbeResolveLabel(v, iCont);
sqlite3VdbeAddOp2(v, OP_Next, unionTab, iStart); VdbeCoverage(v);
sqlite3VdbeAddOp2(v, OP_Next, tab1, iStart); VdbeCoverage(v);
sqlite3VdbeResolveLabel(v, iBreak);
sqlite3VdbeAddOp2(v, OP_Close, unionTab, 0);
sqlite3VdbeAddOp2(v, OP_Close, tab2, 0);
sqlite3VdbeAddOp2(v, OP_Close, tab1, 0);
break;
}
break;
}
default: assert( p->op==TK_INTERSECT ); {
int tab1, tab2;
int iCont, iBreak, iStart;
Expr *pLimit;
int addr;
SelectDest intersectdest;
int r1;
/* INTERSECT is different from the others since it requires
** two temporary tables. Hence it has its own case. Begin
** by allocating the tables we will need.
*/
tab1 = pParse->nTab++;
tab2 = pParse->nTab++;
assert( p->pOrderBy==0 );
addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, tab1, 0);
assert( p->addrOpenEphm[0] == -1 );
p->addrOpenEphm[0] = addr;
findRightmost(p)->selFlags |= SF_UsesEphemeral;
assert( p->pEList );
/* Code the SELECTs to our left into temporary table "tab1".
*/
sqlite3SelectDestInit(&intersectdest, SRT_Union, tab1);
rc = sqlite3Select(pParse, pPrior, &intersectdest);
if( rc ){
goto multi_select_end;
}
/* Code the current SELECT into temporary table "tab2"
*/
addr = sqlite3VdbeAddOp2(v, OP_OpenEphemeral, tab2, 0);
assert( p->addrOpenEphm[1] == -1 );
p->addrOpenEphm[1] = addr;
p->pPrior = 0;
pLimit = p->pLimit;
p->pLimit = 0;
intersectdest.iSDParm = tab2;
ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE",
selectOpName(p->op)));
ExplainQueryPlanSetId(pParse, p);
rc = sqlite3Select(pParse, p, &intersectdest);
testcase( rc!=SQLITE_OK );
pDelete = p->pPrior;
p->pPrior = pPrior;
if( p->nSelectRow>pPrior->nSelectRow ) p->nSelectRow = pPrior->nSelectRow;
sqlite3ExprDelete(db, p->pLimit);
p->pLimit = pLimit;
/* Generate code to take the intersection of the two temporary
** tables.
*/
assert( p->pEList );
iBreak = sqlite3VdbeMakeLabel(v);
iCont = sqlite3VdbeMakeLabel(v);
computeLimitRegisters(pParse, p, iBreak);
sqlite3VdbeAddOp2(v, OP_Rewind, tab1, iBreak); VdbeCoverage(v);
r1 = sqlite3GetTempReg(pParse);
iStart = sqlite3VdbeAddOp2(v, OP_RowData, tab1, r1);
sqlite3VdbeAddOp4Int(v, OP_NotFound, tab2, iCont, r1, 0); VdbeCoverage(v);
sqlite3ReleaseTempReg(pParse, r1);
selectInnerLoop(pParse, p, tab1,
0, 0, &dest, iCont, iBreak);
sqlite3VdbeResolveLabel(v, iCont);
sqlite3VdbeAddOp2(v, OP_Next, tab1, iStart); VdbeCoverage(v);
sqlite3VdbeResolveLabel(v, iBreak);
sqlite3VdbeAddOp2(v, OP_Close, tab2, 0);
sqlite3VdbeAddOp2(v, OP_Close, tab1, 0);
break;
#ifndef SQLITE_OMIT_EXPLAIN
if( p->pNext==0 ){
ExplainQueryPlanPop(pParse);
}
#endif
}
#ifndef SQLITE_OMIT_EXPLAIN
if( p->pNext==0 ){
ExplainQueryPlanPop(pParse);
}
#endif
/* Compute collating sequences used by
** temporary tables needed to implement the compound select.
** Attach the KeyInfo structure to all temporary tables.
@ -5566,7 +5572,7 @@ int sqlite3Select(
VdbeComment((v, "%s", pItem->pTab->zName));
pItem->addrFillSub = addrTop;
sqlite3SelectDestInit(&dest, SRT_Coroutine, pItem->regReturn);
ExplainQueryPlan((pParse, 1, "CO-ROUTINE %p", pSub));
ExplainQueryPlan((pParse, 1, "CO-ROUTINE 0x%p", pSub));
ExplainQueryPlanSetId(pParse, pSub);
sqlite3Select(pParse, pSub, &dest);
pItem->pTab->nRowLogEst = pSub->nSelectRow;
@ -5606,7 +5612,7 @@ int sqlite3Select(
pSub->nSelectRow = pPrior->pSelect->nSelectRow;
}else{
sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);
ExplainQueryPlan((pParse, 1, "MATERIALIZE %p", pSub));
ExplainQueryPlan((pParse, 1, "MATERIALIZE 0x%p", pSub));
ExplainQueryPlanSetId(pParse,pSub);
sqlite3Select(pParse, pSub, &dest);
}

3
src/sqliteInt.h
View File

@ -2823,8 +2823,7 @@ struct Select {
#define SF_MaybeConvert 0x08000 /* Need convertCompoundSelectToSubquery() */
#define SF_Converted 0x10000 /* By convertCompoundSelectToSubquery() */
#define SF_IncludeHidden 0x20000 /* Include hidden columns in output */
#define SF_ComplexResult 0x40000 /* Result set contains subquery or function */
#define SF_ComplexResult 0x40000 /* Result contains subquery or function */
/*
** The results of a SELECT can be distributed in several ways, as defined

2
src/wherecode.c
View File

@ -152,7 +152,7 @@ int sqlite3WhereExplainOneScan(
sqlite3StrAccumInit(&str, db, zBuf, sizeof(zBuf), SQLITE_MAX_LENGTH);
sqlite3StrAccumAppendAll(&str, isSearch ? "SEARCH" : "SCAN");
if( pItem->pSelect ){
sqlite3XPrintf(&str, " SUBQUERY %p", pItem->pSelect);
sqlite3XPrintf(&str, " SUBQUERY 0x%p", pItem->pSelect);
}else{
sqlite3XPrintf(&str, " TABLE %s", pItem->zName);
}

30
test/analyze3.test
View File

@ -118,10 +118,10 @@ do_execsql_test analyze3-1.1.x {
#
do_eqp_test analyze3-1.1.2 {
SELECT sum(y) FROM t1 WHERE x>200 AND x<300
} {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}}
} {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}
do_eqp_test analyze3-1.1.3 {
SELECT sum(y) FROM t1 WHERE x>0 AND x<1100
} {0 0 0 {SCAN TABLE t1}}
} {SCAN TABLE t1}
# 2017-06-26: Verify that the SQLITE_DBCONFIG_ENABLE_QPSG setting disables
# the use of bound parameters by STAT4
@ -131,27 +131,27 @@ unset -nocomplain l
unset -nocomplain u
do_eqp_test analyze3-1.1.3.100 {
SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
} {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}}
} {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}
set l 200
set u 300
do_eqp_test analyze3-1.1.3.101 {
SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
} {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}}
} {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}
set l 0
set u 1100
do_eqp_test analyze3-1.1.3.102 {
SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
} {0 0 0 {SCAN TABLE t1}}
} {SCAN TABLE t1}
db cache flush
sqlite3_db_config db ENABLE_QPSG 1
do_eqp_test analyze3-1.1.3.103 {
SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
} {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}}
} {SEARCH TABLE t1 USING INDEX i1 (x>? AND x<?)}
db cache flush
sqlite3_db_config db ENABLE_QPSG 0
do_eqp_test analyze3-1.1.3.104 {
SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
} {0 0 0 {SCAN TABLE t1}}
} {SCAN TABLE t1}
do_test analyze3-1.1.4 {
sf_execsql { SELECT sum(y) FROM t1 WHERE x>200 AND x<300 }
@ -201,10 +201,10 @@ do_execsql_test analyze3-2.1.x {
} {200 990}
do_eqp_test analyze3-1.2.2 {
SELECT sum(y) FROM t2 WHERE x>1 AND x<2
} {0 0 0 {SEARCH TABLE t2 USING INDEX i2 (x>? AND x<?)}}
} {SEARCH TABLE t2 USING INDEX i2 (x>? AND x<?)}
do_eqp_test analyze3-1.2.3 {
SELECT sum(y) FROM t2 WHERE x>0 AND x<99
} {0 0 0 {SCAN TABLE t2}}
} {SCAN TABLE t2}
do_test analyze3-1.2.4 {
sf_execsql { SELECT sum(y) FROM t2 WHERE x>12 AND x<20 }
@ -253,10 +253,10 @@ do_execsql_test analyze3-1.3.x {
} {99 1000}
do_eqp_test analyze3-1.3.2 {
SELECT sum(y) FROM t3 WHERE x>200 AND x<300
} {0 0 0 {SEARCH TABLE t3 USING INDEX i3 (x>? AND x<?)}}
} {SEARCH TABLE t3 USING INDEX i3 (x>? AND x<?)}
do_eqp_test analyze3-1.3.3 {
SELECT sum(y) FROM t3 WHERE x>0 AND x<1100
} {0 0 0 {SCAN TABLE t3}}
} {SCAN TABLE t3}
do_test analyze3-1.3.4 {
sf_execsql { SELECT sum(y) FROM t3 WHERE x>200 AND x<300 }
@ -308,10 +308,10 @@ do_test analyze3-2.1 {
} {}
do_eqp_test analyze3-2.2 {
SELECT count(a) FROM t1 WHERE b LIKE 'a%'
} {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (b>? AND b<?)}}
} {SEARCH TABLE t1 USING INDEX i1 (b>? AND b<?)}
do_eqp_test analyze3-2.3 {
SELECT count(a) FROM t1 WHERE b LIKE '%a'
} {0 0 0 {SCAN TABLE t1}}
} {SCAN TABLE t1}
# Return the first argument if like_match_blobs is true (the default)
# or the second argument if not
@ -698,11 +698,11 @@ do_test analyze3-6.1 {
do_eqp_test analyze3-6-3 {
SELECT * FROM t1 WHERE a = 5 AND c = 13;
} {0 0 0 {SEARCH TABLE t1 USING INDEX i2 (c=?)}}
} {SEARCH TABLE t1 USING INDEX i2 (c=?)}
do_eqp_test analyze3-6-2 {
SELECT * FROM t1 WHERE a = 5 AND b > 'w' AND c = 13;
} {0 0 0 {SEARCH TABLE t1 USING INDEX i2 (c=?)}}
} {SEARCH TABLE t1 USING INDEX i2 (c=?)}
#-----------------------------------------------------------------------------
# 2015-04-20.

42
test/analyze9.test
View File

@ -987,7 +987,8 @@ do_eqp_test 21.3 {
reset_db
do_execsql_test 22.0 {
CREATE TABLE t3(a, b, c, d, PRIMARY KEY(a, b)) WITHOUT ROWID;
}
SELECT * FROM t3;
} {}
do_execsql_test 22.1 {
WITH r(x) AS (
SELECT 1
@ -1055,15 +1056,11 @@ do_eqp_test 23.1 {
-- Formerly used index i41. But i41 is not a covering index whereas
-- the PRIMARY KEY is a covering index, and so as of 2017-10-15, the
-- PRIMARY KEY is preferred.
} {
0 0 0 {SEARCH TABLE t4 USING PRIMARY KEY (c=? AND b=? AND a<?)}
}
} {SEARCH TABLE t4 USING PRIMARY KEY (c=? AND b=? AND a<?)}
do_eqp_test 23.2 {
SELECT * FROM t4 WHERE
(e=1 AND b='xyz' AND c='zyx' AND a<'JJJ') AND f<300
} {
0 0 0 {SEARCH TABLE t4 USING INDEX i42 (f<?)}
}
} {SEARCH TABLE t4 USING INDEX i42 (f<?)}
do_execsql_test 24.0 {
CREATE TABLE t5(c, d, b, e, a, PRIMARY KEY(a, b, c)) WITHOUT ROWID;
@ -1108,33 +1105,26 @@ ifcapable stat4&&cte {
# Term (b<?) is estimated at 25%. Better than (a<30) but not as
# good as (a<20).
do_eqp_test 25.2.1 { SELECT * FROM t6 WHERE a<30 AND b<? } {
0 0 0 {SEARCH TABLE t6 USING INDEX bb (b<?)}
}
do_eqp_test 25.2.2 { SELECT * FROM t6 WHERE a<20 AND b<? } {
0 0 0 {SEARCH TABLE t6 USING INDEX aa (a<?)}
}
do_eqp_test 25.2.1 { SELECT * FROM t6 WHERE a<30 AND b<? } \
{SEARCH TABLE t6 USING INDEX bb (b<?)}
do_eqp_test 25.2.2 { SELECT * FROM t6 WHERE a<20 AND b<? } \
{SEARCH TABLE t6 USING INDEX aa (a<?)}
# Term (b BETWEEN ? AND ?) is estimated at 1/64.
do_eqp_test 25.3.1 {
SELECT * FROM t6 WHERE a BETWEEN 5 AND 10 AND b BETWEEN ? AND ?
} {
0 0 0 {SEARCH TABLE t6 USING INDEX bb (b>? AND b<?)}
}
} {SEARCH TABLE t6 USING INDEX bb (b>? AND b<?)}
# Term (b BETWEEN ? AND 60) is estimated to return roughly 15 rows -
# 60 from (b<=60) multiplied by 0.25 for the b>=? term. Better than
# (a<20) but not as good as (a<10).
do_eqp_test 25.4.1 {
SELECT * FROM t6 WHERE a < 10 AND (b BETWEEN ? AND 60)
} {
0 0 0 {SEARCH TABLE t6 USING INDEX aa (a<?)}
}
} {SEARCH TABLE t6 USING INDEX aa (a<?)}
do_eqp_test 25.4.2 {
SELECT * FROM t6 WHERE a < 20 AND (b BETWEEN ? AND 60)
} {
0 0 0 {SEARCH TABLE t6 USING INDEX bb (b>? AND b<?)}
}
} {SEARCH TABLE t6 USING INDEX bb (b>? AND b<?)}
}
#-------------------------------------------------------------------------
@ -1190,9 +1180,7 @@ do_execsql_test 26.1.3 {
#
do_eqp_test 26.1.4 {
SELECT * FROM t1 WHERE x = 10000 AND y < 50 AND z = 444;
} {
0 0 0 {SEARCH TABLE t1 USING INDEX t1z (z=?)}
}
} {SEARCH TABLE t1 USING INDEX t1z (z=?)}
# This test - 26.2.* - tests that another manifestation of the same problem
@ -1241,9 +1229,7 @@ do_execsql_test 26.2.1 {
do_eqp_test 26.2.2 {
SELECT * FROM t1 WHERE x='B' AND y>25 AND z=?;
} {
0 0 0 {SEARCH TABLE t1 USING INDEX i1 (x=? AND y>?)}
}
} {SEARCH TABLE t1 USING INDEX i1 (x=? AND y>?)}
finish_test

428
test/eqp.test
View File

@ -43,78 +43,102 @@ do_execsql_test 1.1 {
do_eqp_test 1.2 {
SELECT * FROM t2, t1 WHERE t1.a=1 OR t1.b=2;
} {
0 0 1 {SEARCH TABLE t1 USING INDEX i1 (a=?)}
0 0 1 {SEARCH TABLE t1 USING INDEX i2 (b=?)}
0 1 0 {SCAN TABLE t2}
QUERY PLAN
|--SEARCH TABLE t1 USING INDEX i1 (a=?)
|--SEARCH TABLE t1 USING INDEX i2 (b=?)
`--SCAN TABLE t2
}
do_eqp_test 1.3 {
SELECT * FROM t2 CROSS JOIN t1 WHERE t1.a=1 OR t1.b=2;
} {
0 0 0 {SCAN TABLE t2}
0 1 1 {SEARCH TABLE t1 USING INDEX i1 (a=?)}
0 1 1 {SEARCH TABLE t1 USING INDEX i2 (b=?)}
QUERY PLAN
|--SCAN TABLE t2
|--SEARCH TABLE t1 USING INDEX i1 (a=?)
`--SEARCH TABLE t1 USING INDEX i2 (b=?)
}
do_eqp_test 1.3 {
SELECT a FROM t1 ORDER BY a
} {
0 0 0 {SCAN TABLE t1 USING COVERING INDEX i1}
QUERY PLAN
`--SCAN TABLE t1 USING COVERING INDEX i1
}
do_eqp_test 1.4 {
SELECT a FROM t1 ORDER BY +a
} {
0 0 0 {SCAN TABLE t1 USING COVERING INDEX i1}
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--SCAN TABLE t1 USING COVERING INDEX i1
`--USE TEMP B-TREE FOR ORDER BY
}
do_eqp_test 1.5 {
SELECT a FROM t1 WHERE a=4
} {
0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i1 (a=?)}
QUERY PLAN
`--SEARCH TABLE t1 USING COVERING INDEX i1 (a=?)
}
do_eqp_test 1.6 {
SELECT DISTINCT count(*) FROM t3 GROUP BY a;
} {
0 0 0 {SCAN TABLE t3}
0 0 0 {USE TEMP B-TREE FOR GROUP BY}
0 0 0 {USE TEMP B-TREE FOR DISTINCT}
QUERY PLAN
|--SCAN TABLE t3
|--USE TEMP B-TREE FOR GROUP BY
`--USE TEMP B-TREE FOR DISTINCT
}
do_eqp_test 1.7 {
SELECT * FROM t3 JOIN (SELECT 1)
} {
0 0 1 {SCAN SUBQUERY 1}
0 1 0 {SCAN TABLE t3}
QUERY PLAN
|--MATERIALIZE xxxxxx
|--SCAN SUBQUERY xxxxxx
`--SCAN TABLE t3
}
do_eqp_test 1.8 {
SELECT * FROM t3 JOIN (SELECT 1 UNION SELECT 2)
} {
1 0 0 {COMPOUND SUBQUERIES 2 AND 3 USING TEMP B-TREE (UNION)}
0 0 1 {SCAN SUBQUERY 1}
0 1 0 {SCAN TABLE t3}
QUERY PLAN
|--MATERIALIZE xxxxxx
| `--COMPOUND QUERY
| |--LEFT-MOST SUBQUERY
| `--UNION USING TEMP B-TREE
|--SCAN SUBQUERY xxxxxx
`--SCAN TABLE t3
}
do_eqp_test 1.9 {
SELECT * FROM t3 JOIN (SELECT 1 EXCEPT SELECT a FROM t3 LIMIT 17)
} {
3 0 0 {SCAN TABLE t3}
1 0 0 {COMPOUND SUBQUERIES 2 AND 3 USING TEMP B-TREE (EXCEPT)}
0 0 1 {SCAN SUBQUERY 1}
0 1 0 {SCAN TABLE t3}
QUERY PLAN
|--MATERIALIZE xxxxxx
| `--COMPOUND QUERY
| |--LEFT-MOST SUBQUERY
| `--EXCEPT USING TEMP B-TREE
| `--SCAN TABLE t3
|--SCAN SUBQUERY xxxxxx
`--SCAN TABLE t3
}
do_eqp_test 1.10 {
SELECT * FROM t3 JOIN (SELECT 1 INTERSECT SELECT a FROM t3 LIMIT 17)
} {
3 0 0 {SCAN TABLE t3}
1 0 0 {COMPOUND SUBQUERIES 2 AND 3 USING TEMP B-TREE (INTERSECT)}
0 0 1 {SCAN SUBQUERY 1}
0 1 0 {SCAN TABLE t3}
QUERY PLAN
|--MATERIALIZE xxxxxx
| `--COMPOUND QUERY
| |--LEFT-MOST SUBQUERY
| `--INTERSECT USING TEMP B-TREE
| `--SCAN TABLE t3
|--SCAN SUBQUERY xxxxxx
`--SCAN TABLE t3
}
do_eqp_test 1.11 {
SELECT * FROM t3 JOIN (SELECT 1 UNION ALL SELECT a FROM t3 LIMIT 17)
} {
3 0 0 {SCAN TABLE t3}
1 0 0 {COMPOUND SUBQUERIES 2 AND 3 (UNION ALL)}
0 0 1 {SCAN SUBQUERY 1}
0 1 0 {SCAN TABLE t3}
QUERY PLAN
|--MATERIALIZE xxxxxx
| `--COMPOUND QUERY
| |--LEFT-MOST SUBQUERY
| `--UNION ALL
| `--SCAN TABLE t3
|--SCAN SUBQUERY xxxxxx
`--SCAN TABLE t3
}
#-------------------------------------------------------------------------
@ -129,48 +153,58 @@ do_execsql_test 2.1 {
}
det 2.2.1 "SELECT DISTINCT min(x), max(x) FROM t1 GROUP BY x ORDER BY 1" {
0 0 0 {SCAN TABLE t1}
0 0 0 {USE TEMP B-TREE FOR GROUP BY}
0 0 0 {USE TEMP B-TREE FOR DISTINCT}
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--SCAN TABLE t1
|--USE TEMP B-TREE FOR GROUP BY
|--USE TEMP B-TREE FOR DISTINCT
`--USE TEMP B-TREE FOR ORDER BY
}
det 2.2.2 "SELECT DISTINCT min(x), max(x) FROM t2 GROUP BY x ORDER BY 1" {
0 0 0 {SCAN TABLE t2 USING COVERING INDEX t2i1}
0 0 0 {USE TEMP B-TREE FOR DISTINCT}
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--SCAN TABLE t2 USING COVERING INDEX t2i1
|--USE TEMP B-TREE FOR DISTINCT
`--USE TEMP B-TREE FOR ORDER BY
}
det 2.2.3 "SELECT DISTINCT * FROM t1" {
0 0 0 {SCAN TABLE t1}
0 0 0 {USE TEMP B-TREE FOR DISTINCT}
QUERY PLAN
|--SCAN TABLE t1
`--USE TEMP B-TREE FOR DISTINCT
}
det 2.2.4 "SELECT DISTINCT * FROM t1, t2" {
0 0 0 {SCAN TABLE t1}
0 1 1 {SCAN TABLE t2}
0 0 0 {USE TEMP B-TREE FOR DISTINCT}
QUERY PLAN
|--SCAN TABLE t1
|--SCAN TABLE t2
`--USE TEMP B-TREE FOR DISTINCT
}
det 2.2.5 "SELECT DISTINCT * FROM t1, t2 ORDER BY t1.x" {
0 0 0 {SCAN TABLE t1}
0 1 1 {SCAN TABLE t2}
0 0 0 {USE TEMP B-TREE FOR DISTINCT}
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--SCAN TABLE t1
|--SCAN TABLE t2
|--USE TEMP B-TREE FOR DISTINCT
`--USE TEMP B-TREE FOR ORDER BY
}
det 2.2.6 "SELECT DISTINCT t2.x FROM t1, t2 ORDER BY t2.x" {
0 0 1 {SCAN TABLE t2 USING COVERING INDEX t2i1}
0 1 0 {SCAN TABLE t1}
QUERY PLAN
|--SCAN TABLE t2 USING COVERING INDEX t2i1
`--SCAN TABLE t1
}
det 2.3.1 "SELECT max(x) FROM t2" {
0 0 0 {SEARCH TABLE t2 USING COVERING INDEX t2i1}
QUERY PLAN
`--SEARCH TABLE t2 USING COVERING INDEX t2i1
}
det 2.3.2 "SELECT min(x) FROM t2" {
0 0 0 {SEARCH TABLE t2 USING COVERING INDEX t2i1}
QUERY PLAN
`--SEARCH TABLE t2 USING COVERING INDEX t2i1
}
det 2.3.3 "SELECT min(x), max(x) FROM t2" {
0 0 0 {SCAN TABLE t2 USING COVERING INDEX t2i1}
QUERY PLAN
`--SCAN TABLE t2 USING COVERING INDEX t2i1
}
det 2.4.1 "SELECT * FROM t1 WHERE rowid=?" {
0 0 0 {SEARCH TABLE t1 USING INTEGER PRIMARY KEY (rowid=?)}
QUERY PLAN
`--SEARCH TABLE t1 USING INTEGER PRIMARY KEY (rowid=?)
}
@ -181,40 +215,46 @@ det 2.4.1 "SELECT * FROM t1 WHERE rowid=?" {
do_eqp_test 3.1.1 {
SELECT (SELECT x FROM t1 AS sub) FROM t1;
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE SCALAR SUBQUERY 1}
1 0 0 {SCAN TABLE t1 AS sub}
QUERY PLAN
|--SCAN TABLE t1
`--SCALAR SUBQUERY
`--SCAN TABLE t1 AS sub
}
do_eqp_test 3.1.2 {
SELECT * FROM t1 WHERE (SELECT x FROM t1 AS sub);
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE SCALAR SUBQUERY 1}
1 0 0 {SCAN TABLE t1 AS sub}
QUERY PLAN
|--SCAN TABLE t1
`--SCALAR SUBQUERY
`--SCAN TABLE t1 AS sub
}
do_eqp_test 3.1.3 {
SELECT * FROM t1 WHERE (SELECT x FROM t1 AS sub ORDER BY y);
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE SCALAR SUBQUERY 1}
1 0 0 {SCAN TABLE t1 AS sub}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--SCAN TABLE t1
`--SCALAR SUBQUERY
|--SCAN TABLE t1 AS sub
`--USE TEMP B-TREE FOR ORDER BY
}
do_eqp_test 3.1.4 {
SELECT * FROM t1 WHERE (SELECT x FROM t2 ORDER BY x);
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE SCALAR SUBQUERY 1}
1 0 0 {SCAN TABLE t2 USING COVERING INDEX t2i1}
QUERY PLAN
|--SCAN TABLE t1
`--SCALAR SUBQUERY
`--SCAN TABLE t2 USING COVERING INDEX t2i1
}
det 3.2.1 {
SELECT * FROM (SELECT * FROM t1 ORDER BY x LIMIT 10) ORDER BY y LIMIT 5
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
0 0 0 {SCAN SUBQUERY 1}
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--CO-ROUTINE xxxxxx
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
|--SCAN SUBQUERY xxxxxx
`--USE TEMP B-TREE FOR ORDER BY
}
det 3.2.2 {
SELECT * FROM
@ -222,34 +262,40 @@ det 3.2.2 {
(SELECT * FROM t2 ORDER BY x LIMIT 10) AS x2
ORDER BY x2.y LIMIT 5
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2 USING INDEX t2i1}
0 0 0 {SCAN SUBQUERY 1 AS x1}
0 1 1 {SCAN SUBQUERY 2 AS x2}
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
QUERY PLAN
|--MATERIALIZE xxxxxx
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
|--MATERIALIZE xxxxxx
| `--SCAN TABLE t2 USING INDEX t2i1
|--SCAN SUBQUERY xxxxxx AS x1
|--SCAN SUBQUERY xxxxxx AS x2
`--USE TEMP B-TREE FOR ORDER BY
}
det 3.3.1 {
SELECT * FROM t1 WHERE y IN (SELECT y FROM t2)
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE LIST SUBQUERY 1}
1 0 0 {SCAN TABLE t2}
QUERY PLAN
|--SCAN TABLE t1
`--LIST SUBQUERY
`--SCAN TABLE t2
}
det 3.3.2 {
SELECT * FROM t1 WHERE y IN (SELECT y FROM t2 WHERE t1.x!=t2.x)
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE CORRELATED LIST SUBQUERY 1}
1 0 0 {SCAN TABLE t2}
QUERY PLAN
|--SCAN TABLE t1
`--CORRELATED LIST SUBQUERY
`--SCAN TABLE t2
}
det 3.3.3 {
SELECT * FROM t1 WHERE EXISTS (SELECT y FROM t2 WHERE t1.x!=t2.x)
} {
0 0 0 {SCAN TABLE t1}
0 0 0 {EXECUTE CORRELATED SCALAR SUBQUERY 1}
1 0 0 {SCAN TABLE t2}
QUERY PLAN
|--SCAN TABLE t1
`--CORRELATED SCALAR SUBQUERY
`--SCAN TABLE t2
}
#-------------------------------------------------------------------------
@ -258,119 +304,158 @@ det 3.3.3 {
do_eqp_test 4.1.1 {
SELECT * FROM t1 UNION ALL SELECT * FROM t2
} {
1 0 0 {SCAN TABLE t1}
2 0 0 {SCAN TABLE t2}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (UNION ALL)}
QUERY PLAN
`--COMPOUND QUERY
|--LEFT-MOST SUBQUERY
| `--SCAN TABLE t1
`--UNION ALL
`--SCAN TABLE t2
}
do_eqp_test 4.1.2 {
SELECT * FROM t1 UNION ALL SELECT * FROM t2 ORDER BY 2
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2}
2 0 0 {USE TEMP B-TREE FOR ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (UNION ALL)}
QUERY PLAN
`--MERGE (UNION ALL)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2
`--USE TEMP B-TREE FOR ORDER BY
}
do_eqp_test 4.1.3 {
SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY 2
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2}
2 0 0 {USE TEMP B-TREE FOR ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (UNION)}
QUERY PLAN
`--MERGE (UNION)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2
`--USE TEMP B-TREE FOR ORDER BY
}
do_eqp_test 4.1.4 {
SELECT * FROM t1 INTERSECT SELECT * FROM t2 ORDER BY 2
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2}
2 0 0 {USE TEMP B-TREE FOR ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (INTERSECT)}
QUERY PLAN
`--MERGE (INTERSECT)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2
`--USE TEMP B-TREE FOR ORDER BY
}
do_eqp_test 4.1.5 {
SELECT * FROM t1 EXCEPT SELECT * FROM t2 ORDER BY 2
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2}
2 0 0 {USE TEMP B-TREE FOR ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)}
QUERY PLAN
`--MERGE (EXCEPT)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2
`--USE TEMP B-TREE FOR ORDER BY
}
do_eqp_test 4.2.2 {
SELECT * FROM t1 UNION ALL SELECT * FROM t2 ORDER BY 1
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2 USING INDEX t2i1}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (UNION ALL)}
QUERY PLAN
`--MERGE (UNION ALL)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
`--SCAN TABLE t2 USING INDEX t2i1
}
do_eqp_test 4.2.3 {
SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY 1
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2 USING INDEX t2i1}
2 0 0 {USE TEMP B-TREE FOR RIGHT PART OF ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (UNION)}
QUERY PLAN
`--MERGE (UNION)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2 USING INDEX t2i1
`--USE TEMP B-TREE FOR RIGHT PART OF ORDER BY
}
do_eqp_test 4.2.4 {
SELECT * FROM t1 INTERSECT SELECT * FROM t2 ORDER BY 1
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2 USING INDEX t2i1}
2 0 0 {USE TEMP B-TREE FOR RIGHT PART OF ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (INTERSECT)}
QUERY PLAN
`--MERGE (INTERSECT)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2 USING INDEX t2i1
`--USE TEMP B-TREE FOR RIGHT PART OF ORDER BY
}
do_eqp_test 4.2.5 {
SELECT * FROM t1 EXCEPT SELECT * FROM t2 ORDER BY 1
} {
1 0 0 {SCAN TABLE t1}
1 0 0 {USE TEMP B-TREE FOR ORDER BY}
2 0 0 {SCAN TABLE t2 USING INDEX t2i1}
2 0 0 {USE TEMP B-TREE FOR RIGHT PART OF ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)}
QUERY PLAN
`--MERGE (EXCEPT)
|--LEFT
| |--SCAN TABLE t1
| `--USE TEMP B-TREE FOR ORDER BY
`--RIGHT
|--SCAN TABLE t2 USING INDEX t2i1
`--USE TEMP B-TREE FOR RIGHT PART OF ORDER BY
}
do_eqp_test 4.3.1 {
SELECT x FROM t1 UNION SELECT x FROM t2
} {
1 0 0 {SCAN TABLE t1}
2 0 0 {SCAN TABLE t2 USING COVERING INDEX t2i1}
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 USING TEMP B-TREE (UNION)}
QUERY PLAN
`--COMPOUND QUERY
|--LEFT-MOST SUBQUERY
| `--SCAN TABLE t1
`--UNION USING TEMP B-TREE
`--SCAN TABLE t2 USING COVERING INDEX t2i1
}
do_eqp_test 4.3.2 {
SELECT x FROM t1 UNION SELECT x FROM t2 UNION SELECT x FROM t1
} {
2 0 0 {SCAN TABLE t1}
3 0 0 {SCAN TABLE t2 USING COVERING INDEX t2i1}
1 0 0 {COMPOUND SUBQUERIES 2 AND 3 USING TEMP B-TREE (UNION)}
4 0 0 {SCAN TABLE t1}
0 0 0 {COMPOUND SUBQUERIES 1 AND 4 USING TEMP B-TREE (UNION)}
QUERY PLAN
`--COMPOUND QUERY
|--LEFT-MOST SUBQUERY
| `--SCAN TABLE t1
|--UNION USING TEMP B-TREE
| `--SCAN TABLE t2 USING COVERING INDEX t2i1
`--UNION USING TEMP B-TREE
`--SCAN TABLE t1
}
do_eqp_test 4.3.3 {
SELECT x FROM t1 UNION SELECT x FROM t2 UNION SELECT x FROM t1 ORDER BY 1
} {
2 0 0 {SCAN TABLE t1}
2 0 0 {USE TEMP B-TREE FOR ORDER BY}
3 0 0 {SCAN TABLE t2 USING COVERING INDEX t2i1}
1 0 0 {COMPOUND SUBQUERIES 2 AND 3 (UNION)}
4 0 0 {SCAN TABLE t1}
4 0 0 {USE TEMP B-TREE FOR ORDER BY}
0 0 0 {COMPOUND SUBQUERIES 1 AND 4 (UNION)}
QUERY PLAN
`--MERGE (UNION)
|--LEFT
| `--MERGE (UNION)
| |--LEFT
| | |--SCAN TABLE t1
| | `--USE TEMP B-TREE FOR ORDER BY
| `--RIGHT
| `--SCAN TABLE t2 USING COVERING INDEX t2i1
`--RIGHT
|--SCAN TABLE t1
`--USE TEMP B-TREE FOR ORDER BY
}
if 0 {
#-------------------------------------------------------------------------
# This next block of tests verifies that the examples on the
# lang_explain.html page are correct.
#
drop_all_tables
# EVIDENCE-OF: R-47779-47605 sqlite> EXPLAIN QUERY PLAN SELECT a, b
# XVIDENCE-OF: R-47779-47605 sqlite> EXPLAIN QUERY PLAN SELECT a, b
# FROM t1 WHERE a=1;
# 0|0|0|SCAN TABLE t1
#
@ -379,7 +464,7 @@ det 5.1.1 "SELECT a, b FROM t1 WHERE a=1" {
0 0 0 {SCAN TABLE t1}
}
# EVIDENCE-OF: R-55852-17599 sqlite> CREATE INDEX i1 ON t1(a);
# XVIDENCE-OF: R-55852-17599 sqlite> CREATE INDEX i1 ON t1(a);
# sqlite> EXPLAIN QUERY PLAN SELECT a, b FROM t1 WHERE a=1;
# 0|0|0|SEARCH TABLE t1 USING INDEX i1
#
@ -388,7 +473,7 @@ det 5.2.1 "SELECT a, b FROM t1 WHERE a=1" {
0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?)}
}
# EVIDENCE-OF: R-21179-11011 sqlite> CREATE INDEX i2 ON t1(a, b);
# XVIDENCE-OF: R-21179-11011 sqlite> CREATE INDEX i2 ON t1(a, b);
# sqlite> EXPLAIN QUERY PLAN SELECT a, b FROM t1 WHERE a=1;
# 0|0|0|SEARCH TABLE t1 USING COVERING INDEX i2 (a=?)
#
@ -397,7 +482,7 @@ det 5.3.1 "SELECT a, b FROM t1 WHERE a=1" {
0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i2 (a=?)}
}
# EVIDENCE-OF: R-09991-48941 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-09991-48941 sqlite> EXPLAIN QUERY PLAN
# SELECT t1.*, t2.* FROM t1, t2 WHERE t1.a=1 AND t1.b>2;
# 0|0|0|SEARCH TABLE t1 USING COVERING INDEX i2 (a=? AND b>?)
# 0|1|1|SCAN TABLE t2
@ -408,7 +493,7 @@ det 5.4.1 "SELECT t1.a, t2.c FROM t1, t2 WHERE t1.a=1 AND t1.b>2" {
0 1 1 {SCAN TABLE t2}
}
# EVIDENCE-OF: R-33626-61085 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-33626-61085 sqlite> EXPLAIN QUERY PLAN
# SELECT t1.*, t2.* FROM t2, t1 WHERE t1.a=1 AND t1.b>2;
# 0|0|1|SEARCH TABLE t1 USING COVERING INDEX i2 (a=? AND b>?)
# 0|1|0|SCAN TABLE t2
@ -418,7 +503,7 @@ det 5.5 "SELECT t1.a, t2.c FROM t2, t1 WHERE t1.a=1 AND t1.b>2" {
0 1 0 {SCAN TABLE t2}
}
# EVIDENCE-OF: R-04002-25654 sqlite> CREATE INDEX i3 ON t1(b);
# XVIDENCE-OF: R-04002-25654 sqlite> CREATE INDEX i3 ON t1(b);
# sqlite> EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=1 OR b=2;
# 0|0|0|SEARCH TABLE t1 USING COVERING INDEX i2 (a=?)
# 0|0|0|SEARCH TABLE t1 USING INDEX i3 (b=?)
@ -429,7 +514,7 @@ det 5.6.1 "SELECT a, b FROM t1 WHERE a=1 OR b=2" {
0 0 0 {SEARCH TABLE t1 USING INDEX i3 (b=?)}
}
# EVIDENCE-OF: R-24577-38891 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-24577-38891 sqlite> EXPLAIN QUERY PLAN
# SELECT c, d FROM t2 ORDER BY c;
# 0|0|0|SCAN TABLE t2
# 0|0|0|USE TEMP B-TREE FOR ORDER BY
@ -439,7 +524,7 @@ det 5.7 "SELECT c, d FROM t2 ORDER BY c" {
0 0 0 {USE TEMP B-TREE FOR ORDER BY}
}
# EVIDENCE-OF: R-58157-12355 sqlite> CREATE INDEX i4 ON t2(c);
# XVIDENCE-OF: R-58157-12355 sqlite> CREATE INDEX i4 ON t2(c);
# sqlite> EXPLAIN QUERY PLAN SELECT c, d FROM t2 ORDER BY c;
# 0|0|0|SCAN TABLE t2 USING INDEX i4
#
@ -448,7 +533,7 @@ det 5.8.1 "SELECT c, d FROM t2 ORDER BY c" {
0 0 0 {SCAN TABLE t2 USING INDEX i4}
}
# EVIDENCE-OF: R-13931-10421 sqlite> EXPLAIN QUERY PLAN SELECT
# XVIDENCE-OF: R-13931-10421 sqlite> EXPLAIN QUERY PLAN SELECT
# (SELECT b FROM t1 WHERE a=0), (SELECT a FROM t1 WHERE b=t2.c) FROM t2;
# 0|0|0|SCAN TABLE t2
# 0|0|0|EXECUTE SCALAR SUBQUERY 1
@ -466,7 +551,7 @@ det 5.9 {
2 0 0 {SEARCH TABLE t1 USING INDEX i3 (b=?)}
}
# EVIDENCE-OF: R-50892-45943 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-50892-45943 sqlite> EXPLAIN QUERY PLAN
# SELECT count(*) FROM (SELECT max(b) AS x FROM t1 GROUP BY a) GROUP BY x;
# 1|0|0|SCAN TABLE t1 USING COVERING INDEX i2
# 0|0|0|SCAN SUBQUERY 1
@ -480,7 +565,7 @@ det 5.10 {
0 0 0 {USE TEMP B-TREE FOR GROUP BY}
}
# EVIDENCE-OF: R-46219-33846 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-46219-33846 sqlite> EXPLAIN QUERY PLAN
# SELECT * FROM (SELECT * FROM t2 WHERE c=1), t1;
# 0|0|0|SEARCH TABLE t2 USING INDEX i4 (c=?)
# 0|1|1|SCAN TABLE t1
@ -490,7 +575,7 @@ det 5.11 "SELECT a, b FROM (SELECT * FROM t2 WHERE c=1), t1" {
0 1 1 {SCAN TABLE t1 USING COVERING INDEX i2}
}
# EVIDENCE-OF: R-37879-39987 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-37879-39987 sqlite> EXPLAIN QUERY PLAN
# SELECT a FROM t1 UNION SELECT c FROM t2;
# 1|0|0|SCAN TABLE t1
# 2|0|0|SCAN TABLE t2
@ -502,7 +587,7 @@ det 5.12 "SELECT a,b FROM t1 UNION SELECT c, 99 FROM t2" {
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 USING TEMP B-TREE (UNION)}
}
# EVIDENCE-OF: R-44864-63011 sqlite> EXPLAIN QUERY PLAN
# XVIDENCE-OF: R-44864-63011 sqlite> EXPLAIN QUERY PLAN
# SELECT a FROM t1 EXCEPT SELECT d FROM t2 ORDER BY 1;
# 1|0|0|SCAN TABLE t1 USING COVERING INDEX i2
# 2|0|0|SCAN TABLE t2 2|0|0|USE TEMP B-TREE FOR ORDER BY
@ -515,7 +600,6 @@ det 5.13 "SELECT a FROM t1 EXCEPT SELECT d FROM t2 ORDER BY 1" {
0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)}
}
if {![nonzero_reserved_bytes]} {
#-------------------------------------------------------------------------
# The following tests - eqp-6.* - test that the example C code on
@ -557,6 +641,7 @@ if {![nonzero_reserved_bytes]} {
0 0 0 COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)
}]
}
}
#-------------------------------------------------------------------------
# The following tests - eqp-7.* - test that queries that use the OP_Count
@ -571,11 +656,13 @@ do_execsql_test 7.0 {
}
det 7.1 "SELECT count(*) FROM t1" {
0 0 0 {SCAN TABLE t1}
QUERY PLAN
`--SCAN TABLE t1
}
det 7.2 "SELECT count(*) FROM t2" {
0 0 0 {SCAN TABLE t2 USING COVERING INDEX i1}
QUERY PLAN
`--SCAN TABLE t2 USING COVERING INDEX i1
}
do_execsql_test 7.3 {
@ -593,11 +680,13 @@ db close
sqlite3 db test.db
det 7.4 "SELECT count(*) FROM t1" {
0 0 0 {SCAN TABLE t1}
QUERY PLAN
`--SCAN TABLE t1
}
det 7.5 "SELECT count(*) FROM t2" {
0 0 0 {SCAN TABLE t2 USING COVERING INDEX i1}
QUERY PLAN
`--SCAN TABLE t2 USING COVERING INDEX i1
}
#-------------------------------------------------------------------------
@ -612,31 +701,38 @@ do_execsql_test 8.0 {
}
det 8.1.1 "SELECT * FROM t2" {
0 0 0 {SCAN TABLE t2}
QUERY PLAN
`--SCAN TABLE t2
}
det 8.1.2 "SELECT * FROM t2 WHERE rowid=?" {
0 0 0 {SEARCH TABLE t2 USING INTEGER PRIMARY KEY (rowid=?)}
QUERY PLAN
`--SEARCH TABLE t2 USING INTEGER PRIMARY KEY (rowid=?)
}
det 8.1.3 "SELECT count(*) FROM t2" {
0 0 0 {SCAN TABLE t2}
QUERY PLAN
`--SCAN TABLE t2
}
det 8.2.1 "SELECT * FROM t1" {
0 0 0 {SCAN TABLE t1}
QUERY PLAN
`--SCAN TABLE t1
}
det 8.2.2 "SELECT * FROM t1 WHERE b=?" {
0 0 0 {SEARCH TABLE t1 USING PRIMARY KEY (b=?)}
QUERY PLAN
`--SEARCH TABLE t1 USING PRIMARY KEY (b=?)
}
det 8.2.3 "SELECT * FROM t1 WHERE b=? AND c=?" {
0 0 0 {SEARCH TABLE t1 USING PRIMARY KEY (b=? AND c=?)}
QUERY PLAN
`--SEARCH TABLE t1 USING PRIMARY KEY (b=? AND c=?)
}
det 8.2.4 "SELECT count(*) FROM t1" {
0 0 0 {SCAN TABLE t1}
QUERY PLAN
`--SCAN TABLE t1
}

75
test/tester.tcl
View File

@ -959,10 +959,81 @@ proc do_timed_execsql_test {testname sql {result {}}} {
uplevel do_test [list $testname] [list "execsql_timed {$sql}"]\
[list [list {*}$result]]
}
proc do_eqp_test {name sql res} {
uplevel do_execsql_test $name [list "EXPLAIN QUERY PLAN $sql"] [list $res]
# Run an EXPLAIN QUERY PLAN $sql in database "db". Then rewrite the output
# as an ASCII-art graph and return a string that is that graph.
#
# Hexadecimal literals in the output text are converted into "xxxxxx" since those
# literals are pointer values that might very from one run of the test to the
# next, yet we want the output to be consistent.
#
proc query_plan_graph {sql} {
db eval "EXPLAIN QUERY PLAN $sql" {
set dx($id) $detail
lappend cx($parent) $id
}
set a "\n QUERY PLAN\n"
append a [append_graph " " dx cx 0]
return [regsub -all { 0x[A-F0-9]+\y} $a { xxxxxx}]
}
# Helper routine for [query_plan_graph SQL]:
#
# Output rows of the graph that are children of $level.
#
# prefix: Prepend to every output line
#
# dxname: Name of an array variable that stores text describe
# The description for $id is $dx($id)
#
# cxname: Name of an array variable holding children of item.
# Children of $id are $cx($id)
#
# level: Render all lines that are children of $level
#
proc append_graph {prefix dxname cxname level} {
upvar $dxname dx $cxname cx
set a ""
set x $cx($level)
set n [llength $x]
for {set i 0} {$i<$n} {incr i} {
set id [lindex $x $i]
if {$i==$n-1} {
set p1 "`--"
set p2 " "
} else {
set p1 "|--"
set p2 "| "
}
append a $prefix$p1$dx($id)\n
if {[info exists cx($id)]} {
append a [append_graph "$prefix$p2" dx cx $id]
}
}
return $a
}
# Do an EXPLAIN QUERY PLAN test on input $sql with expected results $res
#
# If $res begins with a "\s+QUERY PLAN\n" then it is assumed to be the
# complete graph which must match the output of [query_plan_graph $sql]
# exactly.
#
# If $res does not begin with "\s+QUERY PLAN\n" then take it is a string
# that must be found somewhere in the query plan output.
#
proc do_eqp_test {name sql res} {
if {[regexp {^\s+QUERY PLAN\n} $res]} {
uplevel do_test $name [list [list query_plan_graph $sql]] [list $res]
} else {
if {[string index $res 0]!="/"} {
set res "/*$res*/"
}
uplevel do_execsql_test $name [list "EXPLAIN QUERY PLAN $sql"] [list $res]
}
}
#-------------------------------------------------------------------------
# Usage: do_select_tests PREFIX ?SWITCHES? TESTLIST
#