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Simple fixes to PRAGMA analysis_limit.

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FossilOrigin-Name: c20d4fdee21409ebc9c65c9540af8ac48d1f4425499a6674ef9319655c192612
This commit is contained in:
drh
2020-04-01 01:15:16 +00:00
parent 49a76a8fe5
commit 31e3744ecb
3 changed files with 10 additions and 14 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Add\s"PRAGMA\sanalysis_limit=N;"\sto\slimit\sthe\snumber\sof\srows\svisited\sby\nANALYZE\swhen\sN\sis\spositive.\s\sPositive\sN\salso\sdisables\scollecting\sstat4.
D 2020-03-31T20:57:06.787
C Simple\sfixes\sto\sPRAGMA\sanalysis_limit.
D 2020-04-01T01:15:16.332
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -466,7 +466,7 @@ F sqlite.pc.in 42b7bf0d02e08b9e77734a47798d1a55a9e0716b
F sqlite3.1 fc7ad8990fc8409983309bb80de8c811a7506786
F sqlite3.pc.in 48fed132e7cb71ab676105d2a4dc77127d8c1f3a
F src/alter.c f48a4423c8f198d7f1ae4940f74b606707d05384ac79fb219be8e3323af2a2de
F src/analyze.c 4b139fa045d17192ba11ee97e6123cc011efbae690ec302f5d1eb53fd52d5ded
F src/analyze.c 05c99006dfc373a056b05a96539d86482684715b8840c097a6bbc83616c7cb50
F src/attach.c ff2daea0fe62080192e3f262670e4f61f5a86c1e7bea9cec34e960fe79852aa1
F src/auth.c a3d5bfdba83d25abed1013a8c7a5f204e2e29b0c25242a56bc02bb0c07bf1e06
F src/backup.c 5e617c087f1c2d6005c2ec694ce80d6e16bc68d906e1b1c556d7c7c2228b636b
@@ -1860,7 +1860,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P c705ce266ad25af71791035590875f0ea9f2c72826b3eda17f065d2bf091de92
R 89edd918806457e430236657da896c8f
P a279b151c1623807774daf4975175c62ea252eefb71f9820ced6773769b392c5
R 29bf358993a7c679676ef1389a2bc787
U drh
Z bd47b9db8446ad6b70c7b3bf3d82180a
Z 5cabae488dd95fb06d50ea84062f02c6

2
manifest.uuid
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@@ -1 +1 @@
a279b151c1623807774daf4975175c62ea252eefb71f9820ced6773769b392c5
c20d4fdee21409ebc9c65c9540af8ac48d1f4425499a6674ef9319655c192612

10
src/analyze.c
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@@ -444,10 +444,6 @@ static void statInit(
p->nEst = sqlite3_value_int64(argv[2]);
p->nRow = 0;
p->nLimit = sqlite3_value_int64(argv[3]);
#ifdef SQLITE_ENABLE_STAT4
/* Disable STAT4 statistics gathering if there is a analysis_limit set */
if( p->nLimit>0 ) p->mxSample = 0;
#endif
p->nCol = nCol;
p->nKeyCol = nKeyCol;
p->nSkipAhead = 0;
@@ -455,7 +451,7 @@ static void statInit(
p->current.anEq = &p->current.anDLt[nColUp];
#ifdef SQLITE_ENABLE_STAT4
p->mxSample = mxSample;
p->mxSample = p->nLimit==0 ? mxSample : 0;
if( mxSample ){
u8 *pSpace; /* Allocated space not yet assigned */
int i; /* Used to iterate through p->aSample[] */
@@ -489,7 +485,7 @@ static void statInit(
sqlite3_result_blob(context, p, sizeof(*p), statAccumDestructor);
}
static const FuncDef statInitFuncdef = {
2+IsStat4, /* nArg */
4, /* nArg */
SQLITE_UTF8, /* funcFlags */
0, /* pUserData */
0, /* pNext */
@@ -1256,7 +1252,7 @@ static void analyzeOneTable(
/* Add the entries to the stat4 table. */
#ifdef SQLITE_ENABLE_STAT4
if( OptimizationEnabled(db, SQLITE_Stat4) ){
if( OptimizationEnabled(db, SQLITE_Stat4) && db->nAnalysisLimit==0 ){
int regEq = regStat1;
int regLt = regStat1+1;
int regDLt = regStat1+2;