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Omit the Vdbe.doingRerun field for a slight size reduction and performance gain.

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FossilOrigin-Name: e93297a9d775688e6274c54ba75b19fc1fe8b29b73b9b5e7f94f3f2ca37f045f
This commit is contained in:
drh 2022-04-01 19:04:13 +00:00
parent cf6e3fd787
commit a24832b7b2
5 changed files with 17 additions and 13 deletions
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16
manifest
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@ -1,5 +1,5 @@
C New\smacro\sROUND8P()\swhich\sworks\slike\sROUND8()\sbut\sassumes\sthat\sthe\sinput\sis\nalready\sa\smultiple\sof\sthe\ssize\sof\sa\spointer.\s\sIt\sbecomes\sa\sno-op\sfor\n64-bit\smachines,\sgiving\sa\ssmall\ssize\sreduction\sand\sspeed\sboost.
D 2022-04-01T18:45:11.641
C Omit\sthe\sVdbe.doingRerun\sfield\sfor\sa\sslight\ssize\sreduction\sand\sperformance\sgain.
D 2022-04-01T19:04:13.644
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -624,10 +624,10 @@ F src/upsert.c 8789047a8f0a601ea42fa0256d1ba3190c13746b6ba940fe2d25643a7e991937
F src/utf.c ee39565f0843775cc2c81135751ddd93eceb91a673ea2c57f61c76f288b041a0
F src/util.c 602fe229f32a96ceccae4f40824129669582096f7c355f53dbac156c9fecef23
F src/vacuum.c 6c38ddc52f0619865c91dae9c441d4d48bf3040d7dc1bc5b22da1e45547ed0b3
F src/vdbe.c 297ff0e5cb7873c177c92627a314e91a21e905323efbd907a50bc3d34d3418d6
F src/vdbe.c 8f8373466beab434b7d1991fafec68a13318adf10ccf345a14ed178873c66632
F src/vdbe.h a1d0e3b934e835e73edd146f2e7c4eadb711b5c9875c18159a57483fd78e550e
F src/vdbeInt.h 81172c6b828b546d9fa1ce3e2cbeba90d56e39a6fbef87c46813611090d41f07
F src/vdbeapi.c 17474f2122c1f54c93dcdb7b845e68e207bbebab6a040c65ed374c4aec049d34
F src/vdbeInt.h 22babf1e585ae7e5c49f2e6442969b88f07bdcc3d154164346d25ef4efa3ebf3
F src/vdbeapi.c 76024c6f5af4ca00490b00caa4fb1fb6e016bded19f3b901c255686455d0ef31
F src/vdbeaux.c 7be57b47c60e348c32048d2e33c719b3d918a2aef36b30c6da571033c489dd58
F src/vdbeblob.c 5e61ce31aca17db8fb60395407457a8c1c7fb471dde405e0cd675974611dcfcd
F src/vdbemem.c 062cd58c54f887dc2eeb865686251c17237f791f0e6394e9c6f7a6f3c1a7e206
@ -1945,8 +1945,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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R e63b5f59e7e4b2f0f7f707ce12aa7775
U drh
Z 952158b32ce23df022f8a24df89bf845
Z 4a5439f66922b2e5d0302346fbe72c1a
# Remove this line to create a well-formed Fossil manifest.

2
manifest.uuid
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@ -1 +1 @@
d126f304cde66ebfe21a4967c22dcba0bac27cbce56318b14bd50051e49c978c
e93297a9d775688e6274c54ba75b19fc1fe8b29b73b9b5e7f94f3f2ca37f045f

2
src/vdbe.c
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@ -8340,7 +8340,7 @@ case OP_Init: { /* jump */
#ifndef SQLITE_OMIT_TRACE
if( (db->mTrace & (SQLITE_TRACE_STMT|SQLITE_TRACE_LEGACY))!=0
&& !p->doingRerun
&& p->minWriteFileFormat!=254 /* tag-20220401a */
&& (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
){
#ifndef SQLITE_OMIT_DEPRECATED

1
src/vdbeInt.h
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@ -455,7 +455,6 @@ struct Vdbe {
u8 errorAction; /* Recovery action to do in case of an error */
u8 minWriteFileFormat; /* Minimum file format for writable database files */
u8 prepFlags; /* SQLITE_PREPARE_* flags */
u8 doingRerun; /* True if rerunning after an auto-reprepare */
u8 eVdbeState; /* On of the VDBE_*_STATE values */
bft expired:2; /* 1: recompile VM immediately 2: when convenient */
bft explain:2; /* True if EXPLAIN present on SQL command */

9
src/vdbeapi.c
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@ -797,7 +797,6 @@ int sqlite3_step(sqlite3_stmt *pStmt){
}
db = v->db;
sqlite3_mutex_enter(db->mutex);
v->doingRerun = 0;
while( (rc = sqlite3Step(v))==SQLITE_SCHEMA
&& cnt++ < SQLITE_MAX_SCHEMA_RETRY ){
int savedPc = v->pc;
@ -823,7 +822,13 @@ int sqlite3_step(sqlite3_stmt *pStmt){
break;
}
sqlite3_reset(pStmt);
if( savedPc>=0 ) v->doingRerun = 1;
if( savedPc>=0 ){
/* Setting minWriteFileFormat to 254 is a signal to the OP_Init and
** OP_Trace opcodes to *not* perform SQLITE_TRACE_STMT because one
** should output has already occurred due to SQLITE_SCHEMA.
** tag-20220401a */
v->minWriteFileFormat = 254;
}
assert( v->expired==0 );
}
sqlite3_mutex_leave(db->mutex);