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Minor cleanups in sqlite3Int.h. By reordering some fields in the Parse

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object, it packs more tightly and uses less memory and less CPU to
initialize.

FossilOrigin-Name: aa6de539c09faa320b68c63659e602107145c4263fa680d5b40fe4d7d7ac4534
This commit is contained in:
drh 2023-08-08 17:36:03 +00:00
parent 73cdbeb632
commit 80c438613a
3 changed files with 12 additions and 13 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Fix\san\sissue\sin\sthe\samalgamation\sgenerator\sin\swhich\sit\swas\snot\scorrectly\nexpanding\sthe\sSQLite\sversion\sin\sthe\sheader\scomment.
D 2023-08-08T16:53:12.113
C Minor\scleanups\sin\ssqlite3Int.h.\s\sBy\sreordering\ssome\sfields\sin\sthe\sParse\nobject,\sit\spacks\smore\stightly\sand\suses\sless\smemory\sand\sless\sCPU\sto\ninitialize.
D 2023-08-08T17:36:03.881
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@ -649,7 +649,7 @@ F src/shell.c.in 694aaf751f00610381533d4a31c83d142cfc83ef91ef65e2aa6912ace7c39b4
F src/sqlite.h.in 7b07a33d2af82ee974aa91e6294abce0282b2f4c5934b291d2fff961810dd867
F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
F src/sqlite3ext.h da473ce2b3d0ae407a6300c4a164589b9a6bfdbec9462688a8593ff16f3bb6e4
F src/sqliteInt.h bdf30ea8552626736f7fc2d216beb4e6ee556d1afc39d20afa1697ea259463ca
F src/sqliteInt.h 025ed58a41968ef80d64cdc194caa8dd207b0256b147253d762fdac7a62408f9
F src/sqliteLimit.h 33b1c9baba578d34efe7dfdb43193b366111cdf41476b1e82699e14c11ee1fb6
F src/status.c 160c445d7d28c984a0eae38c144f6419311ed3eace59b44ac6dafc20db4af749
F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
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11
src/sqliteInt.h
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@ -894,7 +894,7 @@ typedef INT16_TYPE LogEst;
/*
** P is one byte past the end of a large buffer. Return true if a span of bytes
** between S..E crosses the end of that buffer. In other words, return true
** if the sub-buffer S..E-1 overflows the buffer show last byte is P-1.
** if the sub-buffer S..E-1 overflows the buffer whose last byte is P-1.
**
** S is the start of the span. E is one byte past the end of end of span.
**
@ -1257,7 +1257,6 @@ typedef struct Cte Cte;
typedef struct CteUse CteUse;
typedef struct Db Db;
typedef struct DbFixer DbFixer;
typedef struct DblDbl DblDbl;
typedef struct Schema Schema;
typedef struct Expr Expr;
typedef struct ExprList ExprList;
@ -3778,6 +3777,9 @@ struct Parse {
int regRoot; /* Register holding root page number for new objects */
int nMaxArg; /* Max args passed to user function by sub-program */
int nSelect; /* Number of SELECT stmts. Counter for Select.selId */
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
u32 nProgressSteps; /* xProgress steps taken during sqlite3_prepare() */
#endif
#ifndef SQLITE_OMIT_SHARED_CACHE
int nTableLock; /* Number of locks in aTableLock */
TableLock *aTableLock; /* Required table locks for shared-cache mode */
@ -3791,12 +3793,9 @@ struct Parse {
int addrCrTab; /* Address of OP_CreateBtree on CREATE TABLE */
Returning *pReturning; /* The RETURNING clause */
} u1;
LogEst nQueryLoop; /* Est number of iterations of a query (10*log2(N)) */
u32 oldmask; /* Mask of old.* columns referenced */
u32 newmask; /* Mask of new.* columns referenced */
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
u32 nProgressSteps; /* xProgress steps taken during sqlite3_prepare() */
#endif
LogEst nQueryLoop; /* Est number of iterations of a query (10*log2(N)) */
u8 eTriggerOp; /* TK_UPDATE, TK_INSERT or TK_DELETE */
u8 bReturning; /* Coding a RETURNING trigger */
u8 eOrconf; /* Default ON CONFLICT policy for trigger steps */