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Insert #ifdefs that can optionally remove features at compiletime resulting

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in a database engine with a smaller footprint. (CVS 2034)

FossilOrigin-Name: be661acfa849bb0d5692797dd221f5a8a457f8ad
This commit is contained in:
drh
2004-10-31 02:22:47 +00:00
parent 27d258a3ec
commit b7f9164e98
28 changed files with 439 additions and 173 deletions
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16
src/select.c
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@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.212 2004/10/06 15:41:17 drh Exp $
** $Id: select.c,v 1.213 2004/10/31 02:22:49 drh Exp $
*/
#include "sqliteInt.h"
@@ -1282,6 +1282,7 @@ static int openTempIndex(Parse *pParse, Select *p, int iTab, int keyAsData){
return addr;
}
#ifndef SQLITE_OMIT_COMPOUND_SELECT
/*
** Add the address "addr" to the set of all OpenTemp opcode addresses
** that are being accumulated in p->ppOpenTemp.
@@ -1294,7 +1295,9 @@ static int multiSelectOpenTempAddr(Select *p, int addr){
pList->a[pList->nId-1].idx = addr;
return SQLITE_OK;
}
#endif /* SQLITE_OMIT_COMPOUND_SELECT */
#ifndef SQLITE_OMIT_COMPOUND_SELECT
/*
** Return the appropriate collating sequence for the iCol-th column of
** the result set for the compound-select statement "p". Return NULL if
@@ -1315,7 +1318,9 @@ static CollSeq *multiSelectCollSeq(Parse *pParse, Select *p, int iCol){
}
return pRet;
}
#endif /* SQLITE_OMIT_COMPOUND_SELECT */
#ifndef SQLITE_OMIT_COMPOUND_SELECT
/*
** This routine is called to process a query that is really the union
** or intersection of two or more separate queries.
@@ -1704,7 +1709,9 @@ multi_select_end:
p->ppOpenTemp = 0;
return rc;
}
#endif /* SQLITE_OMIT_COMPOUND_SELECT */
#ifndef SQLITE_OMIT_VIEW
/*
** Scan through the expression pExpr. Replace every reference to
** a column in table number iTable with a copy of the iColumn-th
@@ -1757,7 +1764,9 @@ substExprList(ExprList *pList, int iTable, ExprList *pEList){
substExpr(pList->a[i].pExpr, iTable, pEList);
}
}
#endif /* !defined(SQLITE_OMIT_VIEW) */
#ifndef SQLITE_OMIT_VIEW
/*
** This routine attempts to flatten subqueries in order to speed
** execution. It returns 1 if it makes changes and 0 if no flattening
@@ -2009,6 +2018,7 @@ static int flattenSubquery(
sqlite3SelectDelete(pSub);
return 1;
}
#endif /* SQLITE_OMIT_VIEW */
/*
** Analyze the SELECT statement passed in as an argument to see if it
@@ -2262,11 +2272,13 @@ int sqlite3Select(
if( sqlite3_malloc_failed || pParse->nErr || p==0 ) return 1;
if( sqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0) ) return 1;
#ifndef SQLITE_OMIT_COMPOUND_SELECT
/* If there is are a sequence of queries, do the earlier ones first.
*/
if( p->pPrior ){
return multiSelect(pParse, p, eDest, iParm, aff);
}
#endif
/* Make local copies of the parameters for this query.
*/
@@ -2400,11 +2412,13 @@ int sqlite3Select(
/* Check to see if this is a subquery that can be "flattened" into its parent.
** If flattening is a possiblity, do so and return immediately.
*/
#ifndef SQLITE_OMIT_VIEW
if( pParent && pParentAgg &&
flattenSubquery(pParse, pParent, parentTab, *pParentAgg, isAgg) ){
if( isAgg ) *pParentAgg = 1;
return rc;
}
#endif
/* If there is an ORDER BY clause, resolve any collation sequences
** names that have been explicitly specified.