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More efficient handling of the LIMIT clause. Scalar subqueries and EXISTS

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on compound SELECT statements now working properly.  Ticket #1473. (CVS 2747)

FossilOrigin-Name: edca8913ca012fc0c17343a27f819de95147b1bd
This commit is contained in:
drh
2005-10-06 16:53:14 +00:00
parent 23cc57f6a3
commit ec7429ae27
9 changed files with 829 additions and 69 deletions
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4
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.421 2005/09/19 21:05:49 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.422 2005/10/06 16:53:15 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -1149,7 +1149,7 @@ struct Select {
#define SRT_Table 7 /* Store result as data with an automatic rowid */
#define SRT_VirtualTab 8 /* Create virtual table and store like SRT_Table */
#define SRT_Subroutine 9 /* Call a subroutine to handle results */
#define SRT_Exists 10 /* Put 0 or 1 in a memory cell */
#define SRT_Exists 10 /* Store 1 if the result is not empty */
/*
** An SQL parser context. A copy of this structure is passed through