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Multi-index OR-clause optimization now works for simple tests. There are

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no test scripts for it yet, though.  And it is disabled by default, pending
further testing and optimization.  We need a lot of both. (CVS 6058)

FossilOrigin-Name: d77a702358deddfa9987147999d06a235e730fa9
This commit is contained in:
drh
2008-12-23 13:35:23 +00:00
parent 1f58153a9a
commit dd5f5a6231
5 changed files with 79 additions and 31 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 1.813 2008/12/21 03:51:16 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.814 2008/12/23 13:35:23 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -1499,11 +1499,11 @@ struct SrcList {
Select *pSelect; /* A SELECT statement used in place of a table name */
u8 isPopulated; /* Temporary table associated with SELECT is populated */
u8 jointype; /* Type of join between this able and the previous */
u8 notIndexed; /* True if there is a NOT INDEXED clause */
int iCursor; /* The VDBE cursor number used to access this table */
Expr *pOn; /* The ON clause of a join */
IdList *pUsing; /* The USING clause of a join */
Bitmask colUsed; /* Bit N (1<<N) set if column N or pTab is used */
u8 notIndexed; /* True if there is a NOT INDEXED clause */
char *zIndex; /* Identifier from "INDEXED BY <zIndex>" clause */
Index *pIndex; /* Index structure corresponding to zIndex, if any */
} a[1]; /* One entry for each identifier on the list */