database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-08 03:22:21 +03:00
Code Activity

Add the EP_OptOnly flag on expressions for WHERE clause

Browse Source 
terms that are added by the optimizer but should not be coded. (CVS 2540)

FossilOrigin-Name: f4a66ed04dfd8714746b766b4859682ea18e328f
This commit is contained in:
drh
2005-07-08 14:14:22 +00:00
parent 70031fa396
commit 392e597c8a
4 changed files with 24 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
src/sqliteInt.h
View File

@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.390 2005/07/08 12:13:05 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.391 2005/07/08 14:14:23 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -838,12 +838,13 @@ struct Expr {
/*
** The following are the meanings of bits in the Expr.flags field.
*/
#define EP_FromJoin 0x0001 /* Originated in ON or USING clause of a join */
#define EP_Agg 0x0002 /* Contains one or more aggregate functions */
#define EP_Resolved 0x0004 /* IDs have been resolved to COLUMNs */
#define EP_Error 0x0008 /* Expression contains one or more errors */
#define EP_Not 0x0010 /* Operator preceeded by NOT */
#define EP_VarSelect 0x0020 /* pSelect is correlated, not constant */
#define EP_FromJoin 0x01 /* Originated in ON or USING clause of a join */
#define EP_Agg 0x02 /* Contains one or more aggregate functions */
#define EP_Resolved 0x04 /* IDs have been resolved to COLUMNs */
#define EP_Error 0x08 /* Expression contains one or more errors */
#define EP_Not 0x10 /* Operator preceeded by NOT */
#define EP_VarSelect 0x20 /* pSelect is correlated, not constant */
#define EP_OptOnly 0x40 /* A constraint used by the optimizer only */
/*
** These macros can be used to test, set, or clear bits in the