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Continuing incremental enhancements of SELECT code generation:

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Remove the Select.affinity field.  Use SelectDest.affSdst instead.

FossilOrigin-Name: cf40b7b5ebdacc3215d769aadacce8c9e7e9dfbb
This commit is contained in:
drh
2012-09-20 15:41:31 +00:00
parent 2c79733f3c
commit 634d81dee0
4 changed files with 20 additions and 19 deletions
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11
src/sqliteInt.h
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@@ -661,6 +661,7 @@ typedef struct Parse Parse;
typedef struct RowSet RowSet;
typedef struct Savepoint Savepoint;
typedef struct Select Select;
typedef struct SelectDest SelectDest;
typedef struct SrcList SrcList;
typedef struct StrAccum StrAccum;
typedef struct Table Table;
@@ -2065,7 +2066,6 @@ struct NameContext {
struct Select {
ExprList *pEList; /* The fields of the result */
u8 op; /* One of: TK_UNION TK_ALL TK_INTERSECT TK_EXCEPT */
char affinity; /* MakeRecord with this affinity for SRT_Set */
u16 selFlags; /* Various SF_* values */
int iLimit, iOffset; /* Memory registers holding LIMIT & OFFSET counters */
int addrOpenEphm[3]; /* OP_OpenEphem opcodes related to this select */
@@ -2116,13 +2116,12 @@ struct Select {
#define SRT_Coroutine 10 /* Generate a single row of result */
/*
** A structure used to customize the behavior of sqlite3Select(). See
** comments above sqlite3Select() for details.
** An instance of this object describes where to put of the results of
** a SELECT statement.
*/
typedef struct SelectDest SelectDest;
struct SelectDest {
u8 eDest; /* How to dispose of the results */
u8 affSdst; /* Affinity used when eDest==SRT_Set */
u8 eDest; /* How to dispose of the results. On of SRT_* above. */
char affSdst; /* Affinity used when eDest==SRT_Set */
int iSDParm; /* A parameter used by the eDest disposal method */
int iSdst; /* Base register where results are written */
int nSdst; /* Number of registers allocated */