database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-12 23:22:53 +03:00
Code Activity

Experimental branch allowing different postulated scan rates for each index.

Browse Source 
FossilOrigin-Name: d59d97b0a8d70dc31d45db61bbc11ebb5375a224
This commit is contained in:
drh
2013-10-03 19:21:41 +00:00
parent d100f6912d
commit c28c4e5009
5 changed files with 56 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/sqliteInt.h
View File

@@ -1472,7 +1472,7 @@ struct FKey {
#define OE_SetDflt 8 /* Set the foreign key value to its default */
#define OE_Cascade 9 /* Cascade the changes */
#define OE_Default 99 /* Do whatever the default action is */
#define OE_Default 10 /* Do whatever the default action is */
/*
@@ -1560,7 +1560,8 @@ struct Index {
Expr *pPartIdxWhere; /* WHERE clause for partial indices */
int tnum; /* DB Page containing root of this index */
u16 nColumn; /* Number of columns in table used by this index */
u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
u8 iScanRatio; /* Scan rate relative to the main table */
unsigned onError:4; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
unsigned autoIndex:2; /* 1==UNIQUE, 2==PRIMARY KEY, 0==CREATE INDEX */
unsigned bUnordered:1; /* Use this index for == or IN queries only */
unsigned uniqNotNull:1; /* True if UNIQUE and NOT NULL for all columns */