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Full-coverage testing and documentation for the ANALYZE command. The

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results of analysis are still not loaded or used, however. (CVS 2561)

FossilOrigin-Name: bd7583a5d63412785a9c5de54d25b509da241605
This commit is contained in:
drh
2005-07-23 02:17:03 +00:00
parent ff2d5ea408
commit e6e049694d
9 changed files with 305 additions and 32 deletions
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33
src/analyze.c
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@@ -11,7 +11,7 @@
*************************************************************************
** This file contains code associated with the ANALYZE command.
**
** @(#) $Id: analyze.c,v 1.2 2005/07/23 00:41:49 drh Exp $
** @(#) $Id: analyze.c,v 1.3 2005/07/23 02:17:03 drh Exp $
*/
#ifndef SQLITE_OMIT_ANALYZE
#include "sqliteInt.h"
@@ -64,7 +64,7 @@ static void openStatTable(
/* Open the sqlite_stat1 table for writing.
*/
sqlite3VdbeAddOp(v, OP_Integer, iDb, 0);
sqlite3VdbeAddOp(v, OP_OpenWrite, iStatCur, 0);
sqlite3VdbeAddOp(v, OP_OpenWrite, iStatCur, iRootPage);
sqlite3VdbeAddOp(v, OP_SetNumColumns, iStatCur, 3);
}
@@ -92,6 +92,14 @@ static void analyzeOneTable(
/* Do no analysis for tables with fewer than 2 indices */
return;
}
#ifndef SQLITE_OMIT_AUTHORIZATION
if( sqlite3AuthCheck(pParse, SQLITE_ANALYZE, pTab->zName, 0,
pParse->db->aDb[pTab->iDb].zName ) ){
return;
}
#endif
iIdxCur = pParse->nTab;
for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
/* Open a cursor to the index to be analyzed
@@ -130,9 +138,9 @@ static void analyzeOneTable(
/* Do the analysis.
*/
sqlite3VdbeAddOp(v, OP_Rewind, iIdxCur, 0);
topOfLoop = sqlite3VdbeCurrentAddr(v);
endOfLoop = sqlite3VdbeMakeLabel(v);
sqlite3VdbeAddOp(v, OP_Rewind, iIdxCur, endOfLoop);
topOfLoop = sqlite3VdbeCurrentAddr(v);
sqlite3VdbeAddOp(v, OP_MemIncr, iMem, 0);
for(i=0; i<nCol; i++){
sqlite3VdbeAddOp(v, OP_Column, iIdxCur, i);
@@ -263,20 +271,19 @@ void sqlite3Analyze(Parse *pParse, Token *pName1, Token *pName2){
if( i==1 ) continue; /* Do not analyze the TEMP database */
analyzeDatabase(pParse, i);
}
}else if( pName2==0 ){
}else if( pName2==0 || pName2->n==0 ){
/* Form 2: Analyze the database or table named */
iDb = sqlite3FindDb(db, pName1);
if( iDb>=0 ){
analyzeDatabase(pParse, iDb);
return;
}else{
z = sqlite3NameFromToken(pName1);
pTab = sqlite3LocateTable(pParse, z, 0);
sqliteFree(z);
if( pTab ){
analyzeTable(pParse, pTab);
}
}
z = sqlite3NameFromToken(pName1);
pTab = sqlite3LocateTable(pParse, z, 0);
sqliteFree(z);
if( pTab ){
analyzeTable(pParse, pTab);
}
return;
}else{
/* Form 3: Analyze the fully qualified table name */
iDb = sqlite3TwoPartName(pParse, pName1, pName2, &pTableName);