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Improved "wheretrace" debugging output for calls to xBestIndex. No changes

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to release code.

FossilOrigin-Name: 33966bb06ce9a8e90734de59a8d43c523f60870d20be64789638da4c84a8b81b
This commit is contained in:
drh
2024-03-24 20:26:59 +00:00
parent a631eb378d
commit 4a402b80c5
3 changed files with 21 additions and 13 deletions
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20
src/where.c
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@@ -713,9 +713,13 @@ static void translateColumnToCopy(
** are no-ops.
*/
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(WHERETRACE_ENABLED)
static void whereTraceIndexInfoInputs(sqlite3_index_info *p){
static void whereTraceIndexInfoInputs(
sqlite3_index_info *p, /* The IndexInfo object */
Table *pTab /* The TABLE that is the virtual table */
){
int i;
if( (sqlite3WhereTrace & 0x10)==0 ) return;
sqlite3DebugPrintf("sqlite3_index_info inputs for %s:\n", pTab->zName);
for(i=0; i<p->nConstraint; i++){
sqlite3DebugPrintf(
" constraint[%d]: col=%d termid=%d op=%d usabled=%d collseq=%s\n",
@@ -733,9 +737,13 @@ static void whereTraceIndexInfoInputs(sqlite3_index_info *p){
p->aOrderBy[i].desc);
}
}
static void whereTraceIndexInfoOutputs(sqlite3_index_info *p){
static void whereTraceIndexInfoOutputs(
sqlite3_index_info *p, /* The IndexInfo object */
Table *pTab /* The TABLE that is the virtual table */
){
int i;
if( (sqlite3WhereTrace & 0x10)==0 ) return;
sqlite3DebugPrintf("sqlite3_index_info outputs for %s:\n", pTab->zName);
for(i=0; i<p->nConstraint; i++){
sqlite3DebugPrintf(" usage[%d]: argvIdx=%d omit=%d\n",
i,
@@ -749,8 +757,8 @@ static void whereTraceIndexInfoOutputs(sqlite3_index_info *p){
sqlite3DebugPrintf(" estimatedRows=%lld\n", p->estimatedRows);
}
#else
#define whereTraceIndexInfoInputs(A)
#define whereTraceIndexInfoOutputs(A)
#define whereTraceIndexInfoInputs(A,B)
#define whereTraceIndexInfoOutputs(A,B)
#endif
/*
@@ -1493,11 +1501,11 @@ static int vtabBestIndex(Parse *pParse, Table *pTab, sqlite3_index_info *p){
sqlite3_vtab *pVtab = sqlite3GetVTable(pParse->db, pTab)->pVtab;
int rc;
whereTraceIndexInfoInputs(p);
whereTraceIndexInfoInputs(p, pTab);
pParse->db->nSchemaLock++;
rc = pVtab->pModule->xBestIndex(pVtab, p);
pParse->db->nSchemaLock--;
whereTraceIndexInfoOutputs(p);
whereTraceIndexInfoOutputs(p, pTab);
if( rc!=SQLITE_OK && rc!=SQLITE_CONSTRAINT ){
if( rc==SQLITE_NOMEM ){