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Issue the new SQLITE_WARNING_AUTOINDEX warning on the SQLite log whenever

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an automatic index is created.

FossilOrigin-Name: 338826ef3f8a209b14f8d42370855cab9ac9ed45
This commit is contained in:
drh
2013-06-28 23:55:45 +00:00
parent 986b38792f
commit 8d56e2059c
6 changed files with 35 additions and 10 deletions
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7
src/where.c
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@@ -2042,6 +2042,7 @@ static void constructAutomaticIndex(
WhereLoop *pLoop; /* The Loop object */
Bitmask idxCols; /* Bitmap of columns used for indexing */
Bitmask extraCols; /* Bitmap of additional columns */
u8 sentWarning = 0; /* True if a warnning has been issued */
/* Generate code to skip over the creation and initialization of the
** transient index on 2nd and subsequent iterations of the loop. */
@@ -2062,6 +2063,12 @@ static void constructAutomaticIndex(
Bitmask cMask = iCol>=BMS ? MASKBIT(BMS-1) : MASKBIT(iCol);
testcase( iCol==BMS );
testcase( iCol==BMS-1 );
if( !sentWarning ){
sqlite3_log(SQLITE_WARNING_AUTOINDEX,
"automatic index on %s(%s)", pTable->zName,
pTable->aCol[iCol].zName);
sentWarning = 1;
}
if( (idxCols & cMask)==0 ){
if( whereLoopResize(pParse->db, pLoop, nColumn+1) ) return;
pLoop->aLTerm[nColumn++] = pTerm;