diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/select.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/select.c b/src/select.c index 2265d4c9f..126d4cc28 100644 --- a/src/select.c +++ b/src/select.c @@ -1651,8 +1651,10 @@ int sqlite3ColumnsFromExprList( cnt = 0; while( zName && sqlite3HashFind(&ht, zName)!=0 ){ nName = sqlite3Strlen30(zName); - for(j=nName-1; j>0 && sqlite3Isdigit(zName[j]); j--){} - if( zName[j]==':' ) nName = j; + if( nName>0 ){ + for(j=nName-1; j>0 && sqlite3Isdigit(zName[j]); j--){} + if( zName[j]==':' ) nName = j; + } zName = sqlite3MPrintf(db, "%.*z:%u", nName, zName, ++cnt); if( cnt>3 ) sqlite3_randomness(sizeof(cnt), &cnt); } |