diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vdbe.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/vdbe.c b/src/vdbe.c index b4a96468f..f8878db31 100644 --- a/src/vdbe.c +++ b/src/vdbe.c @@ -2781,10 +2781,12 @@ case OP_Offset: { /* out3 */ ** if the P4 argument is a P4_MEM use the value of the P4 argument as ** the result. ** -** If the OPFLAG_LENGTHARG and OPFLAG_TYPEOFARG bits are set on P5 then -** the result is guaranteed to only be used as the argument of a length() -** or typeof() function, respectively. The loading of large blobs can be -** skipped for length() and all content loading can be skipped for typeof(). +** If the OPFLAG_LENGTHARG bit is set in P5 then the result is guaranteed +** to only be used by the length() function or the equivalent. The content +** of large blobs is not loaded, thus saving CPU cycles. If the +** OPFLAG_TYPEOFARG bit is set then the result will only be used by the +** typeof() function or the IS NULL or IS NOT NULL operators or the +** equivalent. In this case, all content loading can be omitted. */ case OP_Column: { u32 p2; /* column number to retrieve */ |