diff options
Diffstat (limited to 'src/backend/utils/adt/arrayfuncs.c')
| -rw-r--r-- | src/backend/utils/adt/arrayfuncs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/utils/adt/arrayfuncs.c b/src/backend/utils/adt/arrayfuncs.c index c36a0ff4fb1..d6ff2a15ec1 100644 --- a/src/backend/utils/adt/arrayfuncs.c +++ b/src/backend/utils/adt/arrayfuncs.c @@ -2500,6 +2500,7 @@ array_set_slice(ArrayType *array, { /* * here we must allow for possibility of slice larger than orig array + * and/or not adjacent to orig array subscripts */ int oldlb = ARR_LBOUND(array)[0]; int oldub = oldlb + ARR_DIMS(array)[0] - 1; @@ -2508,10 +2509,12 @@ array_set_slice(ArrayType *array, char *oldarraydata = ARR_DATA_PTR(array); bits8 *oldarraybitmap = ARR_NULLBITMAP(array); + /* count/size of old array entries that will go before the slice */ itemsbefore = Min(slicelb, oldub + 1) - oldlb; lenbefore = array_nelems_size(oldarraydata, 0, oldarraybitmap, itemsbefore, elmlen, elmbyval, elmalign); + /* count/size of old array entries that will be replaced by slice */ if (slicelb > sliceub) { nolditems = 0; @@ -2525,7 +2528,8 @@ array_set_slice(ArrayType *array, nolditems, elmlen, elmbyval, elmalign); } - itemsafter = oldub - sliceub; + /* count/size of old array entries that will go after the slice */ + itemsafter = oldub + 1 - Max(sliceub + 1, oldlb); lenafter = olddatasize - lenbefore - olditemsize; } |