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Fix the group_concat() inverse function implementation so that it correctly

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handles BLOB inputs when database text encoding is UTF16.

FossilOrigin-Name: 38a1326b4bd11bbe2846990d099c28520d17ab4cace1af67248c2472f89df929
This commit is contained in:
drh
2021-10-12 22:55:04 +00:00
parent ffa5b054dd
commit 4fc80671f5
4 changed files with 24 additions and 9 deletions
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6
src/func.c
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@@ -1820,7 +1820,11 @@ static void groupConcatInverse(
/* pGCC is always non-NULL since groupConcatStep() will have always
** run frist to initialize it */
if( ALWAYS(pGCC) ){
int nVS = sqlite3_value_bytes(argv[0]);
int nVS;
/* Must call sqlite3_value_text() to convert the argument into text prior
** to invoking sqlite3_value_bytes(), in case the text encoding is UTF16 */
(void)sqlite3_value_text(argv[0]);
nVS = sqlite3_value_bytes(argv[0]);
pGCC->nAccum -= 1;
if( pGCC->pnSepLengths!=0 ){
assert(pGCC->nAccum >= 0);