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-rw-r--r--src/json.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/json.c b/src/json.c
index 4db468c92..b30189307 100644
--- a/src/json.c
+++ b/src/json.c
@@ -3857,10 +3857,16 @@ static void jsonExtractFunc(
** NUMBER ==> $[NUMBER] // PG compatible
** LABEL ==> $.LABEL // PG compatible
** [NUMBER] ==> $[NUMBER] // Not PG. Purely for convenience
+ **
+ ** Updated 2024-05-27: If the NUMBER is negative, then PG counts from
+ ** the write of the array. Hence for negative NUMBER:
+ **
+ ** NUMBER ==> $[#NUMBER] // PG compatible
*/
jsonStringInit(&jx, ctx);
if( sqlite3_value_type(argv[i])==SQLITE_INTEGER ){
jsonAppendRawNZ(&jx, "[", 1);
+ if( zPath[0]=='-' ) jsonAppendRawNZ(&jx,"#",1);
jsonAppendRaw(&jx, zPath, nPath);
jsonAppendRawNZ(&jx, "]", 2);
}else if( jsonAllAlphanum(zPath, nPath) ){