Changeset: 9289cf701e82 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/9289cf701e82
Modified Files:
sql/server/rel_select.c
Branch: Dec2025
Log Message:
Fix casting from decimal to decimal without specfying precision and scale.
Fix #7943.
diffs (19 lines):
diff --git a/sql/server/rel_select.c b/sql/server/rel_select.c
--- a/sql/server/rel_select.c
+++ b/sql/server/rel_select.c
@@ -4228,8 +4228,13 @@ rel_cast(sql_query *query, sql_rel **rel
sql_subtype *et = exp_subtype(e);
if (e->type == e_atom && !tpe->digits) {
if (e->l && (et->type->eclass == EC_NUM ||
et->type->eclass == EC_DEC)) {
- tpe->digits = atom_num_digits(e->l) + 1;
- tpe->scale = 1;
+ if (et->digits && et->scale) {
+ tpe->digits = et->digits;
+ tpe->scale = et->scale;
+ } else {
+ tpe->digits = atom_num_digits(e->l) + 1;
+ tpe->scale = 1;
+ }
tpe = sql_bind_subtype(sql->sa, "decimal",
tpe->digits, tpe->scale);
} else if (EC_VARCHAR(et->type->eclass)) {
char *s = E_ATOM_STRING(e);
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