MonetDB: Aug2024 - first check if sql_exp is constructed

[Yunus Koning via checkin-list]

Changeset: cc090c8b03e1 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/cc090c8b03e1
Modified Files:
        sql/server/rel_schema.c
Branch: Aug2024
Log Message:

first check if sql_exp is constructed


diffs (15 lines):

diff --git a/sql/server/rel_schema.c b/sql/server/rel_schema.c
--- a/sql/server/rel_schema.c
+++ b/sql/server/rel_schema.c
@@ -413,10 +413,10 @@ create_check_plan(sql_query *query, symb
        exp_kind ek = {type_value, card_value, FALSE};
        sql_rel *rel = rel_basetable(sql, t, t->base.name);
        sql_exp *e = rel_logical_value_exp(query, &rel, 
s->data.lval->h->data.sym, sql_sel | sql_no_subquery, ek);
-       e->comment = sa_strdup(sql->sa, s->data.lval->h->next->data.sval);
 
        if (!e || !rel || !is_basetable(rel->op))
                return NULL;
+       e->comment = sa_strdup(sql->sa, s->data.lval->h->next->data.sval);
        rel->exps = rel_base_projection(sql, rel, 0);
        list *pexps = sa_list(sql->sa);
        pexps = append(pexps, e);
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