diff options
Diffstat (limited to 'src/backend/parser/parse_clause.c')
| -rw-r--r-- | src/backend/parser/parse_clause.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c index edcaf276c0a..7460e611604 100644 --- a/src/backend/parser/parse_clause.c +++ b/src/backend/parser/parse_clause.c @@ -1568,24 +1568,13 @@ buildMergedJoinVar(ParseState *pstate, JoinType jointype, *r_node, *res_node; - /* - * Choose output type if input types are dissimilar. - */ - outcoltype = l_colvar->vartype; - outcoltypmod = l_colvar->vartypmod; - if (outcoltype != r_colvar->vartype) - { - outcoltype = select_common_type(pstate, + outcoltype = select_common_type(pstate, + list_make2(l_colvar, r_colvar), + "JOIN/USING", + NULL); + outcoltypmod = select_common_typmod(pstate, list_make2(l_colvar, r_colvar), - "JOIN/USING", - NULL); - outcoltypmod = -1; /* ie, unknown */ - } - else if (outcoltypmod != r_colvar->vartypmod) - { - /* same type, but not same typmod */ - outcoltypmod = -1; /* ie, unknown */ - } + outcoltype); /* * Insert coercion functions if needed. Note that a difference in typmod |