postgres.git / summary / log / commit / refs

commit    288ae968726ebaca587a446041fe0e0a6377562d
Author:   Peter Eisentraut <peter@eisentraut.org>
Date:     Fri Mar 27 09:49:49 2026 +0000

    Add a graph pattern variable only once
    
    An element pattern variable may be repeated in the path pattern.
    GraphTableParseState maintains a list of all variable names used in
    the graph pattern.  Add a new variable name to that list only when it
    is not present already.  This isn't a problem right now, but it could
    be in the future.
    
    Author: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
    Discussion: https://www.postgresql.org/message-id/CAExHW5tR4O0vjeqTCPr2VB5pYjNYbJgbCBEQf63NtU5Pz1MiOQ%40mail.gmail.com


 src/backend/parser/parse_graphtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/backend/parser/parse_graphtable.c b/src/backend/parser/parse_graphtable.c
index 136d87e61cf..49ec5c469c2 100644
--- a/src/backend/parser/parse_graphtable.c
+++ b/src/backend/parser/parse_graphtable.c
@@ -231,7 +231,7 @@ transformGraphElementPattern(ParseState *pstate, GraphElementPattern *gep)
 				 errmsg("element pattern quantifier is not supported")));
 
 	if (gep->variable)
-		gpstate->variables = lappend(gpstate->variables, makeString(pstrdup(gep->variable)));
+		gpstate->variables = list_append_unique(gpstate->variables, makeString(pstrdup(gep->variable)));
 
 	gep->labelexpr = transformLabelExpr(gpstate, gep->labelexpr);
 


[parent: 98993150c0a4]