diff options
Diffstat (limited to 'src/backend/commands/explain.c')
| -rw-r--r-- | src/backend/commands/explain.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c index a18ab436167..e549f9d360a 100644 --- a/src/backend/commands/explain.c +++ b/src/backend/commands/explain.c @@ -1343,6 +1343,23 @@ ExplainNode(PlanState *planstate, List *ancestors, if (es->verbose) show_plan_tlist(planstate, ancestors, es); + /* unique join */ + switch (nodeTag(plan)) + { + case T_NestLoop: + case T_MergeJoin: + case T_HashJoin: + /* try not to be too chatty about this in text mode */ + if (es->format != EXPLAIN_FORMAT_TEXT || + (es->verbose && ((Join *) plan)->inner_unique)) + ExplainPropertyBool("Inner Unique", + ((Join *) plan)->inner_unique, + es); + break; + default: + break; + } + /* quals, sort keys, etc */ switch (nodeTag(plan)) { |