diff options
Diffstat (limited to 'src/backend/utils/adt/selfuncs.c')
-rw-r--r-- | src/backend/utils/adt/selfuncs.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c index 3d4304cce7a..37ddda77240 100644 --- a/src/backend/utils/adt/selfuncs.c +++ b/src/backend/utils/adt/selfuncs.c @@ -3446,10 +3446,10 @@ estimate_num_groups(PlannerInfo *root, List *groupExprs, double input_rows, * XXX This has the consequence that if there's a statistics on the * expression, we don't split it into individual Vars. This affects * our selection of statistics in estimate_multivariate_ndistinct, - * because it's probably better to use more accurate estimate for - * each expression and treat them as independent, than to combine - * estimates for the extracted variables when we don't know how that - * relates to the expressions. + * because it's probably better to use more accurate estimate for each + * expression and treat them as independent, than to combine estimates + * for the extracted variables when we don't know how that relates to + * the expressions. */ examine_variable(root, groupexpr, 0, &vardata); if (HeapTupleIsValid(vardata.statsTuple) || vardata.isunique) @@ -4039,16 +4039,16 @@ estimate_multivariate_ndistinct(PlannerInfo *root, RelOptInfo *rel, /* * Process a simple Var expression, by matching it to keys - * directly. If there's a matching expression, we'll try - * matching it later. + * directly. If there's a matching expression, we'll try matching + * it later. */ if (IsA(varinfo->var, Var)) { AttrNumber attnum = ((Var *) varinfo->var)->varattno; /* - * Ignore expressions on system attributes. Can't rely on - * the bms check for negative values. + * Ignore expressions on system attributes. Can't rely on the + * bms check for negative values. */ if (!AttrNumberIsForUserDefinedAttr(attnum)) continue; |