diff options
Diffstat (limited to 'src/backend/optimizer/util/var.c')
| -rw-r--r-- | src/backend/optimizer/util/var.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/backend/optimizer/util/var.c b/src/backend/optimizer/util/var.c index d629fcd90d2..d4f46b8d461 100644 --- a/src/backend/optimizer/util/var.c +++ b/src/backend/optimizer/util/var.c @@ -165,7 +165,7 @@ pull_varnos_walker(Node *node, pull_varnos_context *context) * lower than that if it references only a subset of the rels in its * syntactic scope. It might also contain lateral references, but we * should ignore such references when computing the set of varnos in - * an expression tree. Also, if the PHV contains no variables within + * an expression tree. Also, if the PHV contains no variables within * its syntactic scope, it will be forced to be evaluated exactly at * the syntactic scope, so take that as the relid set. */ @@ -364,7 +364,7 @@ contain_var_clause_walker(Node *node, void *context) * * Returns true if any such Var found. * - * Will recurse into sublinks. Also, may be invoked directly on a Query. + * Will recurse into sublinks. Also, may be invoked directly on a Query. */ bool contain_vars_of_level(Node *node, int levelsup) @@ -424,10 +424,10 @@ contain_vars_of_level_walker(Node *node, int *sublevels_up) * Find the parse location of any Var of the specified query level. * * Returns -1 if no such Var is in the querytree, or if they all have - * unknown parse location. (The former case is probably caller error, + * unknown parse location. (The former case is probably caller error, * but we don't bother to distinguish it from the latter case.) * - * Will recurse into sublinks. Also, may be invoked directly on a Query. + * Will recurse into sublinks. Also, may be invoked directly on a Query. * * Note: it might seem appropriate to merge this functionality into * contain_vars_of_level, but that would complicate that function's API. @@ -514,7 +514,7 @@ locate_var_of_level_walker(Node *node, * Upper-level vars (with varlevelsup > 0) should not be seen here, * likewise for upper-level Aggrefs and PlaceHolderVars. * - * Returns list of nodes found. Note the nodes themselves are not + * Returns list of nodes found. Note the nodes themselves are not * copied, only referenced. * * Does not examine subqueries, therefore must only be used after reduction @@ -591,7 +591,7 @@ pull_var_clause_walker(Node *node, pull_var_clause_context *context) * flatten_join_alias_vars * Replace Vars that reference JOIN outputs with references to the original * relation variables instead. This allows quals involving such vars to be - * pushed down. Whole-row Vars that reference JOIN relations are expanded + * pushed down. Whole-row Vars that reference JOIN relations are expanded * into RowExpr constructs that name the individual output Vars. This * is necessary since we will not scan the JOIN as a base relation, which * is the only way that the executor can directly handle whole-row Vars. @@ -603,7 +603,7 @@ pull_var_clause_walker(Node *node, pull_var_clause_context *context) * entries might now be arbitrary expressions, not just Vars. This affects * this function in one important way: we might find ourselves inserting * SubLink expressions into subqueries, and we must make sure that their - * Query.hasSubLinks fields get set to TRUE if so. If there are any + * Query.hasSubLinks fields get set to TRUE if so. If there are any * SubLinks in the join alias lists, the outer Query should already have * hasSubLinks = TRUE, so this is only relevant to un-flattened subqueries. * |