diff options
Diffstat (limited to 'src/backend/rewrite/rewriteManip.c')
| -rw-r--r-- | src/backend/rewrite/rewriteManip.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/src/backend/rewrite/rewriteManip.c b/src/backend/rewrite/rewriteManip.c index cd786aa4112..0fcd1fbd14e 100644 --- a/src/backend/rewrite/rewriteManip.c +++ b/src/backend/rewrite/rewriteManip.c @@ -542,8 +542,6 @@ offset_relid_set(Relids relids, int offset) * (identified by sublevels_up and rt_index), and change their varno fields * to 'new_index'. The varnosyn fields are changed too. Also, adjust other * nodes that contain rangetable indexes, such as RangeTblRef and JoinExpr. - * Specifying 'change_RangeTblRef' to false allows skipping RangeTblRef. - * See ChangeVarNodesExtended for details. * * NOTE: although this has the form of a walker, we cheat and modify the * nodes in-place. The given expression tree should have been copied @@ -664,17 +662,16 @@ ChangeVarNodes_walker(Node *node, ChangeVarNodes_context *context) } /* - * ChangeVarNodesExtended - similar to ChangeVarNodes, but with an additional + * ChangeVarNodesExtended - similar to ChangeVarNodes, but with an additional * 'callback' param * - * ChangeVarNodes changes a given node and all of its underlying nodes. - * This version of function additionally takes a callback, which has a - * chance to process a node before ChangeVarNodes_walker. A callback - * returns a boolean value indicating if given node should be skipped from - * further processing by ChangeVarNodes_walker. The callback is called - * only for expressions and other children nodes of a Query processed by - * a walker. Initial processing of the root Query doesn't involve the - * callback. + * ChangeVarNodes changes a given node and all of its underlying nodes. This + * version of function additionally takes a callback, which has a chance to + * process a node before ChangeVarNodes_walker. A callback returns a boolean + * value indicating if the given node should be skipped from further processing + * by ChangeVarNodes_walker. The callback is called only for expressions and + * other children nodes of a Query processed by a walker. Initial processing + * of the root Query doesn't involve the callback. */ void ChangeVarNodesExtended(Node *node, int rt_index, int new_index, |