diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 9a0bb8eec3..a03597c9f3 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -13,7 +13,7 @@ * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.423 2010/01/06 05:31:14 itagaki Exp $ + * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.424 2010/01/15 22:36:35 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -2260,12 +2260,16 @@ typedef struct VacuumStmt /* ---------------------- * Explain Statement + * + * The "query" field is either a raw parse tree (SelectStmt, InsertStmt, etc) + * or a Query node if parse analysis has been done. Note that rewriting and + * planning of the query are always postponed until execution of EXPLAIN. * ---------------------- */ typedef struct ExplainStmt { NodeTag type; - Node *query; /* the query (as a raw parse tree) */ + Node *query; /* the query (see comments above) */ List *options; /* list of DefElem nodes */ } ExplainStmt; |