diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 30652a56df..0e7d5bf9f5 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.303 2006/03/05 15:58:56 momjian Exp $ + * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.304 2006/03/14 22:48:22 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -142,6 +142,11 @@ typedef struct Query * Most of these node types appear in raw parsetrees output by the grammar, * and get transformed to something else by the analyzer. A few of them * are used as-is in transformed querytrees. + * + * Many of the node types used in raw parsetrees include a "location" field. + * This is a byte (not character) offset in the original source text, to be + * used for positioning an error cursor when there is an analysis-time + * error related to the node. ****************************************************************************/ /* @@ -165,6 +170,7 @@ typedef struct TypeName bool pct_type; /* %TYPE specified? */ int32 typmod; /* type modifier */ List *arrayBounds; /* array bounds */ + int location; /* token location, or -1 if unknown */ } TypeName; /* @@ -182,6 +188,7 @@ typedef struct ColumnRef { NodeTag type; List *fields; /* field names (list of Value strings) */ + int location; /* token location, or -1 if unknown */ } ColumnRef; /* @@ -217,6 +224,7 @@ typedef struct A_Expr List *name; /* possibly-qualified name of operator */ Node *lexpr; /* left argument, or NULL if none */ Node *rexpr; /* right argument, or NULL if none */ + int location; /* token location, or -1 if unknown */ } A_Expr; /* @@ -226,7 +234,7 @@ typedef struct A_Const { NodeTag type; Value val; /* the value (with the tag) */ - TypeName *typename; /* typecast */ + TypeName *typename; /* typecast, or NULL if none */ } A_Const; /* @@ -235,8 +243,8 @@ typedef struct A_Const * NOTE: for mostly historical reasons, A_Const parsenodes contain * room for a TypeName; we only generate a separate TypeCast node if the * argument to be casted is not a constant. In theory either representation - * would work, but it is convenient to have the target type immediately - * available while resolving a constant's datatype. + * would work, but the combined representation saves a bit of code in many + * productions in gram.y. */ typedef struct TypeCast { @@ -260,6 +268,7 @@ typedef struct FuncCall List *args; /* the arguments (list of exprs) */ bool agg_star; /* argument was really '*' */ bool agg_distinct; /* arguments were labeled DISTINCT */ + int location; /* token location, or -1 if unknown */ } FuncCall; /* |