diff options
| author | Tom Lane | 2000-02-26 21:11:10 +0000 |
|---|---|---|
| committer | Tom Lane | 2000-02-26 21:11:10 +0000 |
| commit | 7173c485c817735012ceacd8662a0c2aa3068396 (patch) | |
| tree | 46cf181e4970ba015fb580631f790334b8228775 /src/include/parser | |
| parent | cbf4c9671ed01c769c6d6abb29fe082437373c33 (diff) | |
Fix exprTypmod to recognize length-coercion function expressions,
such as bpchar(char_expression, N), and pull out the attrtypmod that
the function is coercing to. This allows correct deduction of the
column type in examples such as
CREATE VIEW v AS SELECT f1::char(8) FROM tbl;
Formerly we labeled v's column as char-of-unknown-length not char(8).
Also, this change causes the parser not to insert a redundant length
coercion function if the user has explicitly casted an INSERT or UPDATE
expression to the right length.
Diffstat (limited to 'src/include/parser')
| -rw-r--r-- | src/include/parser/parse_expr.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/parser/parse_expr.h b/src/include/parser/parse_expr.h index 5d20173745c..50d7b284bb5 100644 --- a/src/include/parser/parse_expr.h +++ b/src/include/parser/parse_expr.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: parse_expr.h,v 1.16 2000/01/26 05:58:27 momjian Exp $ + * $Id: parse_expr.h,v 1.17 2000/02/26 21:11:09 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -23,5 +23,6 @@ extern Node *transformExpr(ParseState *pstate, Node *expr, int precedence); extern Oid exprType(Node *expr); extern int32 exprTypmod(Node *expr); +extern bool exprIsLengthCoercion(Node *expr, int32 *coercedTypmod); #endif /* PARSE_EXPR_H */ |