diff options
author | Tom Lane | 2002-09-18 21:35:25 +0000 |
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committer | Tom Lane | 2002-09-18 21:35:25 +0000 |
commit | b26dfb95222fddd25322bdddf3a5a58d3392d8b1 (patch) | |
tree | 757cf0bafab985d38a5c84d3afebe5edd34c4f27 /src/backend/nodes/outfuncs.c | |
parent | cc70ba2e4daa78ba99619770e19beb06de3dfd1c (diff) |
Extend pg_cast castimplicit column to a three-way value; this allows us
to be flexible about assignment casts without introducing ambiguity in
operator/function resolution. Introduce a well-defined promotion hierarchy
for numeric datatypes (int2->int4->int8->numeric->float4->float8).
Change make_const to initially label numeric literals as int4, int8, or
numeric (never float8 anymore).
Explicitly mark Func and RelabelType nodes to indicate whether they came
from a function call, explicit cast, or implicit cast; use this to do
reverse-listing more accurately and without so many heuristics.
Explicit casts to char, varchar, bit, varbit will truncate or pad without
raising an error (the pre-7.2 behavior), while assigning to a column without
any explicit cast will still raise an error for wrong-length data like 7.3.
This more nearly follows the SQL spec than 7.2 behavior (we should be
reporting a 'completion condition' in the explicit-cast cases, but we have
no mechanism for that, so just do silent truncation).
Fix some problems with enforcement of typmod for array elements;
it didn't work at all in 'UPDATE ... SET array[n] = foo', for example.
Provide a generalized array_length_coerce() function to replace the
specialized per-array-type functions that used to be needed (and were
missing for NUMERIC as well as all the datetime types).
Add missing conversions int8<->float4, text<->numeric, oid<->int8.
initdb forced.
Diffstat (limited to 'src/backend/nodes/outfuncs.c')
-rw-r--r-- | src/backend/nodes/outfuncs.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index 8873c4e3d2c..fde42291691 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -5,7 +5,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.173 2002/09/04 20:31:19 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.174 2002/09/18 21:35:21 tgl Exp $ * * NOTES * Every (plan) node in POSTGRES has an associated "out" routine which @@ -860,10 +860,11 @@ static void _outFunc(StringInfo str, Func *node) { appendStringInfo(str, - " FUNC :funcid %u :funcresulttype %u :funcretset %s ", + " FUNC :funcid %u :funcresulttype %u :funcretset %s :funcformat %d ", node->funcid, node->funcresulttype, - booltostr(node->funcretset)); + booltostr(node->funcretset), + (int) node->funcformat); } /* @@ -914,9 +915,11 @@ _outRelabelType(StringInfo str, RelabelType *node) { appendStringInfo(str, " RELABELTYPE :arg "); _outNode(str, node->arg); - - appendStringInfo(str, " :resulttype %u :resulttypmod %d ", - node->resulttype, node->resulttypmod); + appendStringInfo(str, + " :resulttype %u :resulttypmod %d :relabelformat %d ", + node->resulttype, + node->resulttypmod, + (int) node->relabelformat); } /* |