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Improve unique-constraint-violation error messages to include the exact

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values being complained of.

In passing, also remove the arbitrary length limitation in the similar
error detail message for foreign key violations.

Itagaki Takahiro
This commit is contained in:
Tom Lane
2009-08-01 19:59:41 +00:00
parent 2487d872e0
commit b680ae4bdb
20 changed files with 173 additions and 41 deletions
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33
src/backend/utils/adt/ruleutils.c
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@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.305 2009/07/29 20:56:19 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.306 2009/08/01 19:59:41 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -142,7 +142,8 @@ static char *pg_get_viewdef_worker(Oid viewoid, int prettyFlags);
static void decompile_column_index_array(Datum column_index_array, Oid relId,
StringInfo buf);
static char *pg_get_ruledef_worker(Oid ruleoid, int prettyFlags);
static char *pg_get_indexdef_worker(Oid indexrelid, int colno, bool showTblSpc,
static char *pg_get_indexdef_worker(Oid indexrelid, int colno,
bool attrsOnly, bool showTblSpc,
int prettyFlags);
static char *pg_get_constraintdef_worker(Oid constraintId, bool fullCommand,
int prettyFlags);
@@ -613,7 +614,7 @@ pg_get_indexdef(PG_FUNCTION_ARGS)
Oid indexrelid = PG_GETARG_OID(0);
PG_RETURN_TEXT_P(string_to_text(pg_get_indexdef_worker(indexrelid, 0,
false, 0)));
false, false, 0)));
}
Datum
@@ -626,18 +627,31 @@ pg_get_indexdef_ext(PG_FUNCTION_ARGS)
prettyFlags = pretty ? PRETTYFLAG_PAREN | PRETTYFLAG_INDENT : 0;
PG_RETURN_TEXT_P(string_to_text(pg_get_indexdef_worker(indexrelid, colno,
false, prettyFlags)));
colno != 0,
false,
prettyFlags)));
}
/* Internal version that returns a palloc'd C string */
char *
pg_get_indexdef_string(Oid indexrelid)
{
return pg_get_indexdef_worker(indexrelid, 0, true, 0);
return pg_get_indexdef_worker(indexrelid, 0, false, true, 0);
}
/* Internal version that just reports the column definitions */
char *
pg_get_indexdef_columns(Oid indexrelid, bool pretty)
{
int prettyFlags;
prettyFlags = pretty ? PRETTYFLAG_PAREN | PRETTYFLAG_INDENT : 0;
return pg_get_indexdef_worker(indexrelid, 0, true, false, prettyFlags);
}
static char *
pg_get_indexdef_worker(Oid indexrelid, int colno, bool showTblSpc,
pg_get_indexdef_worker(Oid indexrelid, int colno,
bool attrsOnly, bool showTblSpc,
int prettyFlags)
{
HeapTuple ht_idx;
@@ -736,7 +750,7 @@ pg_get_indexdef_worker(Oid indexrelid, int colno, bool showTblSpc,
*/
initStringInfo(&buf);
if (!colno)
if (!attrsOnly)
appendStringInfo(&buf, "CREATE %sINDEX %s ON %s USING %s (",
idxrec->indisunique ? "UNIQUE " : "",
quote_identifier(NameStr(idxrelrec->relname)),
@@ -790,8 +804,7 @@ pg_get_indexdef_worker(Oid indexrelid, int colno, bool showTblSpc,
keycoltype = exprType(indexkey);
}
/* Provide decoration only in the colno=0 case */
if (!colno)
if (!attrsOnly && (!colno || colno == keyno + 1))
{
/* Add the operator class name, if not default */
get_opclass_name(indclass->values[keyno], keycoltype, &buf);
@@ -816,7 +829,7 @@ pg_get_indexdef_worker(Oid indexrelid, int colno, bool showTblSpc,
}
}
if (!colno)
if (!attrsOnly)
{
appendStringInfoChar(&buf, ')');