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The global function for getting a typename from an oid now supports passing the typmod of a column.

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This is used by the list of columns for a table. Works for char, varchar, text and numeric.
This commit is contained in:
eelke 2017-12-19 19:33:22 +01:00
parent 6599498556
commit c324daa75b
3 changed files with 26 additions and 5 deletions
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27
pglab/PgDatabaseCatalog.cpp
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@ -8,7 +8,9 @@
#include "PgNamespaceContainer.h"
#include "PgTypeContainer.h"
#include "Pgsql_Connection.h"
#include "Pgsql_oids.h"
using namespace Pgsql;
QString getRoleNameFromOid(const PgDatabaseCatalog &cat, Oid oid)
{
@ -53,18 +55,37 @@ QString getTablespaceDisplayString(const PgDatabaseCatalog &cat, Oid oid)
return QString("ts %1").arg(oid);
}
QString getTypeDisplayString(const PgDatabaseCatalog &cat, Oid oid)
QString getTypeDisplayString(const PgDatabaseCatalog &cat, Oid oid, int32_t typmod)
{
auto tc = cat.types();
auto t = tc->getByKey(oid);
QString s;
if (t.category == TypCategory::Array) {
auto et = tc->getByKey(t.elem);
s = et.name;
// auto et = tc->getByKey(t.elem);
// s = et.name;
s = getTypeDisplayString(cat, t.elem, typmod);
s += "[]";
}
else {
s = t.name;
switch (oid) {
case varchar_oid:
case char_oid:
case text_oid:
if (typmod > 4)
s += QString::asprintf("(%d)", typmod-4);
break;
case numeric_oid:
if (typmod > 4) {
int prec = (typmod - 4) / 65536;
int scale = (typmod - 4) % 65536;
if (scale > 0)
s += QString::asprintf("(%d,%d)", prec, scale);
else
s += QString::asprintf("(%d)", prec);
}
break;
}
}
return s;
}