eelke/pgLab
1
0
Fork 0
Code Issues 28 Pull requests Projects Releases 1 Packages Wiki Activity Actions

New column page

Browse source 
Shows SQL for columns ALTER TABLE ... [ADD|DROP] COLUMN combines a selection
of multiple columns into a single alter table.
Show collation in list of columns.

(order of columns isn't what is should be but that should maybe be fixed
by a generic column selection and ordering mechanism that knows what the
default sort should be)
This commit is contained in:
eelke 2018-11-29 20:21:36 +01:00
parent 73c4cf4790
commit 57217974f4
19 changed files with 345 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

54
pglablib/PgAttribute.cpp
View file

@ -1,2 +1,56 @@
#include "PgAttribute.h"
#include "QStringBuilder"
#include "SqlFormattingUtils.h"
#include "PgClass.h"
#include "PgDatabaseCatalog.h"
#include "PgTypeContainer.h"
#include "PgCollation.h"
#include "PgCollationContainer.h"
QString PgAttribute::columnDefinition(const PgDatabaseCatalog &cat) const
{
// create: column_name data_type [ COLLATE collation ] [ column_constraint [ ... ]
// alter: column_name data_type [ COLLATE collation ] [ column_constraint [ ... ]
// constraints NULL/NOT NULL, DEFAULT, GENERATED other constraints will be ignored here a
auto&& type = cat.types()->getByKey(typid);
QString sql = quoteIdent(name) % " " % type->name;
if (collation != InvalidOid) {
auto&& col = cat.collations()->getByKey(collation);
QString oname = col->objectName();
if (oname != "default")
sql += " COLLATE " % quoteIdent(oname);
}
if (notnull)
sql += " NOT NULL";
if (hasdef)
sql += " DEFAULT " % defaultValue;
if (identity != ' ') {
sql += " GENERATED ";
if (identity == 'a') sql += "ALWAYS";
else if (identity == 'd') sql += "BY DEFAULT";
sql += " AS IDENTITY";
}
// TODO sequence options might be missing
return sql;
}
QString PgAttribute::alterTableAddColumn(const PgDatabaseCatalog &cat, const PgClass &table) const
{
QString sql = "ALTER TABLE " % table.fullyQualifiedQuotedObjectName()
% " ADD COLUMN " % columnDefinition(cat) % ";";
return sql;
}
QString PgAttribute::alterTableDropColumn(const PgDatabaseCatalog &cat, const PgClass &table) const
{
QString sql = "ALTER TABLE " % table.fullyQualifiedQuotedObjectName()
% " DROP COLUMN " % quoteIdent(name) % ";";
return sql;
}