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Fixes to getImportedKeys/getExportedKeys from Jason Davies

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Previous versions did not correctly identify primary/foreign keys
This commit is contained in:
Dave Cramer
2002-01-18 17:21:51 +00:00
parent bb698c25c7
commit 83b5ae65a0
2 changed files with 116 additions and 112 deletions
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114
src/interfaces/jdbc/org/postgresql/jdbc1/DatabaseMetaData.java
View File

@ -13,7 +13,7 @@ import org.postgresql.util.PSQLException;
/* /*
* This class provides information about the database as a whole. * This class provides information about the database as a whole.
* *
* $Id: DatabaseMetaData.java,v 1.40 2001/11/19 23:16:45 momjian Exp $ * $Id: DatabaseMetaData.java,v 1.41 2002/01/18 17:21:51 davec Exp $
* *
* <p>Many of the methods here return lists of information in ResultSets. You * <p>Many of the methods here return lists of information in ResultSets. You
* can use the normal ResultSet methods such as getString and getInt to * can use the normal ResultSet methods such as getString and getInt to
@ -2299,8 +2299,8 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
+ "pg_class ic,pg_proc p, pg_index i " + "pg_class ic,pg_proc p, pg_index i "
+ "WHERE t.tgrelid=c.oid AND t.tgconstrrelid=c2.oid " + "WHERE t.tgrelid=c.oid AND t.tgconstrrelid=c2.oid "
+ "AND t.tgfoid=p.oid AND tgisconstraint " + "AND t.tgfoid=p.oid AND tgisconstraint "
+ ((primaryTable != null) ? "AND c2.relname='" + primaryTable + "' " : "") + ((primaryTable != null) ? "AND c.relname='" + primaryTable + "' " : "")
+ ((foreignTable != null) ? "AND c.relname='" + foreignTable + "' " : "") + ((foreignTable != null) ? "AND c2.relname='" + foreignTable + "' " : "")
+ "AND i.indrelid=c.oid " + "AND i.indrelid=c.oid "
+ "AND i.indexrelid=ic.oid AND i.indisprimary " + "AND i.indexrelid=ic.oid AND i.indisprimary "
+ "ORDER BY c.relname,c2.relname" + "ORDER BY c.relname,c2.relname"
@ -2339,65 +2339,67 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
else if ("setdefault".equals(rule)) else if ("setdefault".equals(rule))
action = importedKeySetDefault; action = importedKeySetDefault;
tuple[col] = Integer.toString(action).getBytes(); tuple[col] = Integer.toString(action).getBytes();
foundRule = true;
if (!foundRule)
{
tuple[2] = rs.getBytes(1); //PKTABLE_NAME
tuple[6] = rs.getBytes(2); //FKTABLE_NAME
// Parse the tgargs data
StringBuffer fkeyColumns = new StringBuffer();
StringBuffer pkeyColumns = new StringBuffer();
int numColumns = (rs.getInt(7) >> 1) - 2;
String s = rs.getString(8);
int pos = s.lastIndexOf("\\000");
for (int c = 0;c < numColumns;c++)
{
if (pos > -1)
{
int pos2 = s.lastIndexOf("\\000", pos - 1);
if (pos2 > -1)
{
if (pkeyColumns.length() > 0)
pkeyColumns.insert(0, ',');
pkeyColumns.insert(0, s.substring(pos2 + 4, pos)); //PKCOLUMN_NAME
pos = s.lastIndexOf("\\000", pos2 - 1);
if (pos > -1)
{
if (fkeyColumns.length() > 0)
fkeyColumns.insert(0, ',');
fkeyColumns.insert(0, s.substring(pos + 4, pos2)); //FKCOLUMN_NAME
}
}
}
}
tuple[3] = pkeyColumns.toString().getBytes(); //PKCOLUMN_NAME
tuple[7] = fkeyColumns.toString().getBytes(); //FKCOLUMN_NAME
tuple[8] = Integer.toString(seq++).getBytes(); //KEY_SEQ
tuple[11] = fKeyName.getBytes(); //FK_NAME
tuple[12] = rs.getBytes(4); //PK_NAME
// DEFERRABILITY
int deferrability = importedKeyNotDeferrable;
boolean deferrable = rs.getBoolean(5);
boolean initiallyDeferred = rs.getBoolean(6);
if (deferrable)
{
if (initiallyDeferred)
deferrability = importedKeyInitiallyDeferred;
else
deferrability = importedKeyInitiallyImmediate;
}
tuple[13] = Integer.toString(deferrability).getBytes();
foundRule = true;
}
} }
} }
} }
while ((hasMore = rs.next()) && fKeyName.equals(rs.getString(3))); while ((hasMore = rs.next()) && fKeyName.equals(rs.getString(3)));
if (foundRule) if(foundRule) tuples.addElement(tuple);
{
tuple[2] = rs.getBytes(2); //PKTABLE_NAME
tuple[6] = rs.getBytes(1); //FKTABLE_NAME
// Parse the tgargs data
StringBuffer fkeyColumns = new StringBuffer();
StringBuffer pkeyColumns = new StringBuffer();
int numColumns = (rs.getInt(7) >> 1) - 2;
String s = rs.getString(8);
int pos = s.lastIndexOf("\\000");
for (int c = 0;c < numColumns;c++)
{
if (pos > -1)
{
int pos2 = s.lastIndexOf("\\000", pos - 1);
if (pos2 > -1)
{
if (fkeyColumns.length() > 0)
fkeyColumns.insert(0, ',');
fkeyColumns.insert(0, s.substring(pos2 + 4, pos)); //FKCOLUMN_NAME
pos = s.lastIndexOf("\\000", pos2 - 1);
if (pos > -1)
{
if (pkeyColumns.length() > 0)
pkeyColumns.insert(0, ',');
pkeyColumns.insert(0, s.substring(pos + 4, pos2)); //PKCOLUMN_NAME
}
}
}
}
tuple[7] = fkeyColumns.toString().getBytes(); //FKCOLUMN_NAME
tuple[3] = pkeyColumns.toString().getBytes(); //PKCOLUMN_NAME
tuple[8] = Integer.toString(seq++).getBytes(); //KEY_SEQ
tuple[11] = fKeyName.getBytes(); //FK_NAME
tuple[12] = rs.getBytes(4); //PK_NAME
// DEFERRABILITY
int deferrability = importedKeyNotDeferrable;
boolean deferrable = rs.getBoolean(5);
boolean initiallyDeferred = rs.getBoolean(6);
if (deferrable)
{
if (initiallyDeferred)
deferrability = importedKeyInitiallyDeferred;
else
deferrability = importedKeyInitiallyImmediate;
}
tuple[13] = Integer.toString(deferrability).getBytes();
tuples.addElement(tuple);
}
} }
while (hasMore); while (hasMore);
} }

114
src/interfaces/jdbc/org/postgresql/jdbc2/DatabaseMetaData.java
View File

@ -15,7 +15,7 @@ import org.postgresql.util.PSQLException;
/* /*
* This class provides information about the database as a whole. * This class provides information about the database as a whole.
* *
* $Id: DatabaseMetaData.java,v 1.47 2001/11/19 23:16:46 momjian Exp $ * $Id: DatabaseMetaData.java,v 1.48 2002/01/18 17:21:31 davec Exp $
* *
* <p>Many of the methods here return lists of information in ResultSets. You * <p>Many of the methods here return lists of information in ResultSets. You
* can use the normal ResultSet methods such as getString and getInt to * can use the normal ResultSet methods such as getString and getInt to
@ -2427,8 +2427,8 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
+ "pg_class ic,pg_proc p, pg_index i " + "pg_class ic,pg_proc p, pg_index i "
+ "WHERE t.tgrelid=c.oid AND t.tgconstrrelid=c2.oid " + "WHERE t.tgrelid=c.oid AND t.tgconstrrelid=c2.oid "
+ "AND t.tgfoid=p.oid AND tgisconstraint " + "AND t.tgfoid=p.oid AND tgisconstraint "
+ ((primaryTable != null) ? "AND c2.relname='" + primaryTable + "' " : "") + ((primaryTable != null) ? "AND c.relname='" + primaryTable + "' " : "")
+ ((foreignTable != null) ? "AND c.relname='" + foreignTable + "' " : "") + ((foreignTable != null) ? "AND c2.relname='" + foreignTable + "' " : "")
+ "AND i.indrelid=c.oid " + "AND i.indrelid=c.oid "
+ "AND i.indexrelid=ic.oid AND i.indisprimary " + "AND i.indexrelid=ic.oid AND i.indisprimary "
+ "ORDER BY c.relname,c2.relname" + "ORDER BY c.relname,c2.relname"
@ -2467,65 +2467,67 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
else if ("setdefault".equals(rule)) else if ("setdefault".equals(rule))
action = importedKeySetDefault; action = importedKeySetDefault;
tuple[col] = Integer.toString(action).getBytes(); tuple[col] = Integer.toString(action).getBytes();
foundRule = true;
if (!foundRule)
{
tuple[2] = rs.getBytes(1); //PKTABLE_NAME
tuple[6] = rs.getBytes(2); //FKTABLE_NAME
// Parse the tgargs data
StringBuffer fkeyColumns = new StringBuffer();
StringBuffer pkeyColumns = new StringBuffer();
int numColumns = (rs.getInt(7) >> 1) - 2;
String s = rs.getString(8);
int pos = s.lastIndexOf("\\000");
for (int c = 0;c < numColumns;c++)
{
if (pos > -1)
{
int pos2 = s.lastIndexOf("\\000", pos - 1);
if (pos2 > -1)
{
if (pkeyColumns.length() > 0)
pkeyColumns.insert(0, ',');
pkeyColumns.insert(0, s.substring(pos2 + 4, pos)); //PKCOLUMN_NAME
pos = s.lastIndexOf("\\000", pos2 - 1);
if (pos > -1)
{
if (fkeyColumns.length() > 0)
fkeyColumns.insert(0, ',');
fkeyColumns.insert(0, s.substring(pos + 4, pos2)); //FKCOLUMN_NAME
}
}
}
}
tuple[3] = pkeyColumns.toString().getBytes(); //PKCOLUMN_NAME
tuple[7] = fkeyColumns.toString().getBytes(); //FKCOLUMN_NAME
tuple[8] = Integer.toString(seq++).getBytes(); //KEY_SEQ
tuple[11] = fKeyName.getBytes(); //FK_NAME
tuple[12] = rs.getBytes(4); //PK_NAME
// DEFERRABILITY
int deferrability = importedKeyNotDeferrable;
boolean deferrable = rs.getBoolean(5);
boolean initiallyDeferred = rs.getBoolean(6);
if (deferrable)
{
if (initiallyDeferred)
deferrability = importedKeyInitiallyDeferred;
else
deferrability = importedKeyInitiallyImmediate;
}
tuple[13] = Integer.toString(deferrability).getBytes();
foundRule = true;
}
} }
} }
} }
while ((hasMore = rs.next()) && fKeyName.equals(rs.getString(3))); while ((hasMore = rs.next()) && fKeyName.equals(rs.getString(3)));
if (foundRule) if(foundRule) tuples.addElement(tuple);
{
tuple[2] = rs.getBytes(2); //PKTABLE_NAME
tuple[6] = rs.getBytes(1); //FKTABLE_NAME
// Parse the tgargs data
StringBuffer fkeyColumns = new StringBuffer();
StringBuffer pkeyColumns = new StringBuffer();
int numColumns = (rs.getInt(7) >> 1) - 2;
String s = rs.getString(8);
int pos = s.lastIndexOf("\\000");
for (int c = 0;c < numColumns;c++)
{
if (pos > -1)
{
int pos2 = s.lastIndexOf("\\000", pos - 1);
if (pos2 > -1)
{
if (fkeyColumns.length() > 0)
fkeyColumns.insert(0, ',');
fkeyColumns.insert(0, s.substring(pos2 + 4, pos)); //FKCOLUMN_NAME
pos = s.lastIndexOf("\\000", pos2 - 1);
if (pos > -1)
{
if (pkeyColumns.length() > 0)
pkeyColumns.insert(0, ',');
pkeyColumns.insert(0, s.substring(pos + 4, pos2)); //PKCOLUMN_NAME
}
}
}
}
tuple[7] = fkeyColumns.toString().getBytes(); //FKCOLUMN_NAME
tuple[3] = pkeyColumns.toString().getBytes(); //PKCOLUMN_NAME
tuple[8] = Integer.toString(seq++).getBytes(); //KEY_SEQ
tuple[11] = fKeyName.getBytes(); //FK_NAME
tuple[12] = rs.getBytes(4); //PK_NAME
// DEFERRABILITY
int deferrability = importedKeyNotDeferrable;
boolean deferrable = rs.getBoolean(5);
boolean initiallyDeferred = rs.getBoolean(6);
if (deferrable)
{
if (initiallyDeferred)
deferrability = importedKeyInitiallyDeferred;
else
deferrability = importedKeyInitiallyImmediate;
}
tuple[13] = Integer.toString(deferrability).getBytes();
tuples.addElement(tuple);
}
} }
while (hasMore); while (hasMore);
} }