return "SELECT NULL, NULL, NULL, NULL, NULL FROM (SELECT 1) as X WHERE 0=1"; //$NON-NLS-1$
}
else if ((m = fkPattern.matcher(modified)).matches()){
return "SELECT PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, PKCOLUMN_NAME, FKTABLE_CAT, FKTABLE_SCHEM, "+//$NON-NLS-1$
"FKTABLE_NAME, FKCOLUMN_NAME, KEY_SEQ, UPDATE_RULE, DELETE_RULE, FK_NAME, PK_NAME, DEFERRABILITY "+//$NON-NLS-1$
"FROM SYS.ReferenceKeyColumns WHERE PKTABLE_NAME LIKE "+m.group(14)+" and PKTABLE_SCHEM LIKE "+m.group(15);//$NON-NLS-1$ //$NON-NLS-2$
}
else if (modified.equalsIgnoreCase("select version()")) { //$NON-NLS-1$
return "SELECT 'Teiid "+ApplicationInfo.getInstance().getReleaseNumber()+"'"; //$NON-NLS-1$ //$NON-NLS-2$
}
else if (modified.startsWith("SELECT name FROM master..sysdatabases")) { //$NON-NLS-1$