Documentation TYPO3 par Ameos |
00001 <?php 00002 /* 00003 V4.93 10 Oct 2006 (c) 2000-2006 John Lim (jlim#natsoft.com.my). All rights reserved. 00004 00005 First cut at the Netezza Driver by Josh Eldridge joshuae74#hotmail.com 00006 Based on the previous postgres drivers. 00007 http://www.netezza.com/ 00008 Major Additions/Changes: 00009 MetaDatabasesSQL, MetaTablesSQL, MetaColumnsSQL 00010 Note: You have to have admin privileges to access the system tables 00011 Removed non-working keys code (Netezza has no concept of keys) 00012 Fixed the way data types and lengths are returned in MetaColumns() 00013 as well as added the default lengths for certain types 00014 Updated public variables for Netezza 00015 Still need to remove blob functions, as Netezza doesn't suppport blob 00016 */ 00017 // security - hide paths 00018 if (!defined('ADODB_DIR')) die(); 00019 00020 include_once(ADODB_DIR.'/drivers/adodb-postgres64.inc.php'); 00021 00022 class ADODB_netezza extends ADODB_postgres64 { 00023 var $databaseType = 'netezza'; 00024 var $dataProvider = 'netezza'; 00025 var $hasInsertID = false; 00026 var $_resultid = false; 00027 var $concat_operator='||'; 00028 var $random = 'random'; 00029 var $metaDatabasesSQL = "select objname from _v_object_data where objtype='database' order by 1"; 00030 var $metaTablesSQL = "select objname from _v_object_data where objtype='table' order by 1"; 00031 var $isoDates = true; // accepts dates in ISO format 00032 var $sysDate = "CURRENT_DATE"; 00033 var $sysTimeStamp = "CURRENT_TIMESTAMP"; 00034 var $blobEncodeType = 'C'; 00035 var $metaColumnsSQL = "SELECT attname, atttype FROM _v_relation_column_def WHERE name = '%s' AND attnum > 0 ORDER BY attnum"; 00036 var $metaColumnsSQL1 = "SELECT attname, atttype FROM _v_relation_column_def WHERE name = '%s' AND attnum > 0 ORDER BY attnum"; 00037 // netezza doesn't have keys. it does have distributions, so maybe this is 00038 // something that can be pulled from the system tables 00039 var $metaKeySQL = ""; 00040 var $hasAffectedRows = true; 00041 var $hasLimit = true; 00042 var $true = 't'; // string that represents TRUE for a database 00043 var $false = 'f'; // string that represents FALSE for a database 00044 var $fmtDate = "'Y-m-d'"; // used by DBDate() as the default date format used by the database 00045 var $fmtTimeStamp = "'Y-m-d G:i:s'"; // used by DBTimeStamp as the default timestamp fmt. 00046 var $ansiOuter = true; 00047 var $autoRollback = true; // apparently pgsql does not autorollback properly before 4.3.4 00048 // http://bugs.php.net/bug.php?id=25404 00049 00050 00051 function ADODB_netezza() 00052 { 00053 00054 } 00055 00056 function &MetaColumns($table,$upper=true) 00057 { 00058 00059 // Changed this function to support Netezza which has no concept of keys 00060 // could posisbly work on other things from the system table later. 00061 00062 global $ADODB_FETCH_MODE; 00063 00064 $table = strtolower($table); 00065 00066 $save = $ADODB_FETCH_MODE; 00067 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 00068 if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false); 00069 00070 $rs =& $this->Execute(sprintf($this->metaColumnsSQL,$table,$table)); 00071 if (isset($savem)) $this->SetFetchMode($savem); 00072 $ADODB_FETCH_MODE = $save; 00073 00074 if ($rs === false) return false; 00075 00076 $retarr = array(); 00077 while (!$rs->EOF) { 00078 $fld = new ADOFieldObject(); 00079 $fld->name = $rs->fields[0]; 00080 00081 // since we're returning type and length as one string, 00082 // split them out here. 00083 00084 if ($first = strstr($rs->fields[1], "(")) { 00085 $fld->max_length = trim($first, "()"); 00086 } else { 00087 $fld->max_length = -1; 00088 } 00089 00090 if ($first = strpos($rs->fields[1], "(")) { 00091 $fld->type = substr($rs->fields[1], 0, $first); 00092 } else { 00093 $fld->type = $rs->fields[1]; 00094 } 00095 00096 switch ($fld->type) { 00097 case "byteint": 00098 case "boolean": 00099 $fld->max_length = 1; 00100 break; 00101 case "smallint": 00102 $fld->max_length = 2; 00103 break; 00104 case "integer": 00105 case "numeric": 00106 case "date": 00107 $fld->max_length = 4; 00108 break; 00109 case "bigint": 00110 case "time": 00111 case "timestamp": 00112 $fld->max_length = 8; 00113 break; 00114 case "timetz": 00115 case "time with time zone": 00116 $fld->max_length = 12; 00117 break; 00118 } 00119 00120 if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld; 00121 else $retarr[($upper) ? strtoupper($fld->name) : $fld->name] = $fld; 00122 00123 $rs->MoveNext(); 00124 } 00125 $rs->Close(); 00126 return $retarr; 00127 00128 } 00129 00130 00131 } 00132 00133 /*-------------------------------------------------------------------------------------- 00134 Class Name: Recordset 00135 --------------------------------------------------------------------------------------*/ 00136 00137 class ADORecordSet_netezza extends ADORecordSet_postgres64 00138 { 00139 var $databaseType = "netezza"; 00140 var $canSeek = true; 00141 00142 function ADORecordSet_netezza($queryID,$mode=false) 00143 { 00144 if ($mode === false) { 00145 global $ADODB_FETCH_MODE; 00146 $mode = $ADODB_FETCH_MODE; 00147 } 00148 switch ($mode) 00149 { 00150 case ADODB_FETCH_NUM: $this->fetchMode = PGSQL_NUM; break; 00151 case ADODB_FETCH_ASSOC:$this->fetchMode = PGSQL_ASSOC; break; 00152 00153 case ADODB_FETCH_DEFAULT: 00154 case ADODB_FETCH_BOTH: 00155 default: $this->fetchMode = PGSQL_BOTH; break; 00156 } 00157 $this->adodbFetchMode = $mode; 00158 $this->ADORecordSet($queryID); 00159 } 00160 00161 // _initrs modified to disable blob handling 00162 function _initrs() 00163 { 00164 global $ADODB_COUNTRECS; 00165 $this->_numOfRows = ($ADODB_COUNTRECS)? @pg_numrows($this->_queryID):-1; 00166 $this->_numOfFields = @pg_numfields($this->_queryID); 00167 } 00168 00169 } 00170 ?>