[6779] | 1 | <?php |
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| 2 | /* |
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| 3 | V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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| 4 | |
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| 5 | First cut at the Netezza Driver by Josh Eldridge joshuae74#hotmail.com |
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| 6 | Based on the previous postgres drivers. |
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| 7 | http://www.netezza.com/ |
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| 8 | Major Additions/Changes: |
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| 9 | MetaDatabasesSQL, MetaTablesSQL, MetaColumnsSQL |
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| 10 | Note: You have to have admin privileges to access the system tables |
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| 11 | Removed non-working keys code (Netezza has no concept of keys) |
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| 12 | Fixed the way data types and lengths are returned in MetaColumns() |
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| 13 | as well as added the default lengths for certain types |
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| 14 | Updated public variables for Netezza |
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| 15 | Still need to remove blob functions, as Netezza doesn't suppport blob |
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| 16 | */ |
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| 17 | // security - hide paths |
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| 18 | if (!defined('ADODB_DIR')) die(); |
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| 19 | |
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| 20 | include_once(ADODB_DIR.'/drivers/adodb-postgres64.inc.php'); |
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| 21 | |
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| 22 | class ADODB_netezza extends ADODB_postgres64 { |
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| 23 | var $databaseType = 'netezza'; |
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| 24 | var $dataProvider = 'netezza'; |
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| 25 | var $hasInsertID = false; |
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| 26 | var $_resultid = false; |
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| 27 | var $concat_operator='||'; |
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| 28 | var $random = 'random'; |
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| 29 | var $metaDatabasesSQL = "select objname from _v_object_data where objtype='database' order by 1"; |
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| 30 | var $metaTablesSQL = "select objname from _v_object_data where objtype='table' order by 1"; |
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| 31 | var $isoDates = true; // accepts dates in ISO format |
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| 32 | var $sysDate = "CURRENT_DATE"; |
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| 33 | var $sysTimeStamp = "CURRENT_TIMESTAMP"; |
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| 34 | var $blobEncodeType = 'C'; |
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| 35 | var $metaColumnsSQL = "SELECT attname, atttype FROM _v_relation_column_def WHERE name = '%s' AND attnum > 0 ORDER BY attnum"; |
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| 36 | var $metaColumnsSQL1 = "SELECT attname, atttype FROM _v_relation_column_def WHERE name = '%s' AND attnum > 0 ORDER BY attnum"; |
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| 37 | // netezza doesn't have keys. it does have distributions, so maybe this is |
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| 38 | // something that can be pulled from the system tables |
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| 39 | var $metaKeySQL = ""; |
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| 40 | var $hasAffectedRows = true; |
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| 41 | var $hasLimit = true; |
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| 42 | var $true = 't'; // string that represents TRUE for a database |
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| 43 | var $false = 'f'; // string that represents FALSE for a database |
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| 44 | var $fmtDate = "'Y-m-d'"; // used by DBDate() as the default date format used by the database |
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| 45 | var $fmtTimeStamp = "'Y-m-d G:i:s'"; // used by DBTimeStamp as the default timestamp fmt. |
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| 46 | var $ansiOuter = true; |
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| 47 | var $autoRollback = true; // apparently pgsql does not autorollback properly before 4.3.4 |
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| 48 | // http://bugs.php.net/bug.php?id=25404 |
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| 49 | |
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| 50 | |
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| 51 | function ADODB_netezza() |
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| 52 | { |
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| 53 | |
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| 54 | } |
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| 55 | |
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| 56 | function &MetaColumns($table,$upper=true) |
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| 57 | { |
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| 58 | |
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| 59 | // Changed this function to support Netezza which has no concept of keys |
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| 60 | // could posisbly work on other things from the system table later. |
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| 61 | |
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| 62 | global $ADODB_FETCH_MODE; |
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| 63 | |
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| 64 | $table = strtolower($table); |
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| 65 | |
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| 66 | $save = $ADODB_FETCH_MODE; |
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| 67 | $ADODB_FETCH_MODE = ADODB_FETCH_NUM; |
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| 68 | if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false); |
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| 69 | |
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| 70 | $rs =& $this->Execute(sprintf($this->metaColumnsSQL,$table,$table)); |
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| 71 | if (isset($savem)) $this->SetFetchMode($savem); |
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| 72 | $ADODB_FETCH_MODE = $save; |
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| 73 | |
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| 74 | if ($rs === false) return false; |
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| 75 | |
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| 76 | $retarr = array(); |
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| 77 | while (!$rs->EOF) { |
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| 78 | $fld = new ADOFieldObject(); |
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| 79 | $fld->name = $rs->fields[0]; |
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| 80 | |
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| 81 | // since we're returning type and length as one string, |
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| 82 | // split them out here. |
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| 83 | |
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| 84 | if ($first = strstr($rs->fields[1], "(")) { |
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| 85 | $fld->max_length = trim($first, "()"); |
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| 86 | } else { |
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| 87 | $fld->max_length = -1; |
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| 88 | } |
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| 89 | |
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| 90 | if ($first = strpos($rs->fields[1], "(")) { |
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| 91 | $fld->type = substr($rs->fields[1], 0, $first); |
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| 92 | } else { |
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| 93 | $fld->type = $rs->fields[1]; |
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| 94 | } |
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| 95 | |
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| 96 | switch ($fld->type) { |
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| 97 | case "byteint": |
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| 98 | case "boolean": |
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| 99 | $fld->max_length = 1; |
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| 100 | break; |
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| 101 | case "smallint": |
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| 102 | $fld->max_length = 2; |
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| 103 | break; |
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| 104 | case "integer": |
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| 105 | case "numeric": |
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| 106 | case "date": |
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| 107 | $fld->max_length = 4; |
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| 108 | break; |
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| 109 | case "bigint": |
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| 110 | case "time": |
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| 111 | case "timestamp": |
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| 112 | $fld->max_length = 8; |
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| 113 | break; |
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| 114 | case "timetz": |
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| 115 | case "time with time zone": |
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| 116 | $fld->max_length = 12; |
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| 117 | break; |
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| 118 | } |
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| 119 | |
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| 120 | if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld; |
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| 121 | else $retarr[($upper) ? strtoupper($fld->name) : $fld->name] = $fld; |
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| 122 | |
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| 123 | $rs->MoveNext(); |
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| 124 | } |
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| 125 | $rs->Close(); |
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| 126 | return $retarr; |
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| 127 | |
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| 128 | } |
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| 129 | |
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| 130 | |
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| 131 | } |
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| 132 | |
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| 133 | /*-------------------------------------------------------------------------------------- |
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| 134 | Class Name: Recordset |
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| 135 | --------------------------------------------------------------------------------------*/ |
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| 136 | |
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| 137 | class ADORecordSet_netezza extends ADORecordSet_postgres64 |
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| 138 | { |
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| 139 | var $databaseType = "netezza"; |
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| 140 | var $canSeek = true; |
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| 141 | |
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| 142 | function ADORecordSet_netezza($queryID,$mode=false) |
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| 143 | { |
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| 144 | if ($mode === false) { |
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| 145 | global $ADODB_FETCH_MODE; |
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| 146 | $mode = $ADODB_FETCH_MODE; |
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| 147 | } |
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| 148 | switch ($mode) |
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| 149 | { |
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| 150 | case ADODB_FETCH_NUM: $this->fetchMode = PGSQL_NUM; break; |
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| 151 | case ADODB_FETCH_ASSOC:$this->fetchMode = PGSQL_ASSOC; break; |
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| 152 | |
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| 153 | case ADODB_FETCH_DEFAULT: |
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| 154 | case ADODB_FETCH_BOTH: |
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| 155 | default: $this->fetchMode = PGSQL_BOTH; break; |
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| 156 | } |
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| 157 | $this->adodbFetchMode = $mode; |
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| 158 | $this->ADORecordSet($queryID); |
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| 159 | } |
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| 160 | |
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| 161 | // _initrs modified to disable blob handling |
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| 162 | function _initrs() |
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| 163 | { |
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| 164 | global $ADODB_COUNTRECS; |
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| 165 | $this->_numOfRows = ($ADODB_COUNTRECS)? @pg_numrows($this->_queryID):-1; |
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| 166 | $this->_numOfFields = @pg_numfields($this->_queryID); |
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| 167 | } |
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| 168 | |
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| 169 | } |
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| 170 | ?> |
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