add field data type name

linked to this pull request
#3287

Author: devorama

system/Database/MySQLi/Result.php

@@ -87,6 +87,42 @@ public function getFieldNames(): array
 	 */
 	public function getFieldData(): array
 	{
+		static $data_types = [
+			MYSQLI_TYPE_DECIMAL     => 'decimal',
+			MYSQLI_TYPE_NEWDECIMAL  => 'newdecimal',
+			MYSQLI_TYPE_FLOAT       => 'float',
+			MYSQLI_TYPE_DOUBLE      => 'double',
+			
+			MYSQLI_TYPE_BIT         => 'bit',
+			MYSQLI_TYPE_TINY        => 'tiny',
+			MYSQLI_TYPE_SHORT       => 'short',
+			MYSQLI_TYPE_LONG        => 'long',
+			MYSQLI_TYPE_LONGLONG    => 'longlong',
+			MYSQLI_TYPE_INT24       => 'int24',
+			
+			MYSQLI_TYPE_YEAR        => 'year',
+			
+			MYSQLI_TYPE_TIMESTAMP   => 'timestamp',
+			MYSQLI_TYPE_DATE        => 'date',
+			MYSQLI_TYPE_TIME        => 'time',
+			MYSQLI_TYPE_DATETIME    => 'datetime',
+			MYSQLI_TYPE_NEWDATE     => 'newdate',
+			
+			MYSQLI_TYPE_INTERVAL    => 'interval',
+			MYSQLI_TYPE_SET         => 'set',
+			MYSQLI_TYPE_ENUM        => 'enum',
+			
+			MYSQLI_TYPE_VAR_STRING  => 'var_string',
+			MYSQLI_TYPE_STRING      => 'string',
+			MYSQLI_TYPE_CHAR        => 'char',
+			
+			MYSQLI_TYPE_GEOMETRY    => 'geometry',
+			MYSQLI_TYPE_TINY_BLOB   => 'tiny_blob',
+			MYSQLI_TYPE_MEDIUM_BLOB => 'medium_blob',
+			MYSQLI_TYPE_LONG_BLOB   => 'long_blob',
+			MYSQLI_TYPE_BLOB        => 'blob',
+		];
+		
 		$retVal    = [];
 		$fieldData = $this->resultID->fetch_fields();
 
@@ -95,8 +131,10 @@ public function getFieldData(): array
 			$retVal[$i]              = new \stdClass();
 			$retVal[$i]->name        = $data->name;
 			$retVal[$i]->type        = $data->type;
+			$retVal[$i]->type_name   = isset($data_types[$data->type]) ? $data_types[$data->type] : null;
 			$retVal[$i]->max_length  = $data->max_length;
 			$retVal[$i]->primary_key = (int) ($data->flags & 2);
+			$retVal[$i]->length      = $data->length;
 			$retVal[$i]->default     = $data->def;
 		}